10 oz gold bar: price, size and premiums

The 10 oz bar is the workhorse of North American and Australian bullion buyers. It sits between the 100 g bar and the kilo, holds a little over 311 g of gold and, at October 2026 prices, costs around US$42,000. Its appeal is simple: a premium close to that of a kilo bar, in a bar a third of the size. This page sets out the refiners' dimensions, the live value, the prices we captured on 12 October 2026, how the cost per gram changes by size and where the 10 oz bar fits.

How big is a 10 oz gold bar?

Smaller than most people expect. Gold is so dense that 311 g fits in a block you can close your fingers around. The shape depends on whether the bar is cast (poured into a mould) or minted (stamped from a rolled strip and polished).

The Perth Mint quotes the largest possible measurements within its tolerances, so individual bars can be slightly smaller. Compare all weights in our gold bar sizes guide.

The cast bar is 17 mm thick, nearly twice the minted bar's 9.40 mm, but much shorter and narrower. That compact shape makes cast bars cheaper to produce and easy to stack in a vault. Minted bars give a larger, flatter face for a design and are usually sold sealed with an assay card. More on the two methods in cast vs minted bars.

What is a 10 oz gold bar worth today?

Its gold value is ten times the live spot price, the wholesale price of one troy ounce of gold.

Spot-based melt values, not dealer prices. Last updated: Loading.

What did 10 oz gold bars cost on 12 October 2026?

Our automated check opened each product page between 07:33 and 07:35 UTC on Monday 12 October 2026 and read the price for a single bar at the cheapest payment method shown. We compared each price with the gold-api.com spot price at the same moment. The premium is how much more than the gold value you pay.

Spot used (gold-api.com): C$5,968.56, A$5,994.52 and US$4,186.10 per troy ounce. Premium = price / (10 x spot) - 1. Times: Perth Mint 07:33, Gold Stock Canada 07:34, APMEX 07:34 UTC. Paying by card cost more: C$62,934.93 at Gold Stock Canada and US$45,475.93 at APMEX. Follow-up checks: premium tracker.

Payment method matters on a bar this size. At APMEX, paying by card or PayPal instead of check or wire added US$1,819.03, more than the whole premium. At the Perth Mint, the minted Kangaroo bar cost A$176.02 more than the cast bar for identical gold. APMEX's Valcambi bar was the most expensive here, which is why it pays to compare dealers rather than assume a big bar is always cheap. See gold premiums explained.

See 10 oz bars at Gold Stock Canada

Is a 10 oz bar cheaper per gram than other sizes?

Often, but not always. The fair comparison is the same dealer at different weights. The table converts each price into the cost per gram of gold.

Premium over spot in brackets. 10 oz prices from this page. Other figures from our checks published in the 100 gram and 1 kg guides on 12 October 2026, and the Perth Mint cast 1 oz bar on 11 October 2026. Gold Stock Canada's 100 g bar was an Ontario Mint Corp bar; APMEX's 100 g bar was Valcambi and its kilo was a Perth Mint cast bar.

The Perth Mint shows the textbook pattern: the cost per gram falls steadily from 1 oz to 10 oz, though by less than one percentage point in total, because its cast bars are already cheap. The other two dealers break the pattern. At Gold Stock Canada and APMEX, the 10 oz bar cost more per gram than the 100 g bar we checked the same morning. The lesson is that brand, stock and dealer pricing can outweigh size. Check the per-gram price of the exact bar on offer. Our best gold bars to buy guide covers brands and sizes together.

Should you buy one 10 oz bar or ten 1 oz bars?

A middle path some buyers take is a mix: a 10 oz bar for the bulk of their gold and a few 1 oz bars or coins for flexibility.

Who is a 10 oz gold bar right for?

• Good fit: North American and Australian buyers putting roughly US$40,000 or more into gold who want a low premium without going to a kilo.
• Good fit: buyers using vault storage, where cast 10 oz bars stack neatly.
• Good fit (US, Canada): retirement account buyers. APMEX states its Valcambi 10 oz bar is eligible for precious metals IRAs, and Gold Stock Canada says its bars meet CRA requirements for self-directed RRSP and TFSA accounts. Check with your account provider.
• Less ideal: UK buyers. Few UK dealers sell 10 oz gold bars, bars are liable to Capital Gains Tax, and Britannia and Sovereign coins are exempt.
• Less ideal: anyone who may need to sell small amounts.

How are 10 oz gold bars taxed in each country?

General information, not tax advice. Country guides: US gold tax, Canada gold tax, Australia gold tax and UK gold tax.

How do you check, store and sell a 10 oz bar?

1. Match the serial number on the bar to its certificate or assay card, and keep your invoice. APMEX notes its Valcambi bar comes in a plastic capsule that can be opened. See what an assay card is.
2. Measure and weigh it. Check length, width and thickness against the refiner's figures above, and weigh it on a scale reading to 0.01 g. A fake rarely matches all four. See how to tell if gold is real.
3. Plan storage. At this value, check your home insurance limit or compare vaults in the gold storage guide.
4. Get several buyback quotes. Dealers buy 10 oz bars below spot, and the gap varies. Our guide to selling gold bars explains how to compare offers.

See 10 oz gold bars at APMEX

Browse other weights and refiners in all gold bar guides, including the 5 oz bar and 250 gram bar. This page is information, not financial advice. Gold prices can fall as well as rise.

Not financial advice. GoldVetted provides general information to help you compare options. It is not personal financial, tax or legal advice. Gold prices go down as well as up, and you may get back less than you pay. Check tax rules with the official source or a qualified adviser before you act.