What is calculated
Each coin reference uses the standard fine-metal troy-ounce content for the specified issue. The calculator multiplies the entered quantity by that content and the visitor-entered silver or gold spot price. We request indicative USD spot prices from Gold API (gold-api.com) in the browser when available, retaining their source timestamps. You can override either metal price. If a quote cannot be fetched, illustrative defaults or your last manual inputs are labeled; never treat them as current prices.
Market data and timestamps
For price lookups we use Gold API /price/XAG and /price/XAU endpoints. Quotes are indicative USD per fine troy ounce, not executable bids. The displayed source timestamp is more informative than the moment the website was loaded; a weekend or unavailable feed can leave an older quote. Values can be independently overridden.
Common silver specifications
| Coin | Fine silver (troy oz) | Important qualification |
|---|---|---|
| 1964 Kennedy Half Dollar | 0.36169 | 90% silver |
| 1965–1970 Kennedy Half Dollar | 0.14790 | 40% silver clad |
| Morgan Silver Dollar | 0.77340 | 90% silver |
| Peace Silver Dollar | 0.77340 | 90% silver |
| 1932–1964 Washington Quarter | 0.18084 | 90% silver |
| Mercury Dime | 0.07234 | 90% silver |
| 1946–1964 Roosevelt Dime | 0.07234 | 90% silver |
| Franklin Half Dollar | 0.36169 | 90% silver |
| Walking Liberty Half Dollar | 0.36169 | 90% silver |
| Barber Dime | 0.07234 | 90% silver |
| Standing Liberty Quarter | 0.18084 | 90% silver |
| Barber Quarter | 0.18084 | 90% silver |
| Barber Half Dollar | 0.36169 | 90% silver |
| 1942–1945 War Nickel | 0.05626 | 35% silver |
| 1971–1976 Silver Eisenhower Dollar | 0.31610 | 40% silver (select issues) |
| American Silver Eagle | 1.00000 | 1.0000 oz fine silver |
Face-value trading conventions
The 90% face-value calculator offers two separate assumptions: 0.7234 fine troy ounces per $1 face for approximate standard mint-weight content of common 90% dimes, quarters and half dollars, and 0.715 fine troy ounces per $1 face as a conventional circulated-lot allowance. These are not interchangeable with silver dollar or 40% half-dollar calculations.
Sources consulted
- NGC — U.S. silver coin melt values ↗
- U.S. Mint — coin specifications ↗
- U.S. Mint — American Gold Eagle ↗
- Money Metals — silver content explanation ↗
- PCGS CoinFacts — coin variety and collector reference ↗
What is deliberately not implied
- No claim that the default prices are live, guaranteed or executable.
- No guarantee of actual worn coin weight, purity or authenticity.
- No published collector-price estimate for a particular grade or variety.
- No guarantee that a dealer bid matches calculated melt value.
- No implication that editorial illustrations accurately depict real coin designs.
Corrections
If you find a specification error or an important issue distinction missing, contact the reference desk with the source and coin details. We favor verifiable updates over mass-produced price claims.