1 Square Kilometers to Square Miles
1 Square Kilometers in Square Miles
0.386102 Square Miles
1 Square Kilometers = 0.386102 Square Miles
1 square kilometers is equal to 0.386102 square miles.
Quick reference
More area conversions
Square Miles → Square Kilometers
Square Feet → Square MetersSquare Meters → Square FeetAcres → HectaresHectares → AcresSquare Miles → Square Kilometers All converters
Frequently asked questions
What is the exact formula for Square Kilometers to Square Miles?
Multiply the Square Kilometers value by 0.38610216. This comes from the exact unit definitions, not a rounded approximation.
Is this conversion exact?
The underlying ratio is exact where a legal definition exists (for example, 1 inch = 25.4 mm exactly). Displayed results are rounded to six decimal places for readability.
Can I convert Square Miles back to Square Kilometers?
Yes. Use the reverse converter linked below, or just swap which field you type into: the live converter recalculates either direction.