Square Miles to Square Kilometers

Convert square miles (mi²) to square kilometers (km²) with formulas, examples, and conversion tables.

Square Miles (mi²)

mi²

Square Kilometers (km²)

km²

1 mi² = 2.59 km²

Full precision:2.59 km²

Step-by-Step Solution

To convert 1 square miles to square kilometers, we multiply by 2.59 because one square mile equals exactly 2.59 square kilometers.

1 square mile = 2.59 square kilometers

Since each square mile contains 2.59 square kilometers, we multiply our value by this factor:

1 × 2.59 = 2.59 square kilometers

So 1 square miles = 2.59 square kilometers.

✓Quick check: 2.59 ÷ 2.59 = 1 square miles

How to Convert Square Miles to Square Kilometers

To convert square miles to square kilometers, multiply the value by 2.59.

Square Kilometers = Square Miles × 2.59

1 square mile = 2.59 square kilometers

Tip: To convert square kilometers back to square miles, divide by 2.59.

Example 1: 1 mi² = 2.59 km²
1 × 2.59 = 2.59

Example 2: 5 mi² = 12.9499 km²
5 × 2.59 = 12.9499

Example 3: 10 mi² = 25.8999 km²
10 × 2.59 = 25.8999

Unit	1 mi² =
Square Miles to Square Kilometers	2.59 km²
Square Miles to Hectares	258.999 ha
Square Miles to Square Meters	2589988.11 m²
Square Miles to Square Centimeters	2.59e+10 cm²
Square Miles to Square Millimeters	2.59e+12 mm²
Square Miles to Acres	639.999 ac
Square Miles to Square Yards	3097601.33 yd²
Square Miles to Square Feet	27878412 ft²
Square Miles to Square Inches	4014489599.48 in²
Square Miles to Ares	25899.88 a
Square Miles to Barns	2.59e+34 b