80.4 cm = 804 mm. To convert centimeters to millimeters, multiply by 10: 80.4 × 10 = 804.
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: 80.4 × 10 = 804.
- Answer: 80.4 cm = 804 mm.
Centimeters to Millimeters table
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 79.9 cm | 799 mm |
| 80 cm | 800 mm |
| 80.1 cm | 801 mm |
| 80.2 cm | 802 mm |
| 80.3 cm | 803 mm |
| 80.4 cm | 804 mm |
| 80.5 cm | 805 mm |
| 80.6 cm | 806 mm |
| 80.7 cm | 807 mm |
| 80.8 cm | 808 mm |
| 80.9 cm | 809 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.