πRing Size Calculator
Find your perfect ring size with our accurate calculator. Multiple measurement methods, international conversion, and instant results for engagement rings, wedding bands, and fashion jewelry.
π€ What Is a Ring Size Calculator?
Think of finding the perfect parking spot - that's what finding your exact ring size feels like! Our calculator helps you measure your finger accurately using multiple methods and converts between international sizing systems (US, UK, EU) so your ring fits perfectly every time.
Wrap string around finger, mark where it meets, then measure with ruler
Measure the inner diameter of a ring that fits well
Interactive Ring Sizer
Adjust the ring size below to match your finger
Size 6
π Your ring size will appear here
π‘ Pro Tips for Accurate Measurement
Best Time to Measure
Measure at the end of the day when fingers are largest. Avoid cold weather or after exercise.
Finger Variations
Each finger can be different sizes. Measure the specific finger you'll wear the ring on.
Ring Width Consideration
Wide bands (6mm+) may need to be 0.5-1 size larger for comfort than thin bands.
Perfect Fit
Ring should slide over knuckle with slight resistance but not spin freely on finger.
π― Try Common Ring Sizes
π© Women's Small
US Size 5 β’ 49.3mm circumference
π© Women's Average
US Size 6 β’ 51.9mm circumference
π© Women's Large
US Size 7 β’ 54.4mm circumference
π¨ Men's Small
US Size 8 β’ 57.0mm circumference
π¨ Men's Average
US Size 9 β’ 59.5mm circumference
π¨ Men's Large
US Size 11 β’ 64.6mm circumference