How Heavy Is a Dollar Coin?
a Dollar Coin weighs exactly
8.1 g (0.01786 lb)
Using a log scale so small objects stay visible — the numbers stay real.
- a gallon of water3.78 kg
1 US gallon (3.785 412 L) of pure water at 4 °C
- an iPhone 160.17 kg
iPhone 16, Apple technical specifications
- a large egg0.05 kg
one USDA large egg, edible portion with the shell removed
- a dollar coin0.0081 kg
current U.S. circulating $1 coin (Presidential or Native American $1), manganese-brass clad, single coin
- You
Open full comparison → to add more objects on one scale.
Put it in perspective
- About 6.2× a large egg
- About 21× an iPhone 16
- About 470× a gallon of water
Why weights differ
The current statute (31 U.S.C. 5112) specifies the dollar coin's diameter but no longer its weight, so the Mint's specification table is the operative standard here. The live U.S. Mint page blocks automated access, so this citation uses the Internet Archive snapshot; the 2025 snapshot of the renamed page shows the same weights.
Sources
[1] U.S. Mint (Internet Archive snapshot)
“Specifications for the Presidential $1 Coin and Native American $1 Coin are the same ... Weight 2.500 g 5.000 g 2.268 g 5.670 g 11.340 g 8.1 g”
Value as published: 8.1 g · accessed 2026-11-11.
Last updated 2026-11-11.Report a correction (please include a source link).
Related objects
- a 2 euro coin8.5 g (0.01874 lb)
- a 1 euro coin7.5 g (0.01653 lb)
- a half dollar11.34 g (0.025 lb)
- a quarter5.67 g (0.0125 lb)
- a nickel5 g (0.01102 lb)
- a penny2.5 g (0.005512 lb)
Frequently asked questions
How much does a dollar coin weigh?
a Dollar Coin weighs exactly 8.1 g (0.01786 lb) — current U.S. circulating $1 coin (Presidential or Native American $1), manganese-brass clad, single coin.
How much is a dollar coin in pounds and ounces?
0.01786 lb, which is 0.2857 oz. In metric terms: 0.0081 kg.
Is a dollar coin heavier than a large egg?
No. a Dollar Coin weighs exactly 8.1 g (0.01786 lb), while a large egg is about 50 g (0.11 lb) — roughly 1/6.17.
Why do sources give different weights?
The current statute (31 U.S.C. 5112) specifies the dollar coin's diameter but no longer its weight, so the Mint's specification table is the operative standard here. The live U.S. Mint page blocks automated access, so this citation uses the Internet Archive snapshot; the 2025 snapshot of the renamed page shows the same weights.
Where does this number come from?
Every source is listed at the bottom of this page with publisher, link, access date and a verbatim quote. Numbers are only published when a qualifying source can be verified.