Convert Kilometer to Nanometer
Unit definitions
Kilometer
A kilometer is $1\,000$ meters in length.
Nanometer
$\frac{1}{10^{9}}$ of a meter is a nanometer.
How to convert Kilometer to Nanometer
$$\text{Length}_{\text{nm}} = \text{Length}_{\text{km}} \cdot {10}^{12}$$
Examples
Example 1
Convert $30.0\ \text{km}$ to $\text{nm}$.
$$\text{Length}_{\text{nm}} = 30.0 \cdot {10}^{12}$$
$$\text{Length}_{\text{nm}} = 30000000000000$$
$$\therefore \ 30.0\ \text{km} = 30000000000000 \ \text{nm}$$
Example 2
Convert $70.0\ \text{km}$ to $\text{nm}$.
$$\text{Length}_{\text{nm}} = 70.0 \cdot {10}^{12}$$
$$\text{Length}_{\text{nm}} = 70000000000000$$
$$\therefore \ 70.0\ \text{km} = 70000000000000 \ \text{nm}$$
Example 3
Convert $105.0\ \text{km}$ to $\text{nm}$.
$$\text{Length}_{\text{nm}} = 105.0 \cdot {10}^{12}$$
$$\text{Length}_{\text{nm}} = 105000000000000$$
$$\therefore \ 105.0\ \text{km} = 105000000000000 \ \text{nm}$$
Example 4
Convert $145.0\ \text{km}$ to $\text{nm}$.
$$\text{Length}_{\text{nm}} = 145.0 \cdot {10}^{12}$$
$$\text{Length}_{\text{nm}} = 145000000000000$$
$$\therefore \ 145.0\ \text{km} = 145000000000000 \ \text{nm}$$
Example 5
Convert $180.0\ \text{km}$ to $\text{nm}$.
$$\text{Length}_{\text{nm}} = 180.0 \cdot {10}^{12}$$
$$\text{Length}_{\text{nm}} = 180000000000000$$
$$\therefore \ 180.0\ \text{km} = 180000000000000 \ \text{nm}$$