Coin weight calculator
U.S. Mint weights: penny 2.5 g, nickel 5 g, dime 2.268 g, quarter 5.67 g, half dollar 11.34 g, dollar coin 8.1 g.
Weigh one kind of coin at a time; a mixed jar cannot be counted by weight alone.
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
| Coin | Weight | Weight (oz) | Coins per pound | Value of a pound |
|---|---|---|---|---|
| Penny | 2.5 g | 0.088 oz | 181.4 | $1.81 |
| Nickel | 5 g | 0.176 oz | 90.7 | $4.54 |
| Dime | 2.268 g | 0.08 oz | 200 | $20 |
| Quarter | 5.67 g | 0.2 oz | 80 | $20 |
| Half Dollar | 11.34 g | 0.4 oz | 40 | $20 |
| Dollar Coin | 8.1 g | 0.286 oz | 56 | $56 |
Use the first mode to find how much a number of coins weighs. Use the second to turn a weight in grams, ounces, pounds or kilograms into a number of coins and their dollar value, which is how a jar or bag of one kind of coin is counted. Counts are rounded to whole coins.
All weights are the U.S. Mint specifications for circulating coins. A pound is 453.59237 g and an ounce 28.349523125 g. For a single coin, see its own page, such as how much a quarter weighs or how many pennies make a pound.
Frequently asked questions
How much does a quarter weigh?
5.67 grams (U.S. Mint).
How much does a penny weigh?
2.5 grams (U.S. Mint).
How many pennies are in a pound?
About 181.4, from 453.59 g divided by 2.5 g.
Can I count a mixed jar of coins by weight?
No. Each coin weighs something different, so weigh one kind at a time.
Sources: U.S. Mint, Coin Specifications. Checked 2026-11-12. Figures described as "about" or "roughly" are arithmetic on these sources.
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General information only. Weights, sizes and counts come from the sources shown on each page and may change; check with your bank or the issuer before you rely on them. Nothing here is financial advice.