ha to mi2 Converter - Hectare to Square Mile

Conversion derivation

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

1. 1

   Rewrite ha in the base unit

   $$1\mathrm{ha}=10,000m2$$
2. 2

   Rewrite mi2 in the base unit

   $$1mi2=2,589,988.11m2$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1\mathrm{ha}& =\frac{10,000\cancel{m2}}{2,589,988.11\cancel{m2}}\times 1mi2\\ & =\frac{10,000}{2,589,988.11}mi2\\ & =0.003861021586mi2\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1mi2& =\frac{2,589,988.11\cancel{m2}}{10,000\cancel{m2}}\times 1\mathrm{ha}\\ & =\frac{2,589,988.11}{10,000}\mathrm{ha}\\ & =258.998811\mathrm{ha}\end{array}$$