Find Your Perfect Ring Fit with Our Comprehensive Ring Size Converter

Measure with Confidence

Finding the right ring size is crucial for a comfortable and stylish fit. Our free ring size converter simplifies the process, empowering you to determine your accurate ring size by circumference or diameter with ease.

Instructions for Circumference Measurement

1. Wrap a string or thin paper snugly around the desired finger.
2. Mark the point where the string or paper overlaps.
3. Use a ruler to measure the length from the start of the string or paper up to the marked point.
4. Locate your measurement in the column "Circumference" in our converter.

Instructions for Diameter Measurement

1. Use a caliper or ruler to measure the inner diameter of an existing ring that fits well.
2. Determine the diameter by measuring the distance from one inner edge of the ring to the opposite inner edge.
3. Input the diameter in the column "Diameter" in our converter.

Ring Size Conversion

Upon entering your measurement, our cm-to-ring size converter will provide you with the corresponding ring size for the US/Canada and P sizing systems. For example, a circumference of 57.5 mm corresponds to ring size 7 3/4 for US/Canada and P.

Additional Tips

It's advisable to measure your finger size at the end of the day when your fingers are likely to be at their largest. If you're between sizes, consider opting for the larger size. Additionally, it's helpful to get your ring size measured at a jewelry store for accuracy.