How to know my ring size?
Finding the right ring size is crucial for creating a memorable moment. It’s important to select the size carefully, ensuring it’s tight enough not to slip off but loose enough to slide comfortably over the knuckle.
Several factors, like the time of day and weather, can influence the measurement. For example, fingers tend to be smaller in the early morning or during cold weather, while they swell in hot conditions. The ideal time to measure is in the evening when your fingers are warm. If you’re unsure between two sizes, it’s best to opt for the larger one. If your knuckle is wider than the base of your finger, measure both and choose a size in between. It’s also helpful to measure your finger multiple times throughout the day.
If the ring is meant to be a surprise, consider asking a friend or family member for assistance or discreetly borrow an existing ring and take it to a jeweler to determine the size. Remember, the size of your fingers on your right and left hands may differ.
Below, you’ll find a chart with standard ring sizes, along with their corresponding diameters and circumferences.
| Diameter (mm) | Circumference (mm) | AE | UK |
|---|---|---|---|
| 12.7 | 39.9 | - | C |
| 13 | 40.8 | - | D |
| 13.3 | 41.8 | - | D 1/2 |
| 13.5 | 42.4 | - | E |
| 13.6 | 42.7 | - | E 1/2 |
| 14 | 44.0 | - | F |
| 14.1 | 44.3 | - | F 1/2 |
| 14.3 | 44.9 | - | G |
| 14.5 | 45.6 | 6 | G 1/2 |
| 14.6 | 45.9 | - | H |
| 14.9 | 46.8 | 7 | - |
| 15 | 47.1 | 7 1/2 | H 1/2 |
| 15.1 | 47.4 | - | I |
| 15.3 | 48.1 | 8 | I 1/2 |
| 15.5 | 48.7 | - | J |
| 15.6 | 49.0 | - | J 1/2 |
| 15.7 | 49.3 | 9 | - |
| 15.9 | 50.0 | - | K |
| 16 | 50.3 | 10 | - |
| 16.1 | 50.6 | - | K 1/2 |
| 16.2 | 50.9 | 11 | L |
| 16.4 | 51.5 | 12 | - |
| 16.5 | 51.8 | 12 1/4 | L 1/2 |
| 16.7 | 52.5 | - | M |
| 16.9 | 53.1 | 13 | M 1/2 |
| 17.1 | 53.7 | - | N |
| 17.2 | 54.0 | - | N 1/2 |
| 17.3 | 54.3 | 14 | - |
| 17.5 | 55.0 | 14 1/2 | O |
| 17.7 | 55.6 | 15 | O 1/2 |
| 17.8 | 55.9 | 15 1/4 | P |
| 18.1 | 56.9 | 16 | P 1/2 |
| 18.3 | 57.5 | - | Q |
| 18.5 | 58.1 | 17 | Q 1/2 |
| 18.8 | 59.1 | - | R |
| 18.9 | 59.4 | 18 | R 1/2 |
| 19.1 | 60.0 | 19 | S |
| 19.3 | 60.6 | 20 | - |
| 19.5 | 61.3 | - | S 1/2 |
| 19.6 | 61.6 | 21 | T |
| 19.8 | 62.2 | - | T 1/2 |
| 19.9 | 62.5 | - | U |
| 20 | 62.8 | 21 1/2 | U 1/2 |
| 20.2 | 63.5 | 22 | - |
| 20.3 | 63.8 | 22 1/2 | V |
| 20.6 | 64.7 | - | V 1/2 |
| 20.7 | 65.0 | 23 | W |
| 21 | 66.0 | 24 | W 1/2 |
| 21.2 | 66.6 | - | X |
| 21.3 | 66.9 | 25 | X 1/2 |
| 21.6 | 67.9 | 25 1/2 | Y |
| 21.8 | 68.5 | - | Y 1/2 |
| 21.9 | 68.8 | 26 | Z |
| 22.3 | 70.1 | 27 | Z 1/2 |
| 22.4 | 70.4 | - | Z+1 |
| 22.7 | 71.3 | 28 | Z+2 |
| 22.9 | 71.9 | 29 | Z+3 |
| 23.2 | 72.9 | - | Z+4 |
| 23.5 | 73.8 | 31 | Z+5 |
| 23.8 | 74.8 | 32 | Z+6 |
| 24.2 | 76.0 | 33 | Z+7 |
Tips For Measuring Ring Size
- Temperature causes an inaccurate reading while measuring your ring size. Your fingers will be half a size smaller when your hand is too cold, while it will be half a size bigger when it is too hot. Measure your finger in average temperatures, preferably at the end of the day when your fingers are at their largest.
- The wider band a ring has, the tighter you will feel. So, if you wish to order a band approximately 6 mm wide or more, move up a size from the standard ring size worn. Also, the rings with large stones may cause the band to be raised when laid on its side. Remember that you should order the next size up since it slightly distorts the size.
- If your knuckle is larger than the base of your finger, measure both your knuckle and the base of your finger and select the size between the two.
- Your ring should be snug enough not to fall off and loose enough to slide over your knuckle. If you hesitate between two sizes, always go with the larger one.
- Repeat measurement 3 to 4 times to eliminate an erroneous result.