Ring Finger Size
There are a variety of ring sizers, ring size charts and other tools to measure your ring size at home.
But the best way to determine your finger size is to visit at least one reputable jeweler.
How to Measure a Finger for Ring Size
Ring size chart sample
Most jewelers will have the following finger sizing tools -
Often there are discrepancies in the sizing tools made by different manufacturers. If you want to place an online order to guarantee the sale price, you can do so, in the comment box clearly explain that you will call us back with the correct size, once determined by a jeweler. We will hold the order for a maximum of one week.
US/Canada |
Inner Diameter | Inner Diameter |
Inner |
Inner Circumference |
British, Irish, Australian sizes |
Japanese sizes |
Swiss sizes |
Standard | (inches) | (mm) | (inches) | (mm) | Equivalent | Equivalent | Equivalent |
0 | 0.458 | 11.6 | 1.438 | 36.5 | |||
1/4 | 0.466 | 11.8 | 1.463 | 37.2 | |||
1/2 | 0.474 | 12.0 | 1.488 | 37.8 | A | ||
3/4 | 0.482 | 12.2 | 1.513 | 38.4 | A 1/2 | ||
1 | 0.490 | 12.4 | 1.539 | 39.1 | B | 1 | |
1 1/4 | 0.498 | 12.6 | 1.564 | 39.7 | B 1/2 | ||
1 1/2 | 0.506 | 12.9 | 1.589 | 40.4 | C | ||
1 3/4 | 0.514 | 13.1 | 1.614 | 41.0 | C 1/2 | ||
2 | 0.522 | 13.3 | 1.639 | 41.6 | D | 2 | 1.50 |
2 1/4 | 0.530 | 13.5 | 1.664 | 42.3 | D 1/2 | ||
2 1/2 | 0.538 | 13.7 | 1.689 | 42.9 | E | 3 | 2.75 |
2 3/4 | 0.546 | 13.9 | 1.714 | 43.5 | E 1/2 | ||
3 | 0.554 | 14.1 | 1.740 | 44.2 | F | 4 | 4.00 |
3 1/4 | 0.562 | 14.3 | 1.765 | 44.8 | F 1/2 | 5 | 5.25 |
3 1/2 | 0.570 | 14.5 | 1.790 | 45.5 | G | ||
3 3/4 | 0.578 | 14.7 | 1.815 | 46.1 | G 1/2 | 6 | 6.50 |
4 | 0.586 | 14.9 | 1.840 | 46.7 | H | 7 | |
4 1/4 | 0.594 | 15.1 | 1.865 | 47.4 | H 1/2 | 7.75 | |
4 1/2 | 0.602 | 15.3 | 1.890 | 48.0 | I | 8 | |
4 3/4 | 0.610 | 15.5 | 1.915 | 48.7 | J | 9.00 | |
5 | 0.618 | 15.7 | 1.941 | 49.3 | J 1/2 | 9 | |
5 1/4 | 0.626 | 15.9 | 1.966 | 49.9 | K | 10.00 | |
5 1/2 | 0.634 | 16.1 | 1.991 | 50.6 | K 1/2 | 10 | |
5 3/4 | 0.642 | 16.3 | 2.016 | 51.2 | L | 11.75 | |
6 | 0.650 | 16.5 | 2.041 | 51.8 | L 1/2 | 11 | 12.75 |
6 1/4 | 0.658 | 16.7 | 2.066 | 52.5 | M | 12 | |
6 1/2 | 0.666 | 16.9 | 2.091 | 53.1 | M 1/2 | 13 | 14.00 |
6 3/4 | 0.674 | 17.1 | 2.116 | 53.8 | N | ||
7 | 0.682 | 17.3 | 2.141 | 54.4 | N 1/2 | 14 | 15.25 |
7 1/4 | 0.690 | 17.5 | 2.167 | 55.0 | O | ||
7 1/2 | 0.698 | 17.7 | 2.192 | 55.7 | O 1/2 | 15 | 16.50 |
7 3/4 | 0.706 | 17.9 | 2.217 | 56.3 | P | ||
8 | 0.714 | 18.1 | 2.242 | 56.9 | P 1/2 | 16 | 17.75 |
8 1/4 | 0.722 | 18.3 | 2.267 | 57.6 | Q | ||
8 1/2 | 0.730 | 18.5 | 2.292 | 58.2 | Q 1/2 | 17 | |
8 3/4 | 0.738 | 18.7 | 2.317 | 58.9 | R | 19 | |
9 | 0.746 | 18.9 | 2.342 | 59.5 | R 1/2 | 18 | |
9 1/4 | 0.754 | 19.2 | 2.368 | 60.1 | S | 20.25 | |
9 1/2 | 0.762 | 19.4 | 2.393 | 60.8 | S 1/2 | 19 | |
9 3/4 | 0.770 | 19.6 | 2.418 | 61.4 | T | 21.5 | |
10 | 0.778 | 19.8 | 2.443 | 62.1 | T 1/2 | 20 | |
10 1/4 | 0.786 | 20.0 | 2.468 | 62.7 | U | 21 | |
10 1/2 | 0.794 | 20.2 | 2.493 | 63.3 | U 1/2 | 22 | 22.75 |
10 3/4 | 0.802 | 20.4 | 2.518 | 64.0 | V | ||
11 | 0.810 | 20.6 | 2.543 | 64.6 | V 1/2 | 23 | |
11 1/4 | 0.818 | 20.8 | 2.569 | 65.2 | W | 25 | |
11 1/2 | 0.826 | 21.0 | 2.594 | 65.9 | W 1/2 | 24 | |
11 3/4 | 0.834 | 21.2 | 2.619 | 66.5 | X | ||
12 | 0.842 | 21.4 | 2.644 | 67.2 | X 1/2 | 25 | 27.50 |
12 1/4 | 0.850 | 21.6 | 2.669 | 67.8 | Y | ||
12 1/2 | 0.858 | 21.8 | 2.694 | 68.4 | Z | 26 | 28.75 |
12 3/4 | 0.866 | 22.0 | 2.719 | 69.1 | Z 1/2 | ||
13 | 0.874 | 22.2 | 2.744 | 69.7 | 27 | ||
13 1/4 | 0.882 | 22.4 | 2.769 | 70.3 | Z1 | ||
13 1/2 | 0.890 | 22.6 | 2.795 | 71.0 | |||
13 3/4 | 0.898 | 22.8 | 2.820 | 71.6 | Z2 | ||
14 | 0.906 | 23.0 | 2.845 | 72.3 | Z3 | ||
14 1/4 | 0.914 | 23.2 | 2.870 | 72.9 | |||
14 1/2 | 0.922 | 23.4 | 2.895 | 73.5 | Z4 | ||
14 3/4 | 0.930 | 23.6 | 2.920 | 74.2 | |||
15 | 0.938 | 23.8 | 2.945 | 74.8 | |||
15 1/4 | 0.946 | 24.0 | 2.970 | 75.4 | |||
15 1/2 | 0.954 | 24.2 | 2.996 | 76.1 | |||
15 3/4 | 0.962 | 24.4 | 3.021 | 76.7 | |||
16 | 0.970 | 24.6 | 3.046 | 77.4 |
Featured collection
Completed Custom Rings Orders
7.5 Carat U Prong Pave Round Diamond Eternity Band
Sale price$5,501.20 USD
Emerald Cut Diamond Engagement Ring one Side Stone 2.43ctw
Sale price$1,270.78 USD
Toi Et Moi Ring Sapphire And Diamond 18kt Yellow Gold
Sale price$2,122.03 USD
Toi Et Moi Ring Emerald And Diamond 18kt Yellow Gold
Sale price$2,122.03 USD
2.85 ctw Oval Lab Grown Diamond Hidden Halo Engagement Ring
Sale price$5,262.01 USD
Round Emerald and Sapphire Cluster Ring
Sale price$1,755.98 USD
Round and Marquise Diamond Bridal Ring Set 2.0 ct.t.w.
Sale price$993.52 USD
Black and White Diamond Band Flower Design Ring 14K
Sale price$774.02 USD
Shop
Our looks
Shop the look
Name Necklace Mia Citrine Accent Yellow Gold
Sale price$335.03 USD
Shop the look
Sweeping Ivy Diamond Ring with Morganite
Sale price$1,455.62 USD
Shop the look
Pear Lab Grown Diamond Eternity Band White Gold
Sale price$1,963.93 USD
Shop the look
Engraved Interlocking Rings Necklace
Sale priceFrom $658.50 USD
Name Necklace Mia Citrine Accent Yellow Gold
Sale price$335.03 USD
Sweeping Ivy Diamond Ring with Morganite
Sale price$1,455.62 USD
Pear Lab Grown Diamond Eternity Band White Gold
Sale price$1,963.93 USD
Engraved Interlocking Rings Necklace
Sale priceFrom $658.50 USD