acre から ha 変換ツール - エーカー から ヘクタール

Conversion derivation

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

1. 1

   Rewrite acre in the base unit

   $$1\mathrm{acre}=4,046.86{\mathrm{m}}^2$$
2. 2

   Rewrite ha in the base unit

   $$1\mathrm{ha}=10,000{\mathrm{m}}^2$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1\mathrm{acre}& =\frac{4,046.86\cancel{{\mathrm{m}}^2}}{10,000\cancel{{\mathrm{m}}^2}}\times 1\mathrm{ha}\\ & =\frac{4,046.86}{10,000}\mathrm{ha}\\ & =0.404686\mathrm{ha}\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1\mathrm{ha}& =\frac{10,000\cancel{{\mathrm{m}}^2}}{4,046.86\cancel{{\mathrm{m}}^2}}\times 1\mathrm{acre}\\ & =\frac{10,000}{4,046.86}\mathrm{acre}\\ & =2.47105163015\mathrm{acre}\end{array}$$