{"id":21076,"date":"2026-10-10T06:24:33","date_gmt":"2026-10-10T05:24:33","guid":{"rendered":"https:\/\/metalsradar.com\/glossary\/troy-ounce\/"},"modified":"2026-10-10T06:24:33","modified_gmt":"2026-10-10T05:24:33","slug":"troy-ounce","status":"publish","type":"page","link":"https:\/\/metalsradar.com\/ca\/glossary\/troy-ounce\/","title":{"rendered":"Troy Ounce"},"content":{"rendered":"<div class=\"mrf-gl\"><p class=\"gl-def\">A troy ounce is the unit used to weigh precious metals worldwide and equals 31.1035 grams. It is about 10% heavier than the everyday avoirdupois ounce (28.35 g) used for food and parcels.<\/p><aside class=\"panel gl-live\"><p class=\"gl-live-h\">\ud83c\udde8\ud83c\udde6 Today in Canada<\/p><div class=\"gl-row\"><span>Gold, 1 troy ounce (spot)<\/span><b>5,970 CAD<\/b><\/div><p class=\"gl-src\">Data as of 10.10.2026, updated daily.<\/p><a class=\"btn primary\" href=\"https:\/\/metalsradar.com\/ca\/cheapest-gold-coins\/\">Compare gold coin prices \u203a<\/a><\/aside><div class=\"gl-body\"><p>Canada measures almost everything in metric, but gold and silver are still priced per troy ounce. This entry covers what that means when you compare prices here: fine weight, gross weight and the cost per ounce in CAD.<\/p><h2>Gross weight and fine weight<\/h2><p>What you pay for is the fine weight: the amount of pure metal inside. The gross weight includes any alloy. Two coins that both contain one troy ounce of gold can therefore weigh different amounts on your scale:<\/p><ul><li>The Royal Canadian Mint's <a href=\"\/ca\/product\/1-oz-maple-leaf-gold-coin\/\">1 oz Gold Maple Leaf<\/a> is struck in 99.99% gold and weighs 31.11 g, so gross and fine weight are almost identical.<\/li><li>A South African Krugerrand is 22 karat (91.67% gold). To hold one troy ounce of fine gold it weighs about 33.93 g, with copper making up the rest.<\/li><\/ul><p>Worked example: 33.93 g x 0.9167 = 31.10 g of fine gold, which is one troy ounce. The extra 2.8 g of copper adds hardness, not value. Read more about purity in our entry on <a href=\"fineness}}\">fineness<\/a> and how alloys are expressed in <a href=\"karat}}\">karats<\/a>.<\/p><p>Silver works the same way. The <a href=\"\/ca\/product\/1-oz-maple-leaf-silver-coin\/\">1 oz Silver Maple Leaf<\/a> contains one troy ounce (31.11 g) of 99.99% silver.<\/p><h2>Converting troy ounces to CAD prices<\/h2><p>International <a href=\"spot-price}}\">spot prices<\/a> are quoted in US dollars per troy ounce. Canadian dealers convert that figure into CAD at the current exchange rate, so the Canadian price can move even on a day when the US dollar gold price is flat. If you think in grams, divide the price per troy ounce by 31.1035, or use our <a href=\"\/ca\/charts\/gold-price\/gold-price-per-gram\/\">gold price per gram in CAD<\/a>. For larger holdings, the <a href=\"\/ca\/charts\/gold-price\/gold-price-per-kilogram\/\">gold price per kilogram<\/a> is handy, and silver buyers can follow the <a href=\"\/ca\/charts\/silver-price\/silver-price-per-kilogram\/\">silver price per kilogram<\/a> for 1 kg bars.<\/p><p>Fractional coins are labelled in parts of a troy ounce: 1\/2, 1\/4, 1\/10 and 1\/20 oz. A 1\/10 oz coin holds 3.11 g of gold, but its price per gram is usually higher than a 1 oz coin because minting costs are spread over less metal. That difference is the <a href=\"premium}}\">premium over spot<\/a>, which we rank for every product in our list of the <a href=\"\/ca\/cheapest-gold-coins\/\">cheapest gold coins in Canada<\/a>.<\/p><\/div><h2>Related terms<\/h2><p class=\"gl-chips\"><a class=\"gl-chip\" href=\"https:\/\/metalsradar.com\/ca\/glossary\/fineness\/\">Fineness<\/a> <a class=\"gl-chip\" href=\"https:\/\/metalsradar.com\/ca\/glossary\/spot-price\/\">Spot Price<\/a> <a class=\"gl-chip\" href=\"https:\/\/metalsradar.com\/ca\/glossary\/premium-over-spot\/\">Premium Over Spot<\/a> <a class=\"gl-chip\" href=\"https:\/\/metalsradar.com\/ca\/glossary\/carat\/\">Carat or Karat (Gold Purity)<\/a><\/p><section class=\"mrf-faq\"><h2>FAQ<\/h2><div class=\"faq-list\"><details open><summary><h3>How many grams are in a troy ounce?<\/h3><\/summary><div class=\"a\"><p>One troy ounce equals 31.1035 grams. A 1 oz Gold Maple Leaf, for example, weighs 31.11 g.<\/p><\/div><\/details><details><summary><h3>Is a troy ounce heavier than a normal ounce?<\/h3><\/summary><div class=\"a\"><p>Yes. A troy ounce is about 10% heavier than the avoirdupois ounce of 28.35 g used for everyday goods.<\/p><\/div><\/details><details><summary><h3>Does a 1 oz Krugerrand contain less gold than a 1 oz Maple Leaf?<\/h3><\/summary><div class=\"a\"><p>No. Both contain one troy ounce of fine gold; the Krugerrand is heavier overall because it is a 22 karat alloy with copper.<\/p><\/div><\/details><\/div><\/section><details class=\"gl-src-list\"><summary>Sources<\/summary><ul><li><a href=\"https:\/\/www.mint.ca\/en\/shop\/bullion-products\/2022-50-1-oz-99-99-pure-gold-coin-gml-bullion\" rel=\"nofollow noopener\" target=\"_blank\">Royal Canadian Mint: 1 oz 99.99% pure Gold Maple Leaf bullion coin<\/a><\/li><li><a href=\"https:\/\/www.mint.ca\/en\/shop\/coins\/2026\/2026-sml-1-oz-9999-pure-silver-coin-bullion\" rel=\"nofollow noopener\" target=\"_blank\">Royal Canadian Mint: 2026 Silver Maple Leaf, 1 oz 99.99% pure silver coin<\/a><\/li><li><a href=\"https:\/\/www.lbma.org.uk\/good-delivery\/about-good-delivery\" rel=\"nofollow noopener\" target=\"_blank\">LBMA: About Good Delivery<\/a><\/li><\/ul><\/details><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":0,"parent":21075,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"footnotes":""},"class_list":["post-21076","page","type-page","status-publish","hentry"],"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"","author_link":"https:\/\/metalsradar.com\/ca\/"},"comment_info":0,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/pages\/21076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/comments?post=21076"}],"version-history":[{"count":0,"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/pages\/21076\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/pages\/21075"}],"wp:attachment":[{"href":"https:\/\/metalsradar.com\/ca\/wp-json\/wp\/v2\/media?parent=21076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}