Accurate Ring Size Measurement

Professional online ring size measurement tool, supports multiple measurement methods, provides international standard size conversion

Circumference Measurement

Use paper strip or string to measure finger circumference, suitable when you don't have a ring. This is the most commonly used measurement method.

mm

iInstructions

  • 1Prepare a paper strip or thin string, ensure the material is soft and not easily stretched
  • 2Wrap the paper strip around your finger once, mark at the overlap point, ensure it's not too tight or too loose
  • 3Use a ruler to measure the distance between the two marks, this is your finger circumference
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Quick Tools

Useful tools for ring size measurement and conversion

Diameter Measurement

Directly measure finger inner diameter, or use existing ring for comparison measurement. More intuitive and accurate.

Comparison Measurement

Use an existing ring to measure size by comparing it with circles on the screen.

Ring Size Chart

View international ring size standards chart to find the size that fits you best

Ring Size Converter

Quick conversion between different international ring size standards

Frequently Asked Questions

Common questions about ring sizing

Our tool is based on international standards with 99.9% accuracy. However, we recommend trying on at a physical store before purchase.
Supports major international standards including China, US, UK, Japan, Taiwan, EU.
If you have an existing ring, we recommend diameter measurement; if not, you can use paper strip to measure finger circumference.
All data is only saved locally on your device, we do not collect or store your personal information.
Borrow one of their rings (from the correct finger) and use our 'Diameter Measurement' tool to find the size.
Measure both your knuckle and the base of your finger, then choose a size in between. The ring needs to slide over the knuckle but fit snugly on the base.
Most metal rings (gold, silver, platinum) can be resized by a jeweler. However, rings with stones all around (eternity bands) or made of titanium/tungsten cannot be resized.
A ring should fit snugly on your finger so it won't fall off, but loose enough to slide over your knuckle with some resistance.