in² to km² Converter - Square Inch to Square Kilometer

Conversion derivation

Express both in² and km² 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 km² in the base unit

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

   Forward conversion

   $$\begin{array}{rl}1\mathrm{i}{\mathrm{n}}^2& =\frac{0.00064516\cancel{{\mathrm{m}}^2}}{1,000,000\cancel{{\mathrm{m}}^2}}\times 1\mathrm{k}{\mathrm{m}}^2\\ & =\frac{0.00064516}{1,000,000}\mathrm{k}{\mathrm{m}}^2\\ & =6.4516\times 10^{-10}\mathrm{k}{\mathrm{m}}^2\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1\mathrm{k}{\mathrm{m}}^2& =\frac{1,000,000\cancel{{\mathrm{m}}^2}}{0.00064516\cancel{{\mathrm{m}}^2}}\times 1\mathrm{i}{\mathrm{n}}^2\\ & =\frac{1,000,000}{0.00064516}\mathrm{i}{\mathrm{n}}^2\\ & =1.5500031\times 10^9\mathrm{i}{\mathrm{n}}^2\end{array}$$