{"id":9130,"date":"2008-07-18T12:42:00","date_gmt":"1999-11-29T20:00:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=9130"},"modified":"2008-07-18T12:42:00","modified_gmt":"1999-11-29T20:00:00","slug":"hyper-v-ram-calculator","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=9130","title":{"rendered":"Hyper-V RAM Calculator"},"content":{"rendered":"<p>This download has been superseded by a newer <a href=\"https:\/\/aidanfinn.com\/?p=10587\" target=\"_self\">Hyper-V Calculator spreadsheet<\/a>.<\/p>\n<p>I&#8217;ve previously <a href=\"http:\/\/joeelway.spaces.live.com\/blog\/cns!2095EAC3772C41DB!873.entry\">discussed<\/a> how RAM is used by Hyper-V in terms of:<\/p>\n<ul>\n<li>The parent partition<\/li>\n<li>Hyper-V services<\/li>\n<li>Drivers<\/li>\n<li>Guest RAM allocation overhead.<\/li>\n<\/ul>\n<p>I&#8217;ve put together an <a href=\"https:\/\/aidanfinn.com\/downloads\/Hyper-VRAMCalculator.xls\" target=\"_blank\">Excel spreadsheet<\/a> that calculates how much RAM is consumed by a VM as you load it onto a host.\u00a0 Using it is easy:<\/p>\n<ol>\n<li>Specify how much RAM is in the physical host machine.<\/li>\n<li>Add each guest VM and enter how much RAM (in GB) you want to allocate to the guest.<\/li>\n<li>The RAM utilised by the guest is calculated and the amount remaining on the host is presented.<\/li>\n<\/ol>\n<p>The numbers you need to enter are highlighted in yellow.<\/p>\n<p>The formula used assumes maximum RAM overhead, i.e. the worst case scenario of 32MB for the first GB and 8MB for each GB after that on a per VM basis.\u00a0 I&#8217;m also allowing 300MB in addition to the 2GB recommended as the reserve for the parent partition.\u00a0 Often, this can be considered a part of the 2GB.\u00a0 You can recalculate things by adding in another line item to specify driver requirements for the parent OS if you want.<\/p>\n<p>EDIT:<\/p>\n<p>I&#8217;ve done some testing on hosts with 32GB RAM and the theory seems to match the practice.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This download has been superseded by a newer Hyper-V Calculator spreadsheet. I&#8217;ve previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I&#8217;ve put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=9130\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Hyper-V RAM Calculator&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_wpcom_ai_launchpad_first_post":false,"footnotes":""},"categories":[20],"tags":[],"class_list":["post-9130","post","type-post","status-publish","format-standard","hentry","category-hyper-v"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I&#039;ve previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I&#039;ve put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"AFinn\"\/>\n\t<meta name=\"google-site-verification\" content=\"TDKjbi2McB2eLIfL6KwPB3aQqv5E-mbcb2QYIcovGaI\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/aidanfinn.com\/?p=9130\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_GB\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Aidan Finn, IT Pro - A blog covering Azure, Hyper-V, Windows Server, desktop, systems management, deployment, and so on ...\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Hyper-V RAM Calculator | Aidan Finn, IT Pro\" \/>\n\t\t<meta property=\"og:description\" content=\"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I&#039;ve previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I&#039;ve put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/aidanfinn.com\/?p=9130\" \/>\n\t\t<meta property=\"article:published_time\" content=\"1999-11-29T20:00:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"1999-11-29T20:00:00+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@joe_elway\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Hyper-V RAM Calculator | Aidan Finn, IT Pro\" \/>\n\t\t<meta name=\"twitter:description\" content=\"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I&#039;ve previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I&#039;ve put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a\" \/>\n\t\t<meta name=\"twitter:creator\" content=\"@joe_elway\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#article\",\"name\":\"Hyper-V RAM Calculator | Aidan Finn, IT Pro\",\"headline\":\"Hyper-V RAM Calculator\",\"author\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?author=1#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#person\"},\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#articleImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"AFinn\"},\"datePublished\":\"2008-07-18T12:42:00+01:00\",\"dateModified\":\"2008-07-18T12:42:00+01:00\",\"inLanguage\":\"en-GB\",\"commentCount\":1,\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#webpage\"},\"articleSection\":\"Hyper-V\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/aidanfinn.com\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?cat=20#listItem\",\"name\":\"Hyper-V\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?cat=20#listItem\",\"position\":2,\"name\":\"Hyper-V\",\"item\":\"https:\\\/\\\/aidanfinn.com\\\/?cat=20\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#listItem\",\"name\":\"Hyper-V RAM Calculator\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#listItem\",\"position\":3,\"name\":\"Hyper-V RAM Calculator\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?cat=20#listItem\",\"name\":\"Hyper-V\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#person\",\"name\":\"AFinn\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#personImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"AFinn\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?author=1#author\",\"url\":\"https:\\\/\\\/aidanfinn.com\\\/?author=1\",\"name\":\"AFinn\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"AFinn\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#webpage\",\"url\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130\",\"name\":\"Hyper-V RAM Calculator | Aidan Finn, IT Pro\",\"description\":\"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I've previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I've put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a\",\"inLanguage\":\"en-GB\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?p=9130#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?author=1#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/?author=1#author\"},\"datePublished\":\"2008-07-18T12:42:00+01:00\",\"dateModified\":\"2008-07-18T12:42:00+01:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#website\",\"url\":\"https:\\\/\\\/aidanfinn.com\\\/\",\"name\":\"Aidan Finn, IT Pro\",\"description\":\"A blog covering Azure, Hyper-V, Windows Server, desktop, systems management, deployment, and so on ...\",\"inLanguage\":\"en-GB\",\"publisher\":{\"@id\":\"https:\\\/\\\/aidanfinn.com\\\/#person\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Hyper-V RAM Calculator | Aidan Finn, IT Pro","description":"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I've previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I've put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a","canonical_url":"https:\/\/aidanfinn.com\/?p=9130","robots":"max-image-preview:large","keywords":"","webmasterTools":{"google-site-verification":"TDKjbi2McB2eLIfL6KwPB3aQqv5E-mbcb2QYIcovGaI","miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/aidanfinn.com\/?p=9130#article","name":"Hyper-V RAM Calculator | Aidan Finn, IT Pro","headline":"Hyper-V RAM Calculator","author":{"@id":"https:\/\/aidanfinn.com\/?author=1#author"},"publisher":{"@id":"https:\/\/aidanfinn.com\/#person"},"image":{"@type":"ImageObject","@id":"https:\/\/aidanfinn.com\/?p=9130#articleImage","url":"https:\/\/secure.gravatar.com\/avatar\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g","width":96,"height":96,"caption":"AFinn"},"datePublished":"2008-07-18T12:42:00+01:00","dateModified":"2008-07-18T12:42:00+01:00","inLanguage":"en-GB","commentCount":1,"mainEntityOfPage":{"@id":"https:\/\/aidanfinn.com\/?p=9130#webpage"},"isPartOf":{"@id":"https:\/\/aidanfinn.com\/?p=9130#webpage"},"articleSection":"Hyper-V"},{"@type":"BreadcrumbList","@id":"https:\/\/aidanfinn.com\/?p=9130#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/#listItem","position":1,"name":"Home","item":"https:\/\/aidanfinn.com\/","nextItem":{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/?cat=20#listItem","name":"Hyper-V"}},{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/?cat=20#listItem","position":2,"name":"Hyper-V","item":"https:\/\/aidanfinn.com\/?cat=20","nextItem":{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/?p=9130#listItem","name":"Hyper-V RAM Calculator"},"previousItem":{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/?p=9130#listItem","position":3,"name":"Hyper-V RAM Calculator","previousItem":{"@type":"ListItem","@id":"https:\/\/aidanfinn.com\/?cat=20#listItem","name":"Hyper-V"}}]},{"@type":"Person","@id":"https:\/\/aidanfinn.com\/#person","name":"AFinn","image":{"@type":"ImageObject","@id":"https:\/\/aidanfinn.com\/?p=9130#personImage","url":"https:\/\/secure.gravatar.com\/avatar\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g","width":96,"height":96,"caption":"AFinn"}},{"@type":"Person","@id":"https:\/\/aidanfinn.com\/?author=1#author","url":"https:\/\/aidanfinn.com\/?author=1","name":"AFinn","image":{"@type":"ImageObject","@id":"https:\/\/aidanfinn.com\/?p=9130#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/65fde4aa9f2ab1cf1514ae320a37ec682d9398ce5791d3c2dd1e8670a71ceea0?s=96&d=mm&r=g","width":96,"height":96,"caption":"AFinn"}},{"@type":"WebPage","@id":"https:\/\/aidanfinn.com\/?p=9130#webpage","url":"https:\/\/aidanfinn.com\/?p=9130","name":"Hyper-V RAM Calculator | Aidan Finn, IT Pro","description":"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I've previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I've put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a","inLanguage":"en-GB","isPartOf":{"@id":"https:\/\/aidanfinn.com\/#website"},"breadcrumb":{"@id":"https:\/\/aidanfinn.com\/?p=9130#breadcrumblist"},"author":{"@id":"https:\/\/aidanfinn.com\/?author=1#author"},"creator":{"@id":"https:\/\/aidanfinn.com\/?author=1#author"},"datePublished":"2008-07-18T12:42:00+01:00","dateModified":"2008-07-18T12:42:00+01:00"},{"@type":"WebSite","@id":"https:\/\/aidanfinn.com\/#website","url":"https:\/\/aidanfinn.com\/","name":"Aidan Finn, IT Pro","description":"A blog covering Azure, Hyper-V, Windows Server, desktop, systems management, deployment, and so on ...","inLanguage":"en-GB","publisher":{"@id":"https:\/\/aidanfinn.com\/#person"}}]},"og:locale":"en_GB","og:site_name":"Aidan Finn, IT Pro - A blog covering Azure, Hyper-V, Windows Server, desktop, systems management, deployment, and so on ...","og:type":"article","og:title":"Hyper-V RAM Calculator | Aidan Finn, IT Pro","og:description":"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I've previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I've put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a","og:url":"https:\/\/aidanfinn.com\/?p=9130","article:published_time":"1999-11-29T20:00:00+00:00","article:modified_time":"1999-11-29T20:00:00+00:00","twitter:card":"summary","twitter:site":"@joe_elway","twitter:title":"Hyper-V RAM Calculator | Aidan Finn, IT Pro","twitter:description":"This download has been superseded by a newer Hyper-V Calculator spreadsheet. I've previously discussed how RAM is used by Hyper-V in terms of: The parent partition Hyper-V services Drivers Guest RAM allocation overhead. I've put together an Excel spreadsheet that calculates how much RAM is consumed by a VM as you load it onto a","twitter:creator":"@joe_elway"},"aioseo_meta_data":{"post_id":"9130","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2020-12-21 03:53:13","updated":"2025-06-04 12:03:58","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/aidanfinn.com\/\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/aidanfinn.com\/?cat=20\" title=\"Hyper-V\">Hyper-V<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tHyper-V RAM Calculator\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/aidanfinn.com\/"},{"label":"Hyper-V","link":"https:\/\/aidanfinn.com\/?cat=20"},{"label":"Hyper-V RAM Calculator","link":"https:\/\/aidanfinn.com\/?p=9130"}],"amp_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/9130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9130"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/9130\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}