{"id":98,"date":"2025-07-15T13:34:47","date_gmt":"2025-07-15T13:34:47","guid":{"rendered":"https:\/\/functiontranslator.com\/2021\/02\/12\/cos\/"},"modified":"2021-02-13T11:33:13","modified_gmt":"2021-02-13T11:33:13","slug":"cos","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/en\/cos\/","title":{"rendered":"COS"},"content":{"rendered":"

Welcome to this tutorial on how to use the COS function in both Microsoft Excel and Google Sheets. The COS function calculates the cosine of an angle provided in radians.<\/p>\n

Syntax:<\/h2>\n

The syntax for the COS function is consistent across both Excel and Google Sheets:<\/p>\n

COS(number)<\/code><\/pre>\n
    \n
  • number<\/code>: The angle in radians for which you need to compute the cosine.<\/li>\n<\/ul>\n
    Excel and Google Sheets Examples:<\/h2>\n
    Let’s explore several examples to understand how the COS function operates in Excel and Google Sheets:<\/p>\n
    Example 1:<\/h3>\n
    Calculate the cosine of an angle in radians.<\/p>\n\n\n\n\n\n
    Angle (radians)<\/th>\nCOS Value<\/th>\n<\/tr>\n
    1<\/td>\n=COS(1)<\/td>\n<\/tr>\n
    0.5<\/td>\n=COS(0.5)<\/td>\n<\/tr>\n
    -1<\/td>\n=COS(-1)<\/td>\n<\/tr>\n<\/table>\n
    In Excel and Google Sheets, simply input the formula =COS(angle)<\/code> in a cell to compute the cosine of a specified angle in radians.<\/p>\n
    Example 2:<\/h3>\n
    Calculate the cosine of multiple angles at once.<\/p>\n\n\n\n\n\n
    Angle (radians)<\/th>\nCOS Value<\/th>\n<\/tr>\n
    1<\/td>\n=COS(A2)<\/td>\n<\/tr>\n
    0.5<\/td>\n=COS(A3)<\/td>\n<\/tr>\n
    -1<\/td>\n=COS(A4)<\/td>\n<\/tr>\n<\/table>\n
    Here, place the angles in a single column (for instance, column A) and apply the formula =COS(A2)<\/code> to calculate the cosine for each angle listed in Excel or Google Sheets.<\/p>\n
    Example 3:<\/h3>\n
    Using the COS function in a mathematical expression.<\/p>\n
    =COS(PI()\/4)<\/code><\/pre>\n
    This calculates the cosine of \u03c0\/4 radians, a frequent operation in both straightforward and complex trigonometric calculations.<\/p>\n
    The above examples illustrate how the COS function can be effectively used in Excel and Google Sheets for calculating the cosine of angles in radians, offering valuable assistance in trigonometric analyses carried out within spreadsheets.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Returns the cosine of a number<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[],"class_list":["post-98","post","type-post","status-publish","format-standard","hentry","category-math-and-trigonometry"],"acf":[],"yoast_head":"\nExcel COS Function \u2013 How It Works, Formula Examples and Syntax<\/title>\n<meta name=\"description\" content=\"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/functiontranslator.com\/en\/cos\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Excel COS Function \u2013 How It Works, Formula Examples and Syntax\" \/>\n<meta property=\"og:description\" content=\"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/functiontranslator.com\/en\/cos\/\" \/>\n<meta property=\"og:site_name\" content=\"Function Translator\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-15T13:34:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-13T11:33:13+00:00\" \/>\n<meta name=\"author\" content=\"glavadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Excel COS Function \u2013 How It Works, Formula Examples and Syntax\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"glavadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/functiontranslator.com\/en\/cos\/\",\"url\":\"https:\/\/functiontranslator.com\/en\/cos\/\",\"name\":\"Excel COS Function \u2013 How It Works, Formula Examples and Syntax\",\"isPartOf\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\"},\"datePublished\":\"2025-07-15T13:34:47+00:00\",\"dateModified\":\"2021-02-13T11:33:13+00:00\",\"author\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\"},\"description\":\"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.\",\"breadcrumb\":{\"@id\":\"https:\/\/functiontranslator.com\/en\/cos\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/functiontranslator.com\/en\/cos\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/functiontranslator.com\/en\/cos\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Function Excel\",\"item\":\"https:\/\/functiontranslator.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Math and trigonometry\",\"item\":\"https:\/\/functiontranslator.com\/en\/math-and-trigonometry\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"COS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\",\"url\":\"https:\/\/functiontranslator.com\/no\/\",\"name\":\"Function Translator\",\"description\":\"Excel function translator\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/functiontranslator.com\/no\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\",\"name\":\"glavadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"caption\":\"glavadmin\"},\"sameAs\":[\"https:\/\/functiontranslator.com\"],\"url\":\"https:\/\/functiontranslator.com\/en\/author\/glavadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Excel COS Function \u2013 How It Works, Formula Examples and Syntax","description":"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/functiontranslator.com\/en\/cos\/","og_locale":"en_US","og_type":"article","og_title":"Excel COS Function \u2013 How It Works, Formula Examples and Syntax","og_description":"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.","og_url":"https:\/\/functiontranslator.com\/en\/cos\/","og_site_name":"Function Translator","article_published_time":"2025-07-15T13:34:47+00:00","article_modified_time":"2021-02-13T11:33:13+00:00","author":"glavadmin","twitter_card":"summary_large_image","twitter_title":"Excel COS Function \u2013 How It Works, Formula Examples and Syntax","twitter_misc":{"Written by":"glavadmin","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/functiontranslator.com\/en\/cos\/","url":"https:\/\/functiontranslator.com\/en\/cos\/","name":"Excel COS Function \u2013 How It Works, Formula Examples and Syntax","isPartOf":{"@id":"https:\/\/functiontranslator.com\/no\/#website"},"datePublished":"2025-07-15T13:34:47+00:00","dateModified":"2021-02-13T11:33:13+00:00","author":{"@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389"},"description":"Learn what the Excel COS function does. Clear syntax explanation and useful formula examples.","breadcrumb":{"@id":"https:\/\/functiontranslator.com\/en\/cos\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/functiontranslator.com\/en\/cos\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/functiontranslator.com\/en\/cos\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Function Excel","item":"https:\/\/functiontranslator.com\/en\/"},{"@type":"ListItem","position":2,"name":"Math and trigonometry","item":"https:\/\/functiontranslator.com\/en\/math-and-trigonometry\/"},{"@type":"ListItem","position":3,"name":"COS"}]},{"@type":"WebSite","@id":"https:\/\/functiontranslator.com\/no\/#website","url":"https:\/\/functiontranslator.com\/no\/","name":"Function Translator","description":"Excel function translator","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/functiontranslator.com\/no\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389","name":"glavadmin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","caption":"glavadmin"},"sameAs":["https:\/\/functiontranslator.com"],"url":"https:\/\/functiontranslator.com\/en\/author\/glavadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/posts\/98","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":3,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":2989,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/posts\/98\/revisions\/2989"}],"wp:attachment":[{"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/functiontranslator.com\/en\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}