1 mm
10 mm
25.4 mm
100 mm
Millimeters (mm) and inches (in) are units of length measurement used in different systems:
To convert millimeters to inches:
Inches = Millimeters ÷ 25.4
To convert inches to millimeters:
Millimeters = Inches × 25.4
Millimeters are commonly used in:
Inches are commonly used in:
Type your measurement in millimeters in the input field.
Press the convert button or simply start typing - the result will update automatically.
Your result will appear instantly. Use the copy button to copy the result.
0 mm
0 inches
This conversion is based on the standard ratio: 1 inch = 25.4 millimeters
| Millimeters (mm) | Inches (in) | Millimeters (mm) | Inches (in) |
|---|---|---|---|
| 518.0 mm | 20.3937 in | 520.5 mm | 20.4921 in |
| 518.1 mm | 20.3976 in | 520.6 mm | 20.4961 in |
| 518.2 mm | 20.4016 in | 520.7 mm | 20.5000 in |
| 518.3 mm | 20.4055 in | 520.8 mm | 20.5039 in |
| 518.4 mm | 20.4094 in | 520.9 mm | 20.5079 in |
| 518.5 mm | 20.4134 in | 521.0 mm | 20.5118 in |
| 518.6 mm | 20.4173 in | 521.1 mm | 20.5157 in |
| 518.7 mm | 20.4213 in | 521.2 mm | 20.5197 in |
| 518.8 mm | 20.4252 in | 521.3 mm | 20.5236 in |
| 518.9 mm | 20.4291 in | 521.4 mm | 20.5276 in |
| 519.0 mm | 20.4331 in | 521.5 mm | 20.5315 in |
| 519.1 mm | 20.4370 in | 521.6 mm | 20.5354 in |
| 519.2 mm | 20.4409 in | 521.7 mm | 20.5394 in |
| 519.3 mm | 20.4449 in | 521.8 mm | 20.5433 in |
| 519.4 mm | 20.4488 in | 521.9 mm | 20.5472 in |
| 519.5 mm | 20.4528 in | 522.0 mm | 20.5512 in |
| 519.6 mm | 20.4567 in | 522.1 mm | 20.5551 in |
| 519.7 mm | 20.4606 in | 522.2 mm | 20.5591 in |
| 519.8 mm | 20.4646 in | 522.3 mm | 20.5630 in |
| 519.9 mm | 20.4685 in | 522.4 mm | 20.5669 in |
| 520.0 mm | 20.4724 in | 522.5 mm | 20.5709 in |
| 520.1 mm | 20.4764 in | 522.6 mm | 20.5748 in |
| 520.2 mm | 20.4803 in | 522.7 mm | 20.5787 in |
| 520.3 mm | 20.4843 in | 522.8 mm | 20.5827 in |
| 520.4 mm | 20.4882 in | 522.9 mm | 20.5866 in |