Printable Ring Sizer
Print this page to get an accurate ring measuring tool you can use at home. Place an existing ring over the circles to find your size.
Ring Size Guide — Printable Ring Sizer
Place your ring over the circles below. The circle that matches the inside of your ring is your size.
Scale Verification
This line should measure exactly 50 mm. If not, adjust your print settings.
US 3
14 mm
US 4
14.8 mm
US 5
15.6 mm
US 6
16.5 mm
US 7
17.3 mm
US 8
18.1 mm
US 9
18.9 mm
US 10
19.6 mm
US 11
20.4 mm
US 12
21.2 mm
US 13
22 mm
US 14
22.6 mm
US 15
23.4 mm
Print at 100% scale — do not use “Fit to Page”. Verify scale with the 50 mm line above.
ringsizelab.com — Free Ring Size Tools
How to Use the Printable Ring Sizer
Print at 100% Scale
Click the “Print This Page” button above. In your print dialog, make sure scaling is set to 100% or “Actual Size”. Do not use “Fit to Page” as it will change the size of the circles.
Verify the Scale
Use a ruler to measure the verification line printed on the page. It should measure exactly the length indicated. If it doesn't, adjust your print settings and try again.
Place Your Ring
Place an existing ring that fits the desired finger over the printed circles. The correct size is the circle that best matches the inside edge of your ring.
Note Your Size
The size label next to the matching circle is your ring size. If your ring falls between two circles, choose the larger size for a more comfortable fit.
Important Tips
- Always print at 100% scale— never “Fit to Page” or “Shrink to Fit”.
- Use a flat, hard surface when placing your ring on the printout.
- If you don't have an existing ring, use our How to Measure Ring Size guide for alternative methods.
- For the most accurate results, verify with a professional jeweler.