What are you measuring?

Finger Circumference (mm)

Tip: 1 cm = 10 mm. Average women's circumference is ~52–54 mm, men's ~60–65 mm.

How to Measure Your Ring Size at Home

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Method 1: Paper Strip

Cut a thin strip of paper about 15 cm long and 5 mm wide.

Wrap it snugly around the base of your finger — the knuckle should still pass through comfortably.

Mark where the paper overlaps with a pen.

Lay the paper flat and measure the length in mm — this is your circumference.

Enter this value above and click "Find Ring Size".

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Method 2: String / Thread

Take a piece of thin, non-stretchy string or dental floss about 15 cm long.

Wrap it around the base of your finger and hold the point where it overlaps.

Mark the overlap point with a marker or pinch it with your fingers.

Lay the string flat against a ruler and measure the length — this is your circumference.

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Method 3: Existing Ring

Find a ring that fits well on your target finger.

Lay it flat on a ruler and measure the inside diameter from inner edge to inner edge in mm.

Select "Diameter" above, enter the measurement, and click "Find Ring Size".

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Method 4: Caliper / Digital Ruler

Use a digital caliper for the most accurate result.

Measure the inside diameter of an existing well-fitting ring in mm.

Or measure your finger at the widest point across the knuckle.

Select "Diameter", enter the value, and convert.

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Measure at the end of the day — fingers swell slightly in the afternoon and evening.

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Fingers are larger in summer heat and smaller in cold winter weather.

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If you're between two sizes, always choose the larger size for comfort and easy removal.

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Avoid measuring immediately after exercise, in cold water, or after eating salty foods (all cause temporary size changes).

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Measure 2–3 times and average the results for accuracy.

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Wide rings (> 6mm band) typically require going half a size up compared to thin rings.

Complete International Ring Size Chart

* Highlighted row indicates your last converted size. Measurements are inner diameter and circumference in millimetres.

💍 Ring Size Converter