| 1 km2, sq km | = 10000000000 cm2, sq cm |
| 2 km2, sq km | = 20000000000 cm2, sq cm |
| 3 km2, sq km | = 30000000000 cm2, sq cm |
| 4 km2, sq km | = 40000000000 cm2, sq cm |
| 5 km2, sq km | = 50000000000 cm2, sq cm |
| 6 km2, sq km | = 60000000000 cm2, sq cm |
| 7 km2, sq km | = 70000000000 cm2, sq cm |
| 8 km2, sq km | = 80000000000 cm2, sq cm |
| 9 km2, sq km | = 90000000000 cm2, sq cm |
| 10 km2, sq km | = 100000000000 cm2, sq cm |
| 20 km2, sq km | = 200000000000 cm2, sq cm |
| 30 km2, sq km | = 300000000000 cm2, sq cm |
| 40 km2, sq km | = 400000000000 cm2, sq cm |
| 50 km2, sq km | = 500000000000 cm2, sq cm |
| 60 km2, sq km | = 600000000000 cm2, sq cm |
| 70 km2, sq km | = 700000000000 cm2, sq cm |
| 80 km2, sq km | = 800000000000 cm2, sq cm |
| 90 km2, sq km | = 900000000000 cm2, sq cm |
| 100 km2, sq km | = 1000000000000 cm2, sq cm |
| 200 km2, sq km | = 2000000000000 cm2, sq cm |
| 300 km2, sq km | = 3000000000000 cm2, sq cm |
| 400 km2, sq km | = 4000000000000 cm2, sq cm |
| 500 km2, sq km | = 5000000000000 cm2, sq cm |
| 600 km2, sq km | = 6000000000000 cm2, sq cm |
| 700 km2, sq km | = 7000000000000 cm2, sq cm |
| 800 km2, sq km | = 8000000000000 cm2, sq cm |
| 900 km2, sq km | = 9000000000000 cm2, sq cm |
| 1000 km2, sq km | = 10000000000000 cm2, sq cm |
| 2000 km2, sq km | = 20000000000000 cm2, sq cm |
| 4000 km2, sq km | = 40000000000000 cm2, sq cm |
| 5000 km2, sq km | = 50000000000000 cm2, sq cm |
| 7500 km2, sq km | = 75000000000000 cm2, sq cm |
| 10000 km2, sq km | = 1.0E+14 cm2, sq cm |
| 25000 km2, sq km | = 2.5E+14 cm2, sq cm |
| 50000 km2, sq km | = 5.0E+14 cm2, sq cm |
| 100000 km2, sq km | = 1.0E+15 cm2, sq cm |
| 1000000 km2, sq km | = 1.0E+16 cm2, sq cm |
| 1000000000 km2, sq km | = 1.0E+19 cm2, sq cm |