How to Find Your Ring Size at Home
You do not need a shop to know your ring size. You can find it at home in five minutes. Here are two easy ways.
Method 1: Use a String
- Cut a thin piece of string or paper about 15 cm long.
- Wrap it around the base of your finger.
- Mark the spot where the ends meet.
- Lay the string flat on a ruler.
- Write down the length in millimeters. This is your finger size.
Method 2: Measure a Ring You Own
Take a ring that fits well. Measure the inside width from edge to edge in millimeters. This is called the diameter. Match it to the chart below.
Simple Size Chart
| Diameter (mm) | Around finger (mm) | US size |
|---|---|---|
| 14.8 | 46.5 | 4 |
| 15.7 | 49.3 | 5 |
| 16.5 | 51.8 | 6 |
| 17.3 | 54.4 | 7 |
| 18.1 | 56.9 | 8 |
| 19.0 | 59.5 | 9 |
Sizes can differ a little by country. Check the size chart of the shop you buy from.
Tips for the Best Result
- Measure at the end of the day. Fingers are a bit bigger then.
- Do not measure when your hands are very cold or hot.
- Measure the exact finger that will wear the ring.
- Wide rings fit tighter. Pick a half size up for them.
If You Are Between Sizes
Pick the bigger size. A ring that is a bit loose is better than one that is stuck. You can also ask a jeweler to add a small ring guard.
Frequently Asked Questions
Is my size the same on both hands?
Not always. Your main hand is often a little bigger.
Can a ring size change?
Yes. Weight, weather, and age can change it a little.
What if my knuckle is big?
Measure both your knuckle and your finger base. Pick a size that slides over the knuckle and does not fall off.