Bottle cap
A bottle cap is a small closure used to seal the opening of a bottle and keep its contents secure.
How big is it?
2.8 cm across
Also 1.102 in
Diameter · example
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 +
Bottle cap
A defined 28 mm diameter cap.
Defined examples — our methodology
The marked 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 2.8 cm
For comparison, this page uses diameter. This is labelled example: an explicit comparison model rather than a claim that every example has the same value.
A defined 28 mm diameter cap.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Bottle cap dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2.8 cm | Not recorded | example |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Everyday thingsUK 50p coin2.73 cmA UK 50p coin is the seven-sided fifty-pence denomination of the decimal pound sterling circulation coinage.
Around the same scale · Everyday thingsUK 2p coin2.591 cmA UK 2p coin is the two-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.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
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