4.2 m2 = 0.0000042 km2. To convert square meters to square kilometers, divide by 1,000,000: 4.2 ÷ 1,000,000 = 0.0000042.
How to convert square meters to square kilometers
km2 = m2 × 0.000001
- 1 m2 = 0.000001 km2 (and 1 km2 = 1,000,000 m2).
- Multiply the amount by the factor: 4.2 × 0.000001 = 0.0000042.
- Answer: 4.2 m2 = 0.0000042 km2.
Shortcut: dividing by 1,000,000 gives the same result as multiplying by 0.000001.
Square Meters to Square Kilometers table
| Square Meters (m2) | Square Kilometers (km2) |
|---|---|
| 3.7 m2 | 0.0000037 km2 |
| 3.8 m2 | 0.0000038 km2 |
| 3.9 m2 | 0.0000039 km2 |
| 4 m2 | 0.000004 km2 |
| 4.1 m2 | 0.0000041 km2 |
| 4.2 m2 | 0.0000042 km2 |
| 4.3 m2 | 0.0000043 km2 |
| 4.4 m2 | 0.0000044 km2 |
| 4.5 m2 | 0.0000045 km2 |
| 4.6 m2 | 0.0000046 km2 |
| 4.7 m2 | 0.0000047 km2 |
| m2 | km2 |
|---|---|
| 1 m2 | 0.000001 km2 |
| 5 m2 | 0.000005 km2 |
| 10 m2 | 0.00001 km2 |
| 50 m2 | 0.00005 km2 |
| 100 m2 | 0.0001 km2 |
| 1,000 m2 | 0.001 km2 |