400 m = 0.4 km. To convert meters to kilometers, divide by 1,000: 400 ÷ 1,000 = 0.4.
How to convert meters to kilometers
km = m × 0.001
- 1 m = 0.001 km (and 1 km = 1,000 m).
- Multiply the amount by the factor: 400 × 0.001 = 0.4.
- Answer: 400 m = 0.4 km.
Shortcut: dividing by 1,000 gives the same result as multiplying by 0.001.
Meters to Kilometers table
| Meters (m) | Kilometers (km) |
|---|---|
| 395 m | 0.395 km |
| 396 m | 0.396 km |
| 397 m | 0.397 km |
| 398 m | 0.398 km |
| 399 m | 0.399 km |
| 400 m | 0.4 km |
| 401 m | 0.401 km |
| 402 m | 0.402 km |
| 403 m | 0.403 km |
| 404 m | 0.404 km |
| 405 m | 0.405 km |
| m | km |
|---|---|
| 1 m | 0.001 km |
| 5 m | 0.005 km |
| 10 m | 0.01 km |
| 50 m | 0.05 km |
| 100 m | 0.1 km |
| 1,000 m | 1 km |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.