0.25 ounces
7.087 gMass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mass
In your hand
Bar length measures mass, not physical size. Both bars start at zero kilograms (kg). Pictures identify the objects only.
A little perspective
0.25 ounces is approximately equal to the mass of a UK 2p coin.
Mass: 7.087 g; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Specified mass: 7.12 g; specified.
Copper-plated steel UK 2p: 25.9 mm diameter, 2.03 mm thickness and 7.12 g mass. Bronze coins are 1.85 mm thick. Both alloys were used in 1998, so a year alone does not establish material.
Royal Mint — 2p specifications
The marked specified mass is calibrated. Unmeasured illustration details are representative.
Measurement details
Compare 0.25 ounces with the mass of a UK 2p coin. The notes below explain how each value was chosen.
Mass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Specified mass · specified
Copper-plated steel UK 2p: 25.9 mm diameter, 2.03 mm thickness and 7.12 g mass. Bronze coins are 1.85 mm thick. Both alloys were used in 1998, so a year alone does not establish material.
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
Mass is distinct from weight: an object’s mass stays the same as gravity changes.
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