Square Kilometres to Square Miles

Convert square kilometres (km²) to square miles (mi²) instantly — with formula and reference table.

Quick answer: 1 km² = 0.386102 mi². To convert square kilometres to square miles, multiply by km² × 0.386102.

Converting square kilometres to square miles

This converter changes a value in square kilometres (km²) into square miles (mi²). One square kilometre equals 0.386102 mi². One square kilometre equals 0.386 square miles. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.

Formula

mi² = km² × 0.386102

Example

Convert 10 km² to mi²: 10 × 0.386102 = 3.861022 mi².

Square Kilometres to Square Miles conversion table

Popular square kilometres to square miles conversions

Quick answers for the km² values people look up most often:

• 4 km² = 1.5444 mi²
• 6 km² = 2.3166 mi²
• 7 km² = 2.7027 mi²
• 8 km² = 3.0888 mi²
• 9 km² = 3.4749 mi²
• 12 km² = 4.6332 mi²
• 15 km² = 5.7915 mi²
• 30 km² = 11.5831 mi²
• 40 km² = 15.4441 mi²
• 60 km² = 23.1661 mi²
• 75 km² = 28.9577 mi²
• 80 km² = 30.8882 mi²
• 90 km² = 34.7492 mi²
• 150 km² = 57.9153 mi²
• 200 km² = 77.2204 mi²
• 250 km² = 96.5255 mi²
• 500 km² = 193.0511 mi²
• 1000 km² = 386.1022 mi²

How to use this converter

1. Enter a value in the square kilometres (km²) field.
2. Read the converted value in square miles (mi²) below.
3. Type into the mi² field instead to convert in reverse, or use the swap button.

Frequently asked questions

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