Press-On Nail Size Calculator
Enter nail widths to find the best press-on nail size
Enter Nail Width
Measure at the widest part of the nail
Fill in just one finger to see a size instantly; more fingers means more accuracy.
Thumb
mm
Index
mm
Middle
mm
Ring
mm
Pinky
mm
No ruler handy?
Wrap a strip of paper around the widest part of the nail, mark where it overlaps, then flatten it and compare against a credit card's length (85.6mm) to estimate millimeters; or compare nail width against a coin of known diameter (about 24mm for a US quarter). Most people's index finger is about 11-13mm and middle finger about 11-12mm.
Size Chart
| Size | Thumb | Index | Middle | Ring | Pinky |
|---|---|---|---|---|---|
| XS | 12-13mm | 10-11mm | 9-10mm | 8-9mm | 6-7mm |
| S | 14-15mm | 11-12mm | 10-11mm | 9-10mm | 7-8mm |
| M | 16-17mm | 12-13mm | 11-12mm | 10-11mm | 8-9mm |
| L | 18-19mm | 13-14mm | 12-13mm | 11-12mm | 9-10mm |
| XL | 20-21mm | 14-15mm | 13-14mm | 12-13mm | 10-11mm |
How to Measure Correctly
1
Prepare a soft tape or ruler
2
Lay it flat across the widest part of the nail (near the nail bed)
3
Record the value in millimeters (mm)
4
Measure both hands and use the larger value
Buying Tips
Size Recommendation
Recommended Size
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Specific Numbers
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Fit by Finger
About the Press-On Nail Size Calculator
This calculator matches nail widths to common press-on nail set sizes and individual 0-9 tip numbers. It helps reduce sizing mistakes before buying press-on nails online.
How to Use
- Measure the widest part of each nail in millimeters.
- Enter one or more nail widths.
- Review the recommended set size and individual tip numbers.
- Check the brand's official size chart before ordering.
Frequently Asked Questions
Where should I measure?
Measure the widest part of the nail, usually near the nail bed. Keep the ruler flat across the nail surface.
What if my left and right hands differ?
Use the larger measurement. Press-on nails can be filed smaller, but they cannot be made wider.
Do brands vary?
Yes. Brand charts may differ by 1-2 mm, so use this result as a starting point and confirm before purchase.
Related Calculators
For other fit and size checks, use the ring size calculator or the shoe size converter.
