Finding your proper ring size is key to getting that perfect fit, but how can you accurately measure ring size on your own? With just a few simple tools, measuring ring size at home is easy.
Getting an accurate ring size measurement ensures your rings will be comfortable, functional, and stay in place. An improperly sized ring will spin, slide off, or even fall off your finger. Use this guide to learn how to measure ring size using common household items.
What You Need to Measure Ring Size
Measuring your ring size is simple with just a few items:
- Ring sizer or ring mandrel - This ring size tool is marked with a tapered cone showing ring sizes. Pick one up at any jewelry store.
- String, floss, or paper - Wrap this around your finger to measure circumference.
- Measuring tape - Use to calculate diameter and circumference.
- Pen and paper - To note down your ring size measurements.
Steps to Measure Ring Size at Home
Follow these steps to accurately measure your ring size:
- Use the ring mandrel to get an initial ring size estimate. Slide rings down the cone until one fits snugly but not too tight. Note where it stops on the ring size markings.
- For an exact size, wrap string, floss or paper tightly around the base of your finger. Mark where it overlaps.
- Use the measuring tape to measure the length of the string or paper. This gives your finger circumference.
- Divide the circumference by 3.14 to calculate the diameter.
- Match the diameter to a ring size using a ring size chart. Round to the nearest 1/4 or 1/2 size.
- Repeat on other fingers and hands for comparison. Knuckles are often wider so the base gives the best fit.
- Use the below chart to determine your ring size.
| Internal Diameter (mm) |
14.1 |
14.9 |
15.7 |
16.5 |
17.3 |
18.1 |
19 |
19.8 |
20.6 |
21.4 |
22.2 |
| Circumference (mm) |
44.2 |
46.8 |
49.3 |
51.9 |
54.4 |
57 |
59.5 |
62.1 |
64.6 |
67.2 |
67.7 |
| US/Canada Ring Size |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
| UK/Australia Ring Size |
F |
H |
J |
L |
N |
P |
R |
T |
V |
X |
Z |
| German Ring Size |
14 |
15 |
15 3/4 |
16 1/2 |
17 1/4 |
18 |
19 |
20 |
20 3/4 |
21 1/4 |
22 |
Tips for Measuring Ring Size Accurately
Follow these tips for the most precise ring size measurement:
- Measure at the end of the day when fingers are largest.
- Try on multiple rings in different sizes to verify fit.
- Test your dominant hand since it may be slightly bigger.
- Re-check every few years as fingers change over time.
- Have a jeweler double check for important rings.
Using this simple ring size measuring method, you can determine your size for hassle-free online ordering. With the right fit, rings will feel comfortable all day. Share your ring size results in the comments!
