Coins

US circulating quarter — diameter

≈ 24.26 mm

The selected diameter for US circulating quarter is 24.26 mm (approximate reference).

Manufacturer specification · Catalogue uniruler-preview-2026-10-19-r4

What is being measured?

Mint-published diameter. Use the metric basis rather than recombining rounded displayed inch values.

Use the named object, variant and dimension. A manufactured or natural object can differ from this reference.

Dimension
diameter
Reference value
24.26 mm
Evidence
Manufacturer specification
In metres
0.02426 m

Put the length in perspective

One US circulating quarter represents approximately 0.283 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.

US circulating quarter · 0.02426 m

Metre · 1 m

Foot (international) · 0.3048 m

One of each reference, on the same linear scale. Very small lengths may not be visible. This compares length, not area or physical fit.
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