International Ring Sizing Chart Conversion

HOW TO FIND YOUR RING SIZE:

To measure the ring size you need the following:

• ✔️ A strip of paper
• ✔️ Ruler
• ✔️ Pen/marker

How to measure:

1. ✔️ Cut a thin strip of paper about 100 millimeters long.
2. ✔️ Wrap the strip of paper around the finger at the base and close enough to your knuckle. Aim for a comfortable snug fit.
3. ✔️ Mark the area where the two ends of the paper strip meet.
4. ✔️ Use the ruler to measure the length in millimeters to give you the circumference.
5. ✔️ Convert the measurement to the appropriate ring size, using the ring size chart below.

 

​ Inside Diameter  Inside Circumference Sizes MM Inches MM Inches British & Australian  US & Canada French & Russian German Japanese Swiss 9.91 0.390 31.13 1.22 - 0000 - - - - 10.72 0.442 33.68 1.39 - 00 - - - - 11.53 0.454 36.22 1.43 - 0 - - - - 11.95 0.474 37.54 1.49 A 1/2 - - - - 12.18 0.482 38.26 1.51 A 1/2 3/4 - - - - 12.37 0.487 38.86 1.53 B 1 - - 1 - 12.60 0.496 39.58 1.56 B 1/2 1 1/4 - - - - 12.78 0.503 40.15 1.58 C 1 1/2 - - - - 13.00 0.512 40.84 1.61 C 1/2 1 3/4 - - - - 13.21 0.520 41.50 1.63 D 2 41 1/2 13 1/2 2 1 1/2 13.41 0.528 42.13 1.66 D 1/2 2 1/4 - - - - 13.61 0.536 42.76 1.68 E 2 1/2 42 3/4 13 3/4 3 2 3/4 13.83 0.544 43.45 1.71 E 1/2 2 3/4 - - - - 14.05 0.553 44.14 1.74 F 3 44 14 4 4 14.15 0.557 44.45 1.75 F 1/2 3 1/8 - - - - 14.25 0.561 44.77 1.76 F 3/4 3 1/4 - - - - 14.36 0.565 45.11 1.77 G 3 3/8 45 1/4 - 5 5 1/4 14.45 0.569 45.40 1.79 G 1/4 3 1/2 - 14 1/2 - - 14.56 0.573 45.74 1.80 G 1/2 3 5/8 - - 6 - 14.65 0.577 46.02 1.81 H 3 3/4 46 1/2 - - 6 1/2 14.86 0.585 46.68 1.84 H 1/2 4 - 15 7 - 15.04 0.592 47.25 1.86 I 4 1/4 47 3/4 - - 7 3/4 15.27 0.601 47.97 1.89 I 1/2 4 1/2 - 15 1/4 8 - 15.40 0.606 48.38 1.90 J 4 5/8 49 15 1/2 - 9 15.53 0.611 48.79 1.92 J 1/4 4 3/4 - - - - 15.70 0.618 49.32 1.94 J 1/2 5 - 15 3/4 9 - 15.80 0.622 49.64 1.95 K 5 1/8 50 - - 10 15.90 0.626 49.95 1.97 K 1/4 5 1/4 - - - - 16.00 0.630 50.27 1.98 K 1/2 5 3/8 - - 10 - 16.10 0.634 50.58 1.99 L 5 1/2 51 3/4 16 - 11 3/4 16.30 0.642 51.21 2.02 L 1/4 5 3/4 - - - - 16.41 0.646 51.55 2.03 L 1/2 5 7/8 - - - - 16.51 0.650 51.87 2.04 M 6 52 3/4 16 1/2 12 12 3/4 16.71 0.658 52.50 2.07 M 1/2 6 1/4 - - - - 16.92 0.666 53.16 2.09 N 6 1/2 54 17 13 14 17.13 0.674 53.82 2.12 N 1/2 6 3/4 - - - - 17.35 0.683 54.51 2.15 O 7 55 1/4 17 1/4 14 15 1/4 17.45 0.687 54.82 2.16 O 1/2 7 1/4 - - - - 17.75 0.699 55.76 2.20 P 7 1/2 56 1/2 17 3/4 15 16 1/2 17.97 0.707 56.45 2.22 P 1/2 7 3/4 - - - - 18.19 0.716 57.15 2.25 Q 8 57 3/4 18 16 17 3/4 18.35 0.722 57.65 2.27 Q 1/2 8 1/4 - - - - 18.53 0.729 58.21 2.29 Q 3/4 8 1/2 - 18 1/2 17 - 18.61 0.733 58.47 2.30 R 8 5/8 59 - - 19 18.69 0.736 58.72 2.31 R 1/4 8 3/4 - - - - 18.80 0.740 59.06 2.32 R 1/2 8 7/8 - - - - 18.89 0.748 59.34 2.35 R 3/4 9 - 19 18 - 19.10 0.752 60.00 2.36 S 9 1/8 60 1/4 - - 20 1/4 19.22 0.757 60.38 2.38 S 1/4 9 1/4 - - - - 19.31 0.760 60.66 2.39 S 1/2 9 3/8 - - - - 19.41 0.764 60.98 2.40 S 3/4 9 1/2 - 19 1/2 19 - 19.51 0.768 61.29 2.41 T 9 5/8 61 1/2 - - 21 1/2 19.62 0.772 61.64 2.43 T 1/4 9 3/4 - - - - 19.84 0.781 62.33 2.45 T 1/2 10 - 20 20 - 20.02 0.788 62.89 2.48 U 10 1/4 62 3/4 - 21 22 3/4 20.20 0.797 63.46 2.50 U 1/2 10 1/2 - 20 1/4 22 - 20.32 0.800 63.84 2.51 V 10 5/8 63 - - 23 3/4 20.44 0.805 64.21 2.53 V 1/4 10 3/4 - - - - 20.68 0.814 64.97 2.56 V 1/2 11 - 20 3/4 23 - 20.76 0.817 65.22 2.57 W 11 1/8 65 - - 25 20.85 0.821 65.50 2.58 W 1/4 11 1/4 - - - - 20.94 0.824 65.78 2.59 W 1/2 11 3/8 - - - - 21.08 0.830 66.22 2.61 W 3/4 11 1/2 - 21 24 - 21.18 0.834 66.54 2.62 X 11 5/8 66 1/4 - - 26 1/4 21.24 0.836 66.73 2.63 X 1/4 11 3/4 - - - - 21.30 0.839 66.92 2.64 X 1/2 11 7/8 - - - - 21.49 0.846 67.51 2.66 Y 12 67 1/2 21 1/4 25 27 1/2 21.69 0.854 68.14 2.68 Y 1/2 12 1/4 - - - - 21.89 0.862 68.77 2.71 Z 12 1/2 68 3/4 21 3/4 26 28 3/4 22.10 0.870 69.43 2.73 Z +1/2 12 3/4 - - - - 22.33 0.879 70.15 2.76 Z+1 13 - 22 27 - 22.60 0.890 71.00 2.80 Z+1.5 13.5 - - - - 22.69 0.893 71.28 2.81 Z+2 - - - - - 22.92 0.902 72.00 2.83 Z+2.5 - - - - - 23.06 0.908 72.45 2.85 Z+3 14 - - - - 23.24 0.915 73.01 2.87 Z+3.5 - - - - - 23.47 0.924 73.73 2.90 Z+4 - - - - - 23.55 0.927 73.98 2.91 Z+4.5 15 - - - - 23.87 0.940 74.99 2.95 Z+5 - - - - - 24.27 0.956 76.25 3.00 Z+6