3 centimetres
3 cmLength · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Length & distance
Just how long is 3 centimetres?
Up close
3 cm
3 centimetres
The quantity is exact as entered.
3 cmLength
0 - shared origin
UK £2 coin
A UK £2 coin is the bimetallic two-pound denomination of the pound sterling circulation coinage.
2.84 cmSpecified diameter
0 - shared origin
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. A ruler represents the selected distance or a measurement not visible in this view.
A little perspective
3 centimetres is about 1.06 times the diameter of a UK £2 coin.
Measurements, assumptions & sources +
3 centimetres
Length: 3 cm; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
UK £2 coin
Specified diameter: 2.84 cm; specified.
Bimetallic UK two-pound circulation format: 28.4 mm diameter, 2.5 mm thickness and 12 g mass. Bimetallic means an outer ring and inner disc; earlier single-metal or collector issues are not the comparison input.
Royal Mint — bimetallic £2 specifications
The marked specified diameter is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 3 centimetres with the diameter of a UK £2 coin. The notes below explain how each value was chosen.
UK £2 coin
2.84 cmSpecified diameter · specified
Bimetallic UK two-pound circulation format: 28.4 mm diameter, 2.5 mm thickness and 12 g mass. Bimetallic means an outer ring and inner disc; earlier single-metal or collector issues are not the comparison input.
- Comparing
- Length ↔ Specified diameter
- Relative size
- 3 centimetres is about 1.06 times the diameter of a UK £2 coin. 3 centimetres is approximately 5.63% greater than the diameter of a UK £2 coin.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
This comparison follows the selected length only; other dimensions may differ.
0.03 mmetres
0.098425 ftfeet
1.8641 × 10⁻⁵ mimiles
2.0054 × 10⁻¹³ AUastronomical units
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