18 km2 ≈ 6.9498 mi2. To convert square kilometers to square miles, multiply by 0.38610216: 18 × 0.38610216 = 6.9498.
How to convert square kilometers to square miles
mi2 = km2 × 0.38610216
- 1 km2 = 0.38610216 mi2 (and 1 mi2 = 2.5899881 km2).
- Multiply the amount by the factor: 18 × 0.38610216 = 6.9498.
- Answer: 18 km2 ≈ 6.9498 mi2 (rounded to 6 significant figures).
Square Kilometers to Square Miles table
| Square Kilometers (km2) | Square Miles (mi2) |
|---|---|
| 13 km2 | 5.0193 mi2 |
| 14 km2 | 5.4054 mi2 |
| 15 km2 | 5.7915 mi2 |
| 16 km2 | 6.1776 mi2 |
| 17 km2 | 6.5637 mi2 |
| 18 km2 | 6.9498 mi2 |
| 19 km2 | 7.3359 mi2 |
| 20 km2 | 7.722 mi2 |
| 21 km2 | 8.1081 mi2 |
| 22 km2 | 8.4942 mi2 |
| 23 km2 | 8.8803 mi2 |
| km2 | mi2 |
|---|---|
| 1 km2 | 0.386102 mi2 |
| 5 km2 | 1.9305 mi2 |
| 10 km2 | 3.861 mi2 |
| 50 km2 | 19.3051 mi2 |
| 100 km2 | 38.6102 mi2 |
| 1,000 km2 | 386.102 mi2 |