Find Your Ring Size

Ring Size Converter

Know your size in another country, or have a measurement in millimetres? Convert it here. We make US 3 to 13.

US —
Choose a measurement above.

Measure at Home

Paper, a marker and a ruler. Two minutes.

01Cut a thin strip of paper or take a piece of string.
02Wrap it round the base of the finger, snug but turning freely.
03Mark where the ends meet.
04Measure to the mark in millimetres. That is your circumference — put it in the converter.

Measure in the evening, when fingers are largest. Between two sizes, take the larger. A wide band feels tighter — go up a half size.

International Size Chart

The same numbers the converter uses.

US / CA UK / AU / IE / NZ JP / IN / CN EU Diameter Circumference
3 F 4 4.25 14.05 mm 44.1 mm
3.25 F 1/2 - 4.75 14.24 mm 44.7 mm
3.5 G 5 5.5 14.45 mm 45.4 mm
3.75 G 1/2 6 6 14.65 mm 46.0 mm
4 H 7 6.75 14.88 mm 46.8 mm
4.25 H 1/2 - 7.5 15.09 mm 47.4 mm
4.5 I 8 8 15.29 mm 48.0 mm
4.75 J - 8.75 15.49 mm 48.7 mm
5 J 1/2 9 9.25 15.70 mm 49.3 mm
5.25 K - 10 15.90 mm 49.9 mm
5.5 K 1/2 10 10.5 16.10 mm 50.6 mm
5.75 L - 11.25 16.31 mm 51.2 mm
6 L 1/2 11 11.75 16.51 mm 51.9 mm
6.25 M 12 12.5 16.71 mm 52.5 mm
6.5 M 1/2 13 13.25 16.92 mm 53.1 mm
6.75 N - 13.75 17.12 mm 53.8 mm
7 N 1/2 14 14.5 17.32 mm 54.4 mm
7.25 O - 15 17.53 mm 55.1 mm
7.5 O 1/2 15 15.75 17.73 mm 55.7 mm
7.75 P - 16.25 17.93 mm 56.3 mm
8 P 1/2 16 17 18.14 mm 57.0 mm
8.25 Q - 17.5 18.34 mm 57.6 mm
8.5 Q 1/2 17 18.25 18.54 mm 58.2 mm
8.75 R - 19 18.75 mm 58.9 mm
9 R 1/2 18 19.5 18.95 mm 59.5 mm
9.25 S - 20.25 19.15 mm 60.2 mm
9.5 S 1/2 19 20.75 19.35 mm 60.8 mm
9.75 T - 21.5 19.56 mm 61.4 mm
10 T 1/2 20 22 19.76 mm 62.1 mm
10.25 U 21 22.75 19.96 mm 62.7 mm
10.5 U 1/2 22 23.25 20.17 mm 63.4 mm
10.75 V - 24 20.37 mm 64.0 mm
11 V 1/2 23 24.75 20.57 mm 64.6 mm
11.25 W - 25.25 20.78 mm 65.3 mm
11.5 W 1/2 24 26 20.98 mm 65.9 mm
11.75 X - 26.5 21.18 mm 66.5 mm
12 X 1/2 25 27.25 21.39 mm 67.2 mm
12.25 Y - 27.75 21.59 mm 67.8 mm
12.5 Z 26 28.5 21.79 mm 68.5 mm
12.75 Z 1/2 - 29 22.00 mm 69.1 mm
13 - 27 29.75 22.20 mm 69.7 mm

Still unsure? Choose “help me choose” on the product page, or message us on WhatsApp at +91 99044 44516. Every ring is made to order, so it is easier to settle this before we begin.