Square kilometer to Square mile

1 km² = 0.38610216 mi²

Value

From

Precision & format

Significant figures

Notation

1 km² equals

0.3861021585mi²

All 15 units

Square meterm²
1,000,000
Square kilometerkm²
1
Square centimetercm²
10,000,000,000
Square millimetermm²
1,000,000,000,000
Hectareha
100
Area
10,000
Square milemi²
0.3861021585
Square yardyd²
1,195,990.046
Square footft²
10,763,910.42
Square inchin²
1,550,003,100
Acreac
247.1053815
Roodrood
¼ acre
988.4215259
Sectionsection
1 mi²
0.3861021585
Townshiptwp
36 mi²
0.01072505996
Barnb
nuclear cross-section
1 × 10³⁴

Square kilometer to Square mile table

Common Square kilometer values converted to Square mile
Square kilometer (km²)	Square mile (mi²)
1	0.38610216
2	0.77220432
5	1.9305108
10	3.8610216
20	7.7220432
50	19.305108
100	38.610216
250	96.52554
500	193.05108
1,000	386.10216

How the conversion works

Multiply the square kilometer figure by 0.3861021585 to get square mile. Every factor on this site is anchored to the SI base unit for area, so the same number is used everywhere it appears.

Going the other way, 1 mi² = 2.5899881 km² — see square mile to square kilometer.

See all 15 area units →