in² から ft² 変換ツール - 平方インチ から 平方フィート

Conversion derivation

Express both in² and ft² in the same base unit m² (square meter), then cancel the shared base unit.

1. 1

   Rewrite in² in the base unit

   $$1\mathrm{i}{\mathrm{n}}^2=0.00064516{\mathrm{m}}^2$$
2. 2

   Rewrite ft² in the base unit

   $$1\mathrm{f}{\mathrm{t}}^2=0.092903{\mathrm{m}}^2$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1\mathrm{i}{\mathrm{n}}^2& =\frac{0.00064516\cancel{{\mathrm{m}}^2}}{0.092903\cancel{{\mathrm{m}}^2}}\times 1\mathrm{f}{\mathrm{t}}^2\\ & =\frac{0.00064516}{0.092903}\mathrm{f}{\mathrm{t}}^2\\ & =0.006944447434\mathrm{f}{\mathrm{t}}^2\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1\mathrm{f}{\mathrm{t}}^2& =\frac{0.092903\cancel{{\mathrm{m}}^2}}{0.00064516\cancel{{\mathrm{m}}^2}}\times 1\mathrm{i}{\mathrm{n}}^2\\ & =\frac{0.092903}{0.00064516}\mathrm{i}{\mathrm{n}}^2\\ & =143.999938\mathrm{i}{\mathrm{n}}^2\end{array}$$