Use our free ring size converter to determine your ring size by circumference or diameter

Accurately determine what ring size you are in all international sizing standards.

For the most accurate results, measure the inner diameter or circumference of your ring or finger, and use a complete conversion chart like the one on this site, which includes exact values for each size.

Use the dropdown menus below to help find your circumference or diameter measurement. Next, use the ring size chart to see which size corresponds to your measurement and find your perfect size.

May 14, 2025 · Choose how you'd like to measure (circumference, diameter, or use an existing ring size). Enter your measurement in millimeters or inches — the built-in unit conversion ensures it's …

There are two main ways to figure out your ring size: Measure an existing ring: If you already own a ring that fits the same finger, you can measure its diameter or inner circumference using a ruler. Measure …

Measure the length of the string against a ruler - that's our finger circumference. Here, you can stop the measurements - type the obtained value into the ring size converter. All the other values will be …

Looking for an accurate, industry standard ring size chart for your ring's diameter or circumference measurements? We have a handy ring sizing table to help you figure out your US ring size. Our chart …

6 days ago · Download our free printable ring sizer and learn step-by-step how to measure ring size accurately at home. Includes charts, tips, and expert guidance.

2. Take the ring you want to measure, ideally with a regular outline. 3. Place the ring on the different circles of the ring gauge, until the circle aligns perfectly with the inner circumference of your ring. The …