How to Convert Millimeters to Inches
To convert millimeters to inches, divide the value by 25.4.
The Formula
Inches = Millimeters ÷ 25.4
Key Fact
1 inch = 25.4 millimeters
Tip: To convert inches back to millimeters, multiply by 25.4.
Millimeters to Inches
Convert millimeters (mm) to inches (in) with formulas, examples, and conversion tables.
mm
in
1 mm = 0.03937 in
Full precision:0.03937 in
Step-by-Step Solution
To convert 1 millimeters to inches, we divide by 25.4 because one inch equals exactly 25.4 millimeters.
1 inch = 25.4 millimeters
Since there are 25.4 millimeters in every inch, we divide our value by this factor:
1 ÷ 25.4 = 0.03937 inches
So 1 millimeters = 0.03937 inches.
Quick check: 0.03937 × 25.4 = 1 millimeters
Example Conversions
Example 1: 1 mm = 0.03937 in
1 ÷ 25.4 = 0.03937
1 ÷ 25.4 = 0.03937
Example 2: 5 mm = 0.19685 in
5 ÷ 25.4 = 0.19685
5 ÷ 25.4 = 0.19685
Example 3: 10 mm = 0.3937 in
10 ÷ 25.4 = 0.3937
10 ÷ 25.4 = 0.3937
Millimeters to Inches Table
| Millimeters | Inches |
|---|---|
| 1 mm | 0.03937 in |
| 2 mm | 0.07874 in |
| 5 mm | 0.19685 in |
| 10 mm | 0.3937 in |
| 20 mm | 0.7874 in |
| 25 mm | 0.98425 in |
| 50 mm | 1.9685 in |
| 100 mm | 3.937 in |
| 250 mm | 9.8425 in |
| 500 mm | 19.6851 in |
| 1000 mm | 39.3701 in |
1 Millimeter in Other Units
| Unit | 1 mm = |
|---|---|
| Millimeters to Points | 2.8346 pt |
| Millimeters to Picas | 0.23622 pc |
| Millimeters to Inches | 0.03937 in |
| Millimeters to Centimeters | 0.1 cm |
| Millimeters to Pixels | 3.7795 px |
| Millimeters to Ems | 0.23622 em |
| Millimeters to Root Ems | 0.23622 rem |
| Millimeters to Twips | 56.693 twip |
| Millimeters to Ciceros | 0.22167 cc |
| Millimeters to Didot Points | 2.6492 dd |