310 mm = 31 cm. To convert millimeters to centimeters, divide by 10: 310 ÷ 10 = 31.
How to convert millimeters to centimeters
cm = mm × 0.1
- 1 mm = 0.1 cm (and 1 cm = 10 mm).
- Multiply the amount by the factor: 310 × 0.1 = 31.
- Answer: 310 mm = 31 cm.
Shortcut: dividing by 10 gives the same result as multiplying by 0.1.
Millimeters to Centimeters table
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 305 mm | 30.5 cm |
| 306 mm | 30.6 cm |
| 307 mm | 30.7 cm |
| 308 mm | 30.8 cm |
| 309 mm | 30.9 cm |
| 310 mm | 31 cm |
| 311 mm | 31.1 cm |
| 312 mm | 31.2 cm |
| 313 mm | 31.3 cm |
| 314 mm | 31.4 cm |
| 315 mm | 31.5 cm |
| mm | cm |
|---|---|
| 1 mm | 0.1 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| 1,000 mm | 100 cm |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.