The short answer: A typical coin, such as a US quarter, weighs about 5.67 grams (0.20 oz). Other coins range from roughly 2 grams to over 10 grams depending on size and metal.
Coin weight by type
Coin weight varies widely by denomination, country and metal composition. The examples below are common US and Euro coins.
| Coin (example) | Typical weight |
|---|---|
| US penny | 2.5 g (0.088 oz) |
| US nickel | 5.0 g (0.176 oz) |
| US quarter | 5.67 g (0.20 oz) |
| 1 euro coin | 7.5 g (0.265 oz) |
| 2 euro coin | 8.5 g (0.30 oz) |
What affects coin weight
- Denomination. Higher-value coins are often larger and heavier.
- Metal composition. Different alloys have different densities and weights.
- Diameter and thickness. Bigger coins weigh more.
- Country. Each nation mints its own coins with unique specifications.
- Wear. Heavily circulated coins can lose a tiny amount of mass over time.
- Commemorative editions. Special coins may use heavier precious metals.
How coin weight compares
A US quarter at about 5.67 grams weighs roughly the same as a US nickel, or about as much as a sheet of paper folded a few times.
Frequently asked questions
How much does a US quarter weigh?
A US quarter weighs exactly 5.67 grams (about 0.20 oz).
How much does a penny weigh?
A modern US penny weighs about 2.5 grams (0.088 oz).
Why do coins weigh different amounts?
Coin weight depends on denomination, size and the metals used, which differ by country and over time.
