1 km2 to sqmi

Updated July 2026

1 km2 equals 0.386102 mi²

1 square kilometer = 0.386102 mi². That is how many square miles there are in 1 square kilometer. Enter any value in the free area converter to convert square kilometers to square miles (and every other unit) instantly — it runs privately in your browser.

Formula: Multiply by 0.386102 — 1 square kilometer = 0.386102 square miles. So 1 × 0.386102 = 0.386102 mi².

km2 to sqmi conversion table

square kilometer (km²)square miles (mi²)
0.25 km²0.096526 mi²
0.5 km²0.193051 mi²
0.75 km²0.289577 mi²
1 km²0.386102 mi²
1.25 km²0.482628 mi²
1.5 km²0.579153 mi²
1.75 km²0.675679 mi²

Frequently asked questions

How many square miles is 1 square kilometer?
1 square kilometer is 0.386102 square miles. Multiply km2 by 0.386102 to get sqmi.
What is 1 km2 to sqmi?
1 square kilometer = 0.386102 mi².
How do you convert km2 to sqmi?
Multiply by 0.386102 — 1 square kilometer = 0.386102 square miles. So 1 × 0.386102 = 0.386102 mi².

Other km2 to sqmi conversions

Convert 1 km2 to other units