{"id":11245,"date":"2026-04-30T18:57:40","date_gmt":"2026-04-30T10:57:40","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?page_id=11245"},"modified":"2026-05-02T22:12:42","modified_gmt":"2026-05-02T14:12:42","slug":"surface-roughness-ra-to-rz-calculator","status":"publish","type":"page","link":"https:\/\/www.cncmachiningshops.com\/pt\/tools\/surface-roughness-ra-to-rz-calculator\/","title":{"rendered":"Rugosidade da superf\u00edcie Ra para Rz Calculadora"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:20px;--awb-padding-bottom:20px;--awb-background-color:var(--awb-color8);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:30px;--awb-spacing-right-large:25px;--awb-margin-bottom-large:30px;--awb-spacing-left-large:15px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:25px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><nav class=\"fusion-breadcrumbs awb-yoast-breadcrumbs fusion-breadcrumbs-1\" style=\"--awb-text-color:var(--awb-color2);--awb-breadcrumb-sep:&#039;\/&#039;;\" aria-label=\"Breadcrumb\"><span><span><a href=\"https:\/\/www.cncmachiningshops.com\/pt\/\">Casa<\/a><\/span><\/span><\/nav><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:capitalize;\">Calculadora de Acabamento Superficial Ra para Rz<\/h1><\/div><div class=\"fusion-separator\" style=\"align-self: flex-start;margin-right:auto;margin-bottom:10px;width:100%;max-width:80px;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:var(--awb-color4);border-color:var(--awb-color4);border-top-width:3px;\"><\/div><\/div><div class=\"fusion-text fusion-text-1\" style=\"--awb-content-alignment:left;--awb-text-color:var(--awb-color2);\"><p>Converter <strong data-start=\"51\" data-end=\"80\">rugosidade superficial Ra (\u00b5m)<\/strong> para <strong data-start=\"84\" data-end=\"95\">Rz (\u00b5m)<\/strong> instantaneamente. Esta ferramenta \u00e9 amplamente utilizada em usinagem CNC, engenharia de precis\u00e3o e especifica\u00e7\u00e3o de acabamento superficial para estimar rapidamente a equival\u00eancia de rugosidade.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:28px;--awb-padding-right:48px;--awb-padding-bottom:47px;--awb-padding-left:40px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:10px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:10px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:10px;--awb-spacing-left-medium:10px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\">    <div class=\"cms-mm-calculator mc-calculator\" data-type=\"ra-rz\">\r\n        <h2>Ra Para Rz<br>Calculadora<\/h2>\r\n\r\n        <div class=\"cms-calc-field\">\r\n            <label><span>RUGOSIDADE SUPERFICIAL RA<\/span> <span class=\"mc-unit-lower\">(\u00b5m)<\/span><\/label>\r\n            <div class=\"cms-input-row\">\r\n                <input\r\n                    type=\"text\"\r\n                    data-field=\"ra\"\r\n                    placeholder=\"Insira Ra\"\r\n                    inputmode=\"decimal\"\r\n                    autocomplete=\"off\"\r\n                >\r\n                <span class=\"cms-unit\">Ra<\/span>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <button type=\"button\" class=\"cms-swap-btn\" data-action=\"swap\" aria-label=\"Alterar o sentido de convers\u00e3o\">\r\n            \u21c5\r\n        <\/button>\r\n\r\n        <div class=\"cms-calc-field\">\r\n            <label><span>RUGOSIDADE SUPERFICIAL RZ<\/span> <span class=\"mc-unit-lower\">(\u00b5m)<\/span><\/label>\r\n            <div class=\"cms-input-row\">\r\n                <input\r\n                    type=\"text\"\r\n                    data-field=\"rz\"\r\n                    placeholder=\"Insira Rz\"\r\n                    inputmode=\"decimal\"\r\n                    autocomplete=\"off\"\r\n                >\r\n                <span class=\"cms-unit\">Rz<\/span>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cms-result-box\" data-result>\r\n            <div class=\"cms-result-line cms-result-primary\">Ra 0 \u00b5m \u2248 Rz 0 \u00b5m<\/div>\r\n            <div class=\"cms-result-line\">Convers\u00e3o aproximada: Rz \u2248 Ra \u00d7 7<\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cms-calc-footer\">\r\n            <div class=\"cms-brand\">\u00a9 CMS TECHNOLOGY<\/div>\r\n            <div class=\"cms-actions\">\r\n                <button type=\"button\" class=\"cms-reset-btn\" data-action=\"reset\">REINICIAR<\/button>\r\n                <button type=\"button\" class=\"cms-copy-btn\" data-action=\"copy\">COPIAR<\/button>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n    <div class=\"fusion-text fusion-text-2\"><p>Nota: A convers\u00e3o de Ra para Rz \u00e9 aproximada. Uma estimativa comumente usada \u00e9 Rz \u2248 Ra \u00d7 7, mas a rela\u00e7\u00e3o real depende do processo de usinagem, material, perfil da superf\u00edcie e padr\u00e3o de medi\u00e7\u00e3o.<\/p>\n<\/div><div class=\"fusion-text fusion-text-3\"><h2 data-section-id=\"xgv4vw\" data-start=\"255\" data-end=\"270\">Resposta r\u00e1pida<\/h2>\n<ul data-start=\"272\" data-end=\"344\">\n<li data-section-id=\"1miya1f\" data-start=\"272\" data-end=\"326\"><strong data-start=\"274\" data-end=\"289\">Rz \u2248 Ra \u00d7 7<\/strong> (aproxima\u00e7\u00e3o comum de engenharia)<\/li>\n<li data-section-id=\"1seyhjv\" data-start=\"327\" data-end=\"344\"><strong data-start=\"329\" data-end=\"344\">Ra \u2248 Rz \u00f7 7<\/strong><\/li>\n<\/ul>\n<p data-start=\"346\" data-end=\"366\">\ud83d\udc49 Refer\u00eancia r\u00e1pida:<\/p>\n<ul data-start=\"367\" data-end=\"446\">\n<li data-section-id=\"4d6a26\" data-start=\"367\" data-end=\"393\">Ra 1,6 \u00b5m \u2248 Rz 11,2 \u00b5m<\/li>\n<li data-section-id=\"b7y2fi\" data-start=\"394\" data-end=\"420\">Ra 3,2 \u00b5m \u2248 Rz 22,4 \u00b5m<\/li>\n<li data-section-id=\"125y834\" data-start=\"421\" data-end=\"446\">Ra 0,8 \u00b5m \u2248 Rz 5,6 \u00b5m<\/li>\n<\/ul>\n<p data-start=\"448\" data-end=\"552\">\u26a0\ufe0f Nota: Esta \u00e9 uma <strong data-start=\"468\" data-end=\"494\">convers\u00e3o aproximada<\/strong>, os valores reais dependem do processo de usinagem e dos padr\u00f5es.<\/p>\n<hr data-start=\"554\" data-end=\"557\" \/>\n<h2 data-section-id=\"yxaasq\" data-start=\"559\" data-end=\"580\">F\u00f3rmula (Ra para Rz)<\/h2>\n<p data-start=\"582\" data-end=\"597\"><strong data-start=\"582\" data-end=\"597\">Rz \u2248 Ra \u00d7 7<\/strong><\/p>\n<p data-start=\"599\" data-end=\"614\"><strong data-start=\"599\" data-end=\"614\">Ra \u2248 Rz \u00f7 7<\/strong><\/p>\n<p data-start=\"616\" data-end=\"653\">\u2714 Exemplo:<br data-start=\"626\" data-end=\"629\" \/>Ra = 2 \u00b5m \u2192 Rz \u2248 14 \u00b5m<\/p>\n<hr data-start=\"655\" data-end=\"658\" \/>\n<h2 data-section-id=\"pjb3tv\" data-start=\"660\" data-end=\"688\">Tabela de Convers\u00e3o de Ra para Rz<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"690\" data-end=\"990\">\n<thead data-start=\"690\" data-end=\"720\">\n<tr data-start=\"690\" data-end=\"720\">\n<th class=\"\" data-start=\"690\" data-end=\"700\" data-col-size=\"sm\">Ra (\u00b5m)<\/th>\n<th class=\"\" data-start=\"700\" data-end=\"720\" data-col-size=\"sm\">Rz (\u00b5m, aprox.)<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"751\" data-end=\"990\">\n<tr data-start=\"751\" data-end=\"780\">\n<td data-start=\"751\" data-end=\"760\" data-col-size=\"sm\">0.2<\/td>\n<td data-col-size=\"sm\" data-start=\"760\" data-end=\"780\">1.4<\/td>\n<\/tr>\n<tr data-start=\"781\" data-end=\"810\">\n<td data-start=\"781\" data-end=\"790\" data-col-size=\"sm\">0.4<\/td>\n<td data-col-size=\"sm\" data-start=\"790\" data-end=\"810\">2.8<\/td>\n<\/tr>\n<tr data-start=\"811\" data-end=\"840\">\n<td data-start=\"811\" data-end=\"820\" data-col-size=\"sm\">0.8<\/td>\n<td data-col-size=\"sm\" data-start=\"820\" data-end=\"840\">5.6<\/td>\n<\/tr>\n<tr data-start=\"841\" data-end=\"870\">\n<td data-start=\"841\" data-end=\"850\" data-col-size=\"sm\">1.6<\/td>\n<td data-col-size=\"sm\" data-start=\"850\" data-end=\"870\">11.2<\/td>\n<\/tr>\n<tr data-start=\"871\" data-end=\"900\">\n<td data-start=\"871\" data-end=\"880\" data-col-size=\"sm\">3.2<\/td>\n<td data-col-size=\"sm\" data-start=\"880\" data-end=\"900\">22.4<\/td>\n<\/tr>\n<tr data-start=\"901\" data-end=\"930\">\n<td data-start=\"901\" data-end=\"910\" data-col-size=\"sm\">6.3<\/td>\n<td data-col-size=\"sm\" data-start=\"910\" data-end=\"930\">44.1<\/td>\n<\/tr>\n<tr data-start=\"931\" data-end=\"960\">\n<td data-start=\"931\" data-end=\"940\" data-col-size=\"sm\">12.5<\/td>\n<td data-col-size=\"sm\" data-start=\"940\" data-end=\"960\">87.5<\/td>\n<\/tr>\n<tr data-start=\"961\" data-end=\"990\">\n<td data-start=\"961\" data-end=\"970\" data-col-size=\"sm\">25<\/td>\n<td data-col-size=\"sm\" data-start=\"970\" data-end=\"990\">175<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"992\" data-end=\"995\" \/>\n<h2 data-section-id=\"j85kk7\" data-start=\"997\" data-end=\"1026\">Como utilizar esta calculadora<\/h2>\n<ol data-start=\"1028\" data-end=\"1161\">\n<li data-section-id=\"1xeh5n9\" data-start=\"1028\" data-end=\"1061\">Insira um valor em <strong data-start=\"1048\" data-end=\"1059\">Ra (\u00b5m)<\/strong><\/li>\n<li data-section-id=\"crb9wy\" data-start=\"1062\" data-end=\"1114\">Obtenha instantaneamente o <strong data-start=\"1095\" data-end=\"1106\">Rz (\u00b5m)<\/strong> valor<\/li>\n<li data-section-id=\"2arddi\" data-start=\"1115\" data-end=\"1161\">aproximado<\/li>\n<\/ol>\n<p data-start=\"1163\" data-end=\"1236\">Ajuste o valor para convers\u00e3o em tempo real<br data-start=\"1201\" data-end=\"1204\" \/>\u2714 Estimativa r\u00e1pida para uso em engenharia<\/p>\n<hr data-start=\"1238\" data-end=\"1241\" \/>\n<h2 data-section-id=\"1gs45up\" data-start=\"1243\" data-end=\"1269\">Aplica\u00e7\u00f5es comuns na engenharia<\/h2>\n<h3 data-section-id=\"huf61d\" data-start=\"1271\" data-end=\"1306\">\u2714 Sem necessidade de c\u00e1lculo manual<\/h3>\n<ul data-start=\"1307\" data-end=\"1371\">\n<li data-section-id=\"1k61uce\" data-start=\"1307\" data-end=\"1371\">Acabamento Superficial em Usinagem CNC <strong data-start=\"1332\" data-end=\"1338\">Ra<\/strong>, Desenhos frequentemente especificam <strong data-start=\"1365\" data-end=\"1371\">Rz<\/strong><\/li>\n<\/ul>\n<h3 data-section-id=\"qv20by\" data-start=\"1373\" data-end=\"1402\">, enquanto a inspe\u00e7\u00e3o pode usar<\/h3>\n<ul data-start=\"1403\" data-end=\"1473\">\n<li data-section-id=\"1r1ouz4\" data-start=\"1403\" data-end=\"1473\">Comunica\u00e7\u00e3o com Fornecedores<\/li>\n<\/ul>\n<h3 data-section-id=\"hwqhsj\" data-start=\"1475\" data-end=\"1509\">Diferentes pa\u00edses e padr\u00f5es usam diferentes par\u00e2metros de rugosidade<\/h3>\n<ul data-start=\"1510\" data-end=\"1576\">\n<li data-section-id=\"1nz858n\" data-start=\"1510\" data-end=\"1576\">Correspond\u00eancia de Capacidade do Processo<\/li>\n<\/ul>\n<h3 data-section-id=\"1sbgpep\" data-start=\"1578\" data-end=\"1615\">Torneamento, fresamento e retifica\u00e7\u00e3o produzem diferentes rela\u00e7\u00f5es Ra\u2013Rz<\/h3>\n<ul data-start=\"1616\" data-end=\"1654\">\n<li data-section-id=\"1ag9nlh\" data-start=\"1616\" data-end=\"1654\">Inspe\u00e7\u00e3o de Qualidade e Padr\u00f5es<\/li>\n<\/ul>\n<hr data-start=\"1656\" data-end=\"1659\" \/>\n<h2 data-section-id=\"cx1t8l\" data-start=\"1661\" data-end=\"1702\">Notas Importantes (Precis\u00e3o de Engenharia)<\/h2>\n<ul data-start=\"1704\" data-end=\"1909\">\n<li data-section-id=\"1tu33en\" data-start=\"1704\" data-end=\"1794\">Compara\u00e7\u00f5es ISO (Ra) vs DIN\/JIS (Rz) <strong data-start=\"1717\" data-end=\"1742\">O fator<\/strong>, 7 \u00e9 uma aproxima\u00e7\u00e3o<br data-start=\"1761\" data-end=\"1764\" \/>\ud83d\udc49 <strong data-start=\"1769\" data-end=\"1792\">, a faixa t\u00edpica \u00e9:<\/strong><\/li>\n<li data-section-id=\"f3b4yn\" data-start=\"1796\" data-end=\"1909\">Rz \u2248 Ra \u00d7 (4 a 10)\n<ul data-start=\"1812\" data-end=\"1909\">\n<li data-section-id=\"150kzk8\" data-start=\"1812\" data-end=\"1864\">Depende de:<\/li>\n<li data-section-id=\"1l0fn17\" data-start=\"1867\" data-end=\"1884\">Tipo de material<\/li>\n<li data-section-id=\"1xg088t\" data-start=\"1887\" data-end=\"1909\">M\u00e9todo de medi\u00e7\u00e3o<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p data-start=\"1911\" data-end=\"1998\">Processo de usinagem (torneamento, retifica\u00e7\u00e3o, polimento) <strong data-start=\"1957\" data-end=\"1984\">\ud83d\udc49 Para aplica\u00e7\u00f5es cr\u00edticas, sempre consulte<\/strong> ou padr\u00f5es.<\/p>\n<hr data-start=\"2000\" data-end=\"2003\" \/>\n<h2 data-section-id=\"1l9glad\" data-start=\"2005\" data-end=\"2027\">Calculadoras relacionadas<\/h2>\n<p data-start=\"2029\" data-end=\"2063\">Melhore seu fluxo de trabalho de engenharia:<\/p>\n<ul data-start=\"2065\" data-end=\"2205\">\n<li data-section-id=\"kwhrde\" data-start=\"2065\" data-end=\"2090\"><strong data-start=\"2067\" data-end=\"2090\">Conversor de Ra para \u00b5in<\/strong><\/li>\n<li data-section-id=\"yvg7az\" data-start=\"2091\" data-end=\"2128\"><strong data-start=\"2093\" data-end=\"2128\">Gr\u00e1fico de Compara\u00e7\u00e3o de Acabamento Superficial<\/strong><\/li>\n<li data-section-id=\"yi53yw\" data-start=\"2129\" data-end=\"2166\"><strong data-start=\"2131\" data-end=\"2166\">Conversor de Toler\u00e2ncia (mm \u2194 polegada)<\/strong><\/li>\n<li data-section-id=\"9ca6r\" data-start=\"2167\" data-end=\"2205\"><strong data-start=\"2169\" data-end=\"2205\">Calculadora da taxa de remo\u00e7\u00e3o de material<\/strong><\/li>\n<\/ul>\n<hr data-start=\"2207\" data-end=\"2210\" \/>\n<h2 data-section-id=\"1hryhf7\" data-start=\"2212\" data-end=\"2218\">Perguntas frequentes<\/h2>\n<h3 data-section-id=\"10irvsq\" data-start=\"2220\" data-end=\"2235\">O que \u00e9 Ra?<\/h3>\n<p data-start=\"2236\" data-end=\"2328\">Ra \u00e9 a <strong data-start=\"2246\" data-end=\"2278\">rugosidade m\u00e9dia aritm\u00e9tica<\/strong>, o par\u00e2metro de acabamento superficial mais comumente utilizado.<\/p>\n<h3 data-section-id=\"10irwch\" data-start=\"2330\" data-end=\"2345\">O que \u00e9 Rz?<\/h3>\n<p data-start=\"2346\" data-end=\"2433\">Rz \u00e9 a <strong data-start=\"2356\" data-end=\"2389\">altura m\u00e9dia pico-vale<\/strong>, representando a textura superficial de forma mais vis\u00edvel.<\/p>\n<h3 data-section-id=\"1ia6q0\" data-start=\"2435\" data-end=\"2460\">Por que converter Ra para Rz?<\/h3>\n<p data-start=\"2461\" data-end=\"2539\">Porque diferentes padr\u00f5es e ind\u00fastrias utilizam diferentes par\u00e2metros de rugosidade.<\/p>\n<h3 data-section-id=\"1egwqaf\" data-start=\"2541\" data-end=\"2571\">Ra \u00d7 7 \u00e9 sempre preciso?<\/h3>\n<p data-start=\"2572\" data-end=\"2639\">N\u00e3o. \u00c9 uma <strong data-start=\"2584\" data-end=\"2613\">aproxima\u00e7\u00e3o de engenharia<\/strong>, n\u00e3o uma convers\u00e3o estrita.<\/p>\n<h3 data-section-id=\"1e9bak0\" data-start=\"2641\" data-end=\"2672\">Quando devo usar Ra vs Rz?<\/h3>\n<ul data-start=\"2673\" data-end=\"2788\">\n<li data-section-id=\"1hgwge3\" data-start=\"2673\" data-end=\"2714\">Utiliza\u00e7\u00e3o <strong data-start=\"2679\" data-end=\"2685\">Ra<\/strong> para especifica\u00e7\u00f5es gerais<\/li>\n<li data-section-id=\"66xwnk\" data-start=\"2715\" data-end=\"2788\">Utiliza\u00e7\u00e3o <strong data-start=\"2721\" data-end=\"2727\">Rz<\/strong> quando a altura pico\/vale \u00e9 cr\u00edtica (ex.: superf\u00edcies de veda\u00e7\u00e3o)<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_3 1_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:8px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:12px;--awb-width-medium:33.333333333333%;--awb-order-medium:0;--awb-spacing-right-medium:8px;--awb-spacing-left-medium:12px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-widget-area awb-widget-area-element fusion-widget-area-1 fusion-content-widget-area\" style=\"--awb-title-size:19px;--awb-title-color:var(--awb-color8);--awb-padding:0px 0px 0px 0px;\"><div id=\"search-4\" class=\"widget widget_search\" 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Por favor, tente novamente mais tarde.<\/span><\/div><button type=\"button\" class=\"close toggle-alert\" data-dismiss=\"alert\" aria-label=\"Close\">\u00d7<\/button><\/div><\/div><\/div><\/div><\/div><\/div><input type=\"hidden\" name=\"fusion_privacy_store_ip_ua\" value=\"true\"><input type=\"hidden\" name=\"trp-form-language\" value=\"pt\"\/><\/form><\/div><\/div>\n\t\t<div id=\"recent-posts-2\" class=\"widget widget_recent_entries\" style=\"border-style: solid;border-color:transparent;border-width:0px;\">\n\t\t<div class=\"heading\"><h4 class=\"widget-title\">Publica\u00e7\u00f5es recentes<\/h4><\/div>\n\t\t<ul>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/1045-vs-4140-steel\/\">A\u00e7o 1045 vs 4140: Como escolher o material certo em termos de resist\u00eancia, vida \u00fatil \u00e0 fadiga e custo de maquinagem<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/automotive-bolts-and-screws-how-to-select-fasteners-for-safety-vibration-resistance-and-long-term-reliability\/\">Parafusos e porcas para a ind\u00fastria autom\u00f3vel: Como selecionar elementos de fixa\u00e7\u00e3o que garantam seguran\u00e7a, resist\u00eancia \u00e0 vibra\u00e7\u00e3o e fiabilidade a longo prazo<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/cnc-machining-aluminum-parts\/\">Maquina\u00e7\u00e3o CNC de pe\u00e7as de alum\u00ednio: como escolher o tipo de alum\u00ednio, o design e a estrat\u00e9gia de fabrico adequados<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/copper-vs-steel\/\">Cobre vs. a\u00e7o: que material deve escolher em termos de condutividade, resist\u00eancia e custo?<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/nickel-plating-stainless-steel\/\">Niquelagem do a\u00e7o inoxid\u00e1vel: quando melhora o desempenho e quando n\u00e3o compensa o custo<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/brass-or-bronze\/\">Lat\u00e3o ou bronze: qual \u00e9 o melhor em termos de resist\u00eancia, resist\u00eancia ao desgaste, prote\u00e7\u00e3o contra a corros\u00e3o e maquinagem CNC?<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/machining-carbon-fiber-parts\/\">Maquina\u00e7\u00e3o de pe\u00e7as em fibra de carbono: custo, qualidade e sele\u00e7\u00e3o do processo<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/metal-strength-chart\/\">Tabela de resist\u00eancia dos metais: Como escolher o material certo<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/polish-polycarbonate-2\/\">Policarbonato polaco: qual \u00e9 o m\u00e9todo que proporciona o melhor acabamento transparente?<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t<a href=\"https:\/\/www.cncmachiningshops.com\/pt\/metal-plating-process\/\">Sele\u00e7\u00e3o do processo de galvaniza\u00e7\u00e3o: como escolher o revestimento adequado<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t<\/div><div class=\"fusion-additional-widget-content\"><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:78px;--awb-padding-bottom:78px;--awb-background-color:var(--awb-color7);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-padding-top:27px;--awb-padding-bottom:18px;--awb-bg-size:cover;--awb-width-large:100%;--awb-flex-grow:0;--awb-flex-shrink:0;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:40px;--awb-width-medium:100%;--awb-order-medium:0;--awb-flex-grow-medium:;--awb-flex-shrink-medium:;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-flex-grow-small:;--awb-flex-shrink-small:;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-center\" style=\"margin:0;text-transform:capitalize;\">Precisa de Pe\u00e7as CNC com Acabamento Superficial de Precis\u00e3o?<\/h2><\/div><div class=\"fusion-text fusion-text-4\" style=\"--awb-content-alignment:left;--awb-text-color:var(--awb-color2);--awb-margin-left:20px;\"><p data-start=\"2845\" data-end=\"2908\">O acabamento superficial impacta diretamente o desempenho, o desgaste e a veda\u00e7\u00e3o.<\/p>\n<p data-start=\"2910\" data-end=\"2922\">\ud83d\udc49 Oferecemos:<\/p>\n<ul data-start=\"2923\" data-end=\"3106\">\n<li data-section-id=\"jum76f\" data-start=\"2923\" data-end=\"2974\">Usinagem CNC com rugosidade superficial controlada<\/li>\n<li data-section-id=\"1jez3ng\" data-start=\"2975\" data-end=\"3030\">Processos de acabamento: retifica\u00e7\u00e3o, polimento, anodiza\u00e7\u00e3o<\/li>\n<li data-section-id=\"1rf6y9c\" data-start=\"3031\" data-end=\"3068\">Ra t\u00e3o baixo quanto <strong data-start=\"3046\" data-end=\"3066\">0,4 \u00b5m ou melhor<\/strong><\/li>\n<li data-section-id=\"10ccxvl\" data-start=\"3069\" data-end=\"3106\">Relat\u00f3rios completos de inspe\u00e7\u00e3o dispon\u00edveis<\/li>\n<\/ul>\n<\/div><div class=\"fusion-text fusion-text-5\" style=\"--awb-content-alignment:center;--awb-font-size:20px;--awb-text-color:var(--awb-color2);\"><p>Envie seu desenho hoje e receba um or\u00e7amento de precis\u00e3o.<\/p>\n<\/div><div style=\"text-align:center;\"><a class=\"fusion-button button-flat button-xlarge button-custom fusion-button-default button-2 fusion-button-span-yes fusion-button-default-type\" style=\"--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color4);--button_gradient_top_color:var(--awb-color4);--button_gradient_bottom_color:var(--awb-color4);--button_gradient_top_color_hover:var(--awb-color8);--button_gradient_bottom_color_hover:var(--awb-color8);\" target=\"_self\" 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This tool is widely used in CNC machining, precision engineering, and surface finish specification to quickly estimate roughness equivalence.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cncmachiningshops.com\/pt\/tools\/surface-roughness-ra-to-rz-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Surface Roughness Ra to Rz Calculator\" \/>\n<meta property=\"og:description\" content=\"Convert surface roughness Ra (\u00b5m) to Rz (\u00b5m) instantly. This tool is widely used in CNC machining, precision engineering, and surface finish specification to quickly estimate roughness equivalence.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cncmachiningshops.com\/pt\/tools\/surface-roughness-ra-to-rz-calculator\/\" \/>\n<meta property=\"og:site_name\" content=\"CNC Machining Shops\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-02T14:12:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cncmachiningshops.com\/wp-content\/uploads\/2022\/11\/CNC-Machined-nylon-parts.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cncmachiningshops.com\\\/tools\\\/surface-roughness-ra-to-rz-calculator\\\/\",\"url\":\"https:\\\/\\\/www.cncmachiningshops.com\\\/tools\\\/surface-roughness-ra-to-rz-calculator\\\/\",\"name\":\"Surface Roughness Ra to Rz Calculator\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cncmachiningshops.com\\\/#website\"},\"datePublished\":\"2026-04-30T10:57:40+00:00\",\"dateModified\":\"2026-05-02T14:12:42+00:00\",\"description\":\"Convert surface roughness Ra (\u00b5m) to Rz (\u00b5m) instantly. 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