Mexican Gold Pesos (5, 10 and 20 Pesos) Melt Value
Pure gold content of the Mexican Gold Pesos (5, 10 and 20 Pesos): 20 pesos 0.4822 oz; 10 pesos 0.2411 oz; 5 pesos 0.1206 oz. At $4,147/oz gold, the 20 pesos is worth about $2,000 in melt value. Dealers quote bullion as a premium or discount to melt.
Values above refresh with the October 19, 2026 spot price.
Mexican Gold Pesos (5, 10 and 20 Pesos) specifications
| Version | Years | Fineness | Gross weight | Pure gold | Diameter | Face value |
|---|---|---|---|---|---|---|
| 20 pesos | 1917–1959 | .900 (90%) | 16.67 g | 15 g (0.4822 oz t) | 27.5 mm | 20 Pesos |
| 10 pesos | 1905–1959 | .900 (90%) | 8.333 g | 7.5 g (0.2411 oz t) | 22.5 mm | 10 Pesos |
| 5 pesos | 1905–1955 | .900 (90%) | 4.167 g | 3.75 g (0.1206 oz t) | 19 mm | 5 Pesos |
Mexico's 20th-century gold pesos use .900 gold. Many common dates (1955 for the 5 pesos, 1959 for the 10 and 20 pesos) are official restrikes, which is why they trade mainly on gold content.
How the melt value is calculated
Melt value = gross weight × fineness ÷ 31.1035 × spot price. For the 20 pesos: 16.67 g × .900 = 15 g of pure gold. Divide by 31.1035 grams per troy ounce to get 0.4822 oz, then multiply by $4,147 spot: about $2,000.
Melt value by quantity
| Quantity | 20 pesos | 10 pesos | 5 pesos |
|---|---|---|---|
| 1 coin | $2,000 | $1,000 | $500.07 |
| 5 coins | $10,000 | $5,000 | $2,500 |
| 10 coins | $20,000 | $10,000 | $5,001 |
| 20 coins | $40,001 | $20,000 | $10,001 |
| 25 coins | $50,001 | $25,001 | $12,502 |
| 100 coins | $200,005 | $100,002 | $50,007 |
Melt value vs collector value
The Mexican Gold Pesos is a bullion coin, so its price tracks the gold spot price. Buyers and sellers usually quote it as a premium over (or a discount to) melt value, and that premium depends on the dealer, the year and the coin's condition. Special and proof versions can sell for more. Melt value is the number to anchor on: it's what the metal alone is worth today.
Related coins
More: Gold melt value explained · How to sell gold and silver coins · How to track a precious metals stack · Free melt calculator · All coin melt values
Specs: Nu Stack coin database (curated entries and the Numista catalog). Melt values use the gold spot price from the Nu Stack price feed and are estimates of metal content only, not offers to buy or sell.
Frequently asked questions
How much gold is in a Mexican Gold Pesos?
20 pesos: 15 g (0.4822 troy oz) of pure gold; 10 pesos: 7.5 g (0.2411 troy oz) of pure gold; 5 pesos: 3.75 g (0.1206 troy oz) of pure gold.
What is a Mexican Gold Pesos worth in melt value today?
At $4,147/oz gold (October 19, 2026): 20 pesos about $2,000; 10 pesos about $1,000; 5 pesos about $500.07. The value moves with the spot price, and this page updates automatically.
Is a Mexican Gold Pesos worth more than its melt value?
Bullion coins usually trade close to melt value plus a dealer premium. Proof, low-mintage or special issues can sell for more. Compare a dealer's quote against the melt value above.