Coins

US small dollar coin — diameter

≈ 1.043 in

The selected diameter for US small dollar coin is 1.043 in (approximate reference).

Nominal standard size · Catalogue uniruler-preview-2026-10-19-r3

What is being measured?

Nominal diameter in the 2024 U.S. Code specification. Individual minted or worn coins can vary.

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

Dimension
diameter
Reference value
1.043 in
Evidence
Nominal standard size
In metres
0.0264922 m
Variant
2024 statutory diameter specification; historical large coins excluded

Put the length in perspective

One US small dollar coin represents approximately 0.309 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.

US small dollar coin · 0.0264922 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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