mi2 to km2 Converter - Square Mile to Square Kilometer

Conversion derivation

Express both mi2 and km2 in the same base unit m2 (square meter), then cancel the shared base unit.

1. 1

   Rewrite mi2 in the base unit

   $$1mi2=2,589,988.11m2$$
2. 2

   Rewrite km2 in the base unit

   $$1km2=1,000,000m2$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1mi2& =\frac{2,589,988.11\cancel{m2}}{1,000,000\cancel{m2}}\times 1km2\\ & =\frac{2,589,988.11}{1,000,000}km2\\ & =2.58998811km2\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1km2& =\frac{1,000,000\cancel{m2}}{2,589,988.11\cancel{m2}}\times 1mi2\\ & =\frac{1,000,000}{2,589,988.11}mi2\\ & =0.386102158593mi2\end{array}$$