UK 50p coin
A UK 50p coin is the seven-sided fifty-pence denomination of the decimal pound sterling circulation coinage.
Also known as: British 50p coin, fifty pence coin
How big is it?
2.73 cm across
Also 1.075 in
Specified maximum diameter · specified
A little perspective
About the same scale as UK £2 coin.
UK £2 coin: A UK £2 coin is the bimetallic two-pound denomination of the pound sterling circulation coinage.
Measurements, assumptions & sources +
UK 50p coin
The current UK fifty-pence circulation coin has a 27.3 mm maximum diameter, is 1.78 mm thick and weighs 8 g. Its equilateral-curve heptagon has constant breadth.
Royal Mint — UK coin designs and specifications
The marked specified maximum diameter is calibrated. Unmeasured illustration details are representative.
UK £2 coin
The current bimetallic UK two-pound circulation coin is 28.4 mm in diameter, 2.5 mm thick and weighs 12 g.
Royal Mint — UK coin designs and specifications
The marked specified diameter is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 2.73 cm
For comparison, this page uses specified maximum diameter. The record labels this value specified, so the stated convention rather than an inferred average controls the comparison.
The current UK fifty-pence circulation coin has a 27.3 mm maximum diameter, is 1.78 mm thick and weighs 8 g. Its equilateral-curve heptagon has constant breadth.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
UK 50p coin dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2.73 cm | Not recorded | specified | |
| 1.78 mm | Not recorded | specified | |
| 8 g | Not recorded | specified |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Everyday things£1 coin2.343 cmA £1 coin is a twelve-sided British coin used as standard currency in the United Kingdom.
Around the same scale · Everyday thingsUK 20p coin2.14 cmA UK 20p coin is the seven-sided twenty-pence denomination of the decimal pound sterling circulation coinage.
Nearest higher value · Everyday thingsUK £2 coin2.84 cmA UK £2 coin is the bimetallic two-pound denomination of the pound sterling circulation coinage.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Royal Mint — UK coin designs and specificationsCurrent circulation denomination dimensions, masses, compositions and design history.
There’s always another scale
Follow your curiosity.
Everyday thingsUK 20p coin2.14 cmA UK 20p coin is the seven-sided twenty-pence denomination of the decimal pound sterling circulation coinage.Everyday things£1 coin2.343 cmA £1 coin is a twelve-sided British coin used as standard currency in the United Kingdom.Everyday thingsUK £2 coin2.84 cmA UK £2 coin is the bimetallic two-pound denomination of the pound sterling circulation coinage.
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