cm2 から in2 変換ツール - 平方センチメートル から 平方インチ

Conversion derivation

Express both cm2 and in2 in the same base unit m2 (square meter), then cancel the shared base unit.

1. 1

   Rewrite cm2 in the base unit

   $$1cm2=0.0001m2$$
2. 2

   Rewrite in2 in the base unit

   $$1in2=0.00064516m2$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1cm2& =\frac{0.0001\cancel{m2}}{0.00064516\cancel{m2}}\times 1in2\\ & =\frac{0.0001}{0.00064516}in2\\ & =0.155000310001in2\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1in2& =\frac{0.00064516\cancel{m2}}{0.0001\cancel{m2}}\times 1cm2\\ & =\frac{0.00064516}{0.0001}cm2\\ & =6.4516cm2\end{array}$$