Square kilometers to Square miles Converter
Convert km² to mi² instantly — and see every other area unit at once.
1 km²=0.386102 mi²
1 km² in every unit
Square millimeters
1,000,000,000,000mm²
Square centimeters
10,000,000,000cm²
Square meters
1,000,000m²
Square kilometersfrom
1km²
Hectares
100ha
Square inches
1,550,003,100.01in²
Square feet
10,763,915.05ft²
Square yards
1,195,990.56yd²
Acres
247.1054ac
Square miles
0.386102mi²
Common Square kilometers to Square miles conversions
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 1 km² | 0.3861 mi² |
| 2 km² | 0.7722 mi² |
| 5 km² | 1.93051 mi² |
| 10 km² | 3.86102 mi² |
| 25 km² | 9.65255 mi² |
| 50 km² | 19.30511 mi² |
| 100 km² | 38.61022 mi² |
| 250 km² | 96.52554 mi² |
| 500 km² | 193.05108 mi² |
| 1000 km² | 386.10216 mi² |
The formula
Square kilometers (km²) — a unit of area.
Square miles (mi²) — a unit of area.
Worked examples
1 km²→0.3861 mi²
Apply Square kilometers ÷ 2.58999 with input = 1. Result: 0.3861 mi².
5 km²→1.93051 mi²
Apply Square kilometers ÷ 2.58999 with input = 5. Result: 1.93051 mi².
10 km²→3.86102 mi²
Apply Square kilometers ÷ 2.58999 with input = 10. Result: 3.86102 mi².
FAQ
How do I convert Square kilometers to Square miles?
Use the formula: mi² = Square kilometers ÷ 2.58999. You can also use the converter above — type any value and the result updates instantly.
Where are Square kilometers used?
Square kilometers (km²) — a unit of area.
Where are Square miles used?
Square miles (mi²) — a unit of area.