How to find your ring size at home
Whether you're buying a ring for yourself or as a gift, knowing the correct ring size is key. Here’s a simple guide to help you measure your finger at home!
Option 1: Use a Strip of Paper or String
What you’ll need:
- A thin strip of paper (or a piece of string)
- A ruler (millimeters preferred)
- A pen or pencil
Steps:
- Wrap the paper or string around the base of your finger.
- Mark the point where the end meets. (the string must be tight)
- Unwrap and lay it flat.
- Measure the length (in millimeters) from the start to the mark.
- Find your size using the chart below.

|
Circumference (mm) |
Ring Size (EU) |
|
47 mm |
47 |
|
48 mm |
48 |
|
49 mm |
49 |
|
50 mm |
50 |
|
51 mm |
51 |
|
52 mm |
52 |
|
53 mm |
53 |
|
54 mm |
54 |
|
55 mm |
55 |
|
56 mm |
56 |
|
57 mm |
57 |
|
58 mm |
58 |
|
59 mm |
59 |
|
60 mm |
60 |
|
61 mm |
61 |
|
62 mm |
62 |
|
63 mm |
63 |
|
64 mm |
64 |
|
65 mm |
65 |
|
66 mm |
66 |
|
67 mm |
67 |
Option 2: Measure an Existing Ring (the best)
If you already have a ring that fits the right finger, you can use it to find your size. This is the best method
What you’ll need:
- A ruler (millimeters)
- A ring that fits perfectly
Steps:
- Place the ring on a flat surface.
- Measure the inside diameter of the ring (not the outer edge).
- Use the chart below to match the diameter to a ring size.

By Ring Diameter (from Option 2)
|
Inside Diameter (mm) |
Ring Size (EU) |
Ring Size (US) |
|
14 |
44 |
3 |
|
14.5 |
46 |
3.75 |
|
15 |
47 |
4.25 |
|
15.5 |
48.5 |
4.5 |
|
16 |
50 |
5.25 |
|
16.5 |
52 |
6 |
|
17 |
53 |
6.5 |
|
17.5 |
55 |
7.25 |
|
18 |
57 |
8 |
|
18.5 |
58 |
8.5 |
|
19 |
59.5 |
9 |
|
19.5 |
61 |
9.5 |
|
20 |
62.5 |
10.25 |
|
20.5 |
64 |
10.75 |
|
21 |
66 |
11.5 |
|
21.5 |
67 |
12 |
|
22 |
69 |
12.75 |
Tips for Accurate Measuring
- Measure at the end of the day when your fingers are at their largest.
- Make sure your hands are warm (cold fingers shrink slightly).
- Don’t pull the paper or string too tight—it should fit snugly, not tightly.
- Measure the exact finger where the ring will go, as sizes can differ between fingers and hands.
Ring Size Conversion Chart (EU → US)
| EU Size | US Size |
|---|---|
| 49 | 5 |
| 50 | 5.25 |
| 51 | 5.5 |
| 52 | 6 |
| 53 | 6.25 |
| 54 | 6.5 |
| 55 | 7 |
| 56 | 7.25 |
| 57 | 7.5 |
| 58 | 8 |
| 59 | 8.25 |
| 60 | 8.5 |
| 61 | 9 |
| 62 | 9.25 |
| 63 | 9.5 |
| 64 | 10 |
| 65 | 10.25 |
| 66 | 10.5 |
| 67 | 11 |
| 68 | 11.25 |
| 69 | 11.5 |
| 70 | 12 |