Ring Size Calculator

Calculate ring size from circumference or diameter.

Input Measurement

Formulation

Val Label (mm)

Ring Sizing Results

2.75

Us2.75

UkM 1/2

Eu52

Jp12

Diameter: 16.55 mm

Circumference: 52.00 mm

Overview

Ring size calculation from finger circumference or diameter. US sizes 3-13 typical. EU uses circumference in mm. Accurate sizing prevents resizing costs.

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Pro Tips

Measure at end of day when fingers warmest.
Knuckle size affects ring fit.
Wide bands need half-size larger.
Dominant hand typically half-size larger.

Fun Facts

"Average women's: size 6-7."
"Average men's: size 9-10."
"Ring sizes range 3-13.5 typically."
"Fingers swell in heat, shrink in cold."

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