342 cm = 3,420 mm. To convert centimeters to millimeters, multiply by 10: 342 × 10 = 3,420.
How to convert centimeters to millimeters
mm = cm × 10
- 1 cm = 10 mm (and 1 mm = 0.1 cm).
- Multiply the amount by the factor: 342 × 10 = 3,420.
- Answer: 342 cm = 3,420 mm.
Centimeters to Millimeters table
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 337 cm | 3,370 mm |
| 338 cm | 3,380 mm |
| 339 cm | 3,390 mm |
| 340 cm | 3,400 mm |
| 341 cm | 3,410 mm |
| 342 cm | 3,420 mm |
| 343 cm | 3,430 mm |
| 344 cm | 3,440 mm |
| 345 cm | 3,450 mm |
| 346 cm | 3,460 mm |
| 347 cm | 3,470 mm |
| cm | mm |
|---|---|
| 1 cm | 10 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 50 cm | 500 mm |
| 100 cm | 1,000 mm |
| 1,000 cm | 10,000 mm |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.