Coin Weight & Size Checker

How much should a coin weigh?

A modern zinc cent has a nominal weight of 2.50 g, a nickel 5.00 g, a clad dime 2.268 g and a clad quarter 5.67 g. Choose the exact type above to compare your measurement with its nominal weight and diameter.

How much does a 1964 Kennedy half dollar weigh?

The nominal gross weight is 12.50 g. That includes its silver and copper, rather than measuring pure silver alone. The 1964 Roosevelt silver dime weighs 2.50 g; a 1960-D Washington silver quarter weighs 6.25 g. These dated silver presets are separate from the lighter clad issues.

The Kennedy preset compares weight only. Its cited reference rounds the diameter, so this worksheet leaves a precise diameter comparison unavailable instead of inventing extra precision.

What a measurement can tell you

This worksheet shows measured value minus nominal value, and the percentage weight difference. Wear, damage, a wrong type, packaging and instrument error can change a reading. Matching numbers do not authenticate a coin; a mismatch alone does not establish an error or counterfeit.

1982 cents were made in both copper and zinc compositions. Their nominal weights differ: 3.11 g and 2.50 g. Weight alone does not establish a scarce date or variety. The copper preset is limited to ordinary 1962-1982 cents. It does not cover 1943 steel cents or every earlier cent alloy.

Other silver issues, war nickels, Susan B. Anthony dollars, large dollars and silver collector versions are outside these presets. Do not remove a certified coin from its holder to use this worksheet. For metal content rather than a physical measurement, use the Silver Melt Calculator.

Follow up with the Mint Error or Damage Checker or Variety Attribution Assistant. Store an observation in Coin Passport.

References: U.S. Mint coin specifications, Mint alternative-metals report (older cent weight), PCGS: 1964 Kennedy half, PCGS: 1964 Roosevelt dime, and GreatCollections: 1960-D Washington quarter specifications. Reviewed October 12, 2026.

Comparing multiple measurements

The session worksheet keeps up to 50 calculated readings together. It records your measured numbers and their reference differences, not an authentication verdict. Reset clears the current inputs; Clear worksheet removes session readings. Download your worksheet before closing or reloading this tab.

Coin weight and diameter reference

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