ft 에서 nm 변환기 - 피트 에서 나노미터

Conversion derivation

Express both ft and nm in the same base unit m (meter), then cancel the shared base unit.

1. 1

   Rewrite ft in the base unit

   $$1\mathrm{ft}=0.3048\mathrm{m}$$
2. 2

   Rewrite nm in the base unit

   $$1\mathrm{nm}=1\times 10^{-9}\mathrm{m}$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1\mathrm{ft}& =\frac{0.3048\cancel{\mathrm{m}}}{1\times 10^{-9}\cancel{\mathrm{m}}}\times 1\mathrm{nm}\\ & =\frac{0.3048}{1\times 10^{-9}}\mathrm{nm}\\ & =304,800,000\mathrm{nm}\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1\mathrm{nm}& =\frac{1\times 10^{-9}\cancel{\mathrm{m}}}{0.3048\cancel{\mathrm{m}}}\times 1\mathrm{ft}\\ & =\frac{1\times 10^{-9}}{0.3048}\mathrm{ft}\\ & =3.2808399\times 10^{-9}\mathrm{ft}\end{array}$$