km² to a
39 unitsResult1.000000e+4
10000a
1 km² × 10000 = 10000 a
Convert Square kilometer to Are (km² to a)
1 square kilometer = 10000 ares. Convert square kilometers to ares instantly, with the exact factor, the formula and a reference table of common values.
Formula
ares = square kilometers × 10000
km² to a conversion table
| km² | a |
|---|---|
| 1 km² | 10000 a |
| 2 km² | 20000 a |
| 3 km² | 30000 a |
| 5 km² | 50000 a |
| 10 km² | 100000 a |
| 20 km² | 200000 a |
| 50 km² | 500000 a |
| 100 km² | 1000000 a |
| 250 km² | 2500000 a |
| 500 km² | 5000000 a |
| 1000 km² | 10000000 a |
What is a square kilometer?
A square kilometer is a square one kilometer on each side: one million square meters. It is the unit used for cities, forests, lakes and countries.
For a feel of scale, Central Park in New York covers about 3.4 square kilometers, and a small town might spread over ten or twenty. One square kilometer is exactly 100 hectares.
In writing, the square kilometer is usually shortened to "km²". One square kilometer is 1000000 square meters, and that ratio is what every number on this page is built from.