{"id":114,"date":"2026-10-21T10:00:00","date_gmt":"2026-10-21T05:00:00","guid":{"rendered":"https:\/\/www.prias.net\/?page_id=114"},"modified":"2026-10-21T10:00:00","modified_gmt":"2026-10-21T05:00:00","slug":"aql-calculator","status":"publish","type":"page","link":"https:\/\/www.prias.net\/?page_id=114","title":{"rendered":"AQL Calculator"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The AQL Sampling calculator finds your AQL sample size from your lot quantity. It also works out how many pieces to pick per style, colour and size, and how many cartons to open for each.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aql-sampling.web.app\/aql.html\">Open the AQL Calculator<\/a><\/div>\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/play.google.com\/store\/apps\/details?id=app.web.aql_sampling.twa\">Get the Android app<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How the calculator works<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Enter your lot.<\/strong> Add rows manually or upload a packing list or PO (.xlsx, .xls or .csv, up to 5 MB).<\/li><li><strong>Choose inspection level and AQL.<\/strong> General level I, II or III for visual checks, special level S1 to S4 for measurements and tests, with separate AQL values for Major and Minor defects (defaults: Major 2.5, Minor 4.0).<\/li><li><strong>Choose the mode.<\/strong> Combined AQL gives one sample size for the whole lot. AQL per style gives a separate sample size for each style, for separate reports.<\/li><li><strong>Calculate.<\/strong> The sample size comes from the lot size and level in the ANSI\/ASQ Z1.4 (ISO 2859-1) tables, with the Ac\/Re numbers for each defect class.<\/li><li><strong>Spread the sample.<\/strong> The sample is split in proportion across every style, colour and size.<\/li><li><strong>Pick cartons.<\/strong> The number of cartons to open is based on the square root of the total cartons, distributed proportionally. &#8220;Pick Ctns&#8221; shows how many cartons to open per style, and &#8220;Qty\/Ctn&#8221; shows how many pieces to take from each carton to complete the sample size.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Worked example<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lot 20,000 pieces, general level II, Major 2.5, Minor 4.0: sample size 315. Accept up to 14 Major and 21 Minor defects, reject at 15 Major or 22 Minor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other features<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Download results as Excel or CSV, or print<\/li><li>Save calculations on your device and reopen or merge them later<\/li><li>Works offline after the first load, and your data stays on your device<\/li><li>Built-in AQL table and guides<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The calculator is based on MIL-STD-105E, ANSI\/ASQ Z1.4-2008 and ISO 2859-1.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/contact-us\/\">Get a Free Quote<\/a><\/div>\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/contact-us\/#sample-report\">Request Sample Inspection Report<\/a><\/div>\n<\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>The AQL Sampling calculator finds your AQL sample size from your lot quantity. It also works out how many pieces to pick per style, colour and size, and how many cartons to open for each. How the calculator works Enter your lot. Add rows manually or upload a packing list or PO (.xlsx, .xls or&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/www.prias.net\/?page_id=114\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":112,"menu_order":14,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-114","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/pages\/114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prias.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=114"}],"version-history":[{"count":0,"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/pages\/114\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.prias.net\/index.php?rest_route=\/wp\/v2\/pages\/112"}],"wp:attachment":[{"href":"https:\/\/www.prias.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}