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20 g Gold Bars
Number of products: 14The 20 g bar is the one that shares its outline with the one-ounce bar. Argor-Heraeus presses both on a 40.4 × 23.3 mm footprint and separates them by thickness alone: 1.2 mm at 20 g, 1.9 mm at one ounce. Metalor does the same thing on a 24 × 41 mm face.
If you are comparing photographs rather than specifications, this is the pair that catches people out — the two look identical until you read the stamp.
How big a 20 g gold bar actually is
Twenty grams is 0.643 of a troy ounce — just under two thirds. The bar is still comfortably card-sized and still ships sealed. The table gives published producer specifications rather than current stock.
| Refiner or standard | Dimensions | Form | Packaging |
|---|---|---|---|
| Argor-Heraeus | 40.4 × 23.3 × 1.2 mm | minted | blister + assay card |
| Umicore | 39 × 22 × approx. 1.3 mm | minted | sealed blister |
| Metalor | 24 × 41 mm | minted | blister, six-digit serial, DataMatrix code |
Metalor adds a DataMatrix code from 20 g upwards, so this is the lightest weight at which its bars carry a machine-readable identifier as well as a printed serial number.
Twenty grams or one ounce
These two weights sit 11 g apart and compete directly. The ounce is the unit gold is quoted in, which makes the arithmetic simple and the resale conversation shorter. Twenty grams is the metric equivalent, a lower cash outlay, and in most listings a slightly higher premium per gram than the one-ounce bar.
Neither is better metal — both are 999.9. What differs is the arithmetic: an ounce quote applies to the 1 oz bar directly, while a 20 g bar needs the 0.643 conversion every time you compare a price.
Refiners in this weight
Valcambi, PAMP, Argor-Heraeus, C.Hafner, Umicore, Perth Mint, the Royal Mint, Rand Refinery and Münze Österreich, plus the Argor-Heraeus Kinebar. Valcambi, PAMP, Argor-Heraeus, C.Hafner, Umicore, the Perth Mint and Rand Refinery all appear on the LBMA Good Delivery list for gold. The Royal Mint and Münze Österreich do not appear on it — they are mints rather than accredited refineries, and Münze Österreich states outright that its bars are produced by Argor-Heraeus or PAMP. The accreditation belongs to the refinery and its assay process, not to an individual bar, and the LBMA issues no certificate to a retail buyer.
What you actually pay
Metal value for 20 g at the market price, plus premium, plus our margin. The premium at this weight is already well below what the gram and two-gram formats carry, and still above the 100 g level. Current figures track the market on the gold price page.
Questions buyers ask about this weight
How much is a 20 g gold bar worth?
Twenty times the gold price per gram plus the premium on that bar. Twenty grams is roughly 0.643 troy ounces, so if you are working from an ounce quote you need to convert before comparing.
How big is a 20 g gold bar?
40.4 × 23.3 × 1.2 mm at Argor-Heraeus and 39 × 22 mm at about 1.3 mm thick at Umicore. Metalor uses a 24 × 41 mm face.
Why does it look the same as a 1 oz bar?
Because at several refineries it is the same footprint. Argor-Heraeus and Metalor press 20 g and 1 oz on identical faces and vary only the thickness — 1.2 mm against 1.9 mm at Argor-Heraeus.
What is the difference between 20 g and 1 oz?
Metal content: 20 g against 31.1035 g. The ounce matches the unit gold is quoted in, so no conversion is needed; the 20 g bar holds 0.643 oz and costs less in absolute terms. At Argor-Heraeus the two share the same 40.4 × 23.3 mm face and differ only in thickness.
Do you buy 20 g bars back?
Yes, priced against the market at the time of sale. See the buyback page.
Other gold bar weights
0.5 g · 1 g · 2 g · 2.5 g · 5 g · 10 g · 1 oz · 50 g · 100 g · 250 g · 500 g · 1 kg
All weights are listed together on the gold bars page. For coin formats in the same metal, see gold coins.
