Square Miles to Square Kilometers

Convert Square Miles to Square Kilometers. 1 mi² equals 2.59 km². Type a value on either side; the formula and tables below show how it works.

1 Square Miles equals

2.59km²

Formula: km² = mi² × 2.59. Example: 5 mi² = 12.9499 km².

1 Square Miles in every unit

Square Meters	2,589,988.11 m²
Square Feet	27,878,400 ft²
Square Yards	3,097,600 yd²
Square Inches	4,014,489,600 in²
Square Kilometers	2.59 km²
Acres	640 ac
Hectares	258.9988 ha

Square Miles

Square Kilometers

0.1 mi²

0.258999 km²

0.25 mi²

0.647497 km²

0.5 mi²

1.295 km²

1 mi²

2.59 km²

2 mi²

5.18 km²

3 mi²

7.77 km²

4 mi²

10.36 km²

5 mi²

12.9499 km²

10 mi²

25.8999 km²

15 mi²

38.8498 km²

20 mi²

51.7998 km²

25 mi²

64.7497 km²

50 mi²

129.4994 km²

75 mi²

194.2491 km²

100 mi²

258.9988 km²

250 mi²

647.497 km²

500 mi²

1,294.99 km²

1,000 mi²

2,589.99 km²

Square Kilometers

Square Miles

0.1 km²

0.03861 mi²

0.25 km²

0.096526 mi²

0.5 km²

0.193051 mi²

1 km²

0.386102 mi²

2 km²

0.772204 mi²

3 km²

1.1583 mi²

4 km²

1.5444 mi²

5 km²

1.9305 mi²

10 km²

3.861 mi²

15 km²

5.7915 mi²

20 km²

7.722 mi²

25 km²

9.6526 mi²

50 km²

19.3051 mi²

75 km²

28.9577 mi²

100 km²

38.6102 mi²

250 km²

96.5255 mi²

500 km²

193.0511 mi²

1,000 km²

386.1022 mi²

How to convert square miles to square kilometers

km² = mi² × 2.59

Multiply the value in square miles by 2.59. To go the other way, divide by the same number, or multiply by 0.386102. For example, 5 mi² × 2.59 = 12.9499 km².

About the units

Square Miles (mi²). 640 acres. Land area in the US.

Square Kilometers (km²). Cities, countries and lakes.

Other area conversions

Square Meters to Square Kilometers · Square Feet to Square Kilometers · Square Yards to Square Kilometers · Square Inches to Square Kilometers · Square Kilometers to Square Meters · Square Kilometers to Square Feet · Square Kilometers to Square Yards · Square Kilometers to Square Inches · Square Kilometers to Square Miles · Square Kilometers to Acres · Square Kilometers to Hectares · Square Miles to Square Meters · Square Miles to Square Feet · Square Miles to Square Yards · Square Miles to Square Inches · Square Miles to Square Kilometers · Square Miles to Acres · Square Miles to Hectares · Acres to Square Kilometers · Hectares to Square Kilometers

Square Miles to Square Kilometers

1 Square Miles in every unit