Gold Coin Calculator — American Eagle, Maple Leaf, Krugerrand & More
Quickly estimate gold coin value for popular 1 oz and fractional American Gold Eagles, Canadian Maple Leafs, Krugerrands, Britannias, and Gold Buffalos. We load official-style gross weights and karats so the math matches how refiners think about gold content—not rarity or slab grades.
Spot-derived 24K reference ≈ $150.35/g · Apr 3, 2026, 12:00 AM
How to use: choose a coin. We load gross weight and karat so the calculator matches industry melt-style math for gold content. Numismatic premium (collector value) is not included—this is metal value only.
Always verify year and series: older coins can have different specs. When in doubt, weigh your coin and match the closest denomination.
| Coin | Region | Weight (g) | Karat | |
|---|---|---|---|---|
| American Gold Eagle 1 oz US Mint. 1 troy oz fine gold in a 22K crown; total mass ~33.93 g. | United States | 33.93 | 22K | |
| American Gold Eagle 1/2 oz Contains 1/2 troy oz fine gold. | United States | 16.96 | 22K | |
| American Gold Eagle 1/4 oz Contains 1/4 troy oz fine gold. | United States | 8.483 | 22K | |
| American Gold Eagle 1/10 oz Contains 1/10 troy oz fine gold. | United States | 3.393 | 22K | |
| Canadian Maple Leaf 1 oz Royal Canadian Mint. 9999 fine; 1 troy oz. | Canada | 31.10 | 24K | |
| South African Krugerrand 1 oz Same fine-gold content model as the 1 oz Eagle. | South Africa | 33.93 | 22K | |
| British Britannia 1 oz (modern .9999) Modern 1 oz Britannias are 999.9 fine; older issues may differ. | United Kingdom | 31.10 | 24K | |
| American Gold Buffalo 1 oz US Mint 24K 1 troy oz coin. | United States | 31.10 | 24K |
Gold Value Calculator
Adjust this price to project a future value. 24K per troy oz.
American Gold Eagle vs Canadian Maple Leaf
The Gold Eagle family (1 oz, 1/2, 1/4, 1/10) uses a 22 karat crown alloy: each coin still contains its stated fine gold content, with a bit of copper and silver for hardness. The Maple Leaf is traditionally 9999 fine—for calculator purposes we treat that as 24K fine gold in one troy ounce.
That is why a 1 oz Eagle row shows ~33.9 g total weight at 22K, while a 1 oz Maple shows ~31.1 g at 24K: both target one troy ounce of gold, packaged differently.
Krugerrand and other 22K one-ounce coins
The South African Krugerrand follows the same fine-gold-in-22K model as the Eagle. If your stack includes British sovereigns, other national issues, or pre-1933 US gold, always confirm weight and fineness—our table focuses on the most searched modern bullion products (0 presets).
Melt value vs dealer buy prices
Dealers paying cash for bullion often quote near spot on common coins, but spreads still exist. Use this gold coin calculator as a baseline, then compare bids. For jewelry mixed with coins, see gold jewelry value calculator and gold price per ounce.
FAQ
⚠️ Melt estimates only. Verify coin type and year; consult professionals for collectible or legal-tender questions.