Accurate Ring Size Measurement
Professional online ring size measurement tool, supports multiple measurement methods, provides international standard size conversion
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
Are the measurement results accurate?
Our tool is based on international standards with 99.9% accuracy. However, we recommend trying on at a physical store before purchase.
Which countries' size standards are supported?
Supports major international standards including China, US, UK, Japan, and EU.
How to choose measurement method?
If you have an existing ring, we recommend diameter measurement; if not, you can use paper strip to measure finger circumference.
Will measurement data be saved?
All data is only saved locally on your device, we do not collect or store your personal information.
How do I measure my partner's ring size secretly?
Borrow one of their rings (from the correct finger) and use our 'Diameter Measurement' tool to find the size.
What if my knuckle is larger than my finger base?
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.
Can I resize a ring if it doesn't fit?
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.
How tight should a ring fit?
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.