Convert Kilometer to Mile
Unit definitions
Kilometer
A kilometer is $1\,000$ meters in length.
Mile
A mile is $1\,609.344$ meters in length.
How to convert Kilometer to Mile
$$\text{Length}_{\text{mi}} = \text{Length}_{\text{km}} \cdot 0.6213711922373339696174341843633182$$
Examples
Example 1
Convert $40.0\ \text{km}$ to $\text{mi}$.
$$\text{Length}_{\text{mi}} = 40.0 \cdot 0.6213711922373339696174341843633182$$
$$\text{Length}_{\text{mi}} = 24.854848$$
$$\therefore \ 40.0\ \text{km} = 24.854848 \ \text{mi}$$
Example 2
Convert $90.0\ \text{km}$ to $\text{mi}$.
$$\text{Length}_{\text{mi}} = 90.0 \cdot 0.6213711922373339696174341843633182$$
$$\text{Length}_{\text{mi}} = 55.923407$$
$$\therefore \ 90.0\ \text{km} = 55.923407 \ \text{mi}$$
Example 3
Convert $100.0\ \text{km}$ to $\text{mi}$.
$$\text{Length}_{\text{mi}} = 100.0 \cdot 0.6213711922373339696174341843633182$$
$$\text{Length}_{\text{mi}} = 62.137119$$
$$\therefore \ 100.0\ \text{km} = 62.137119 \ \text{mi}$$
Example 4
Convert $145.0\ \text{km}$ to $\text{mi}$.
$$\text{Length}_{\text{mi}} = 145.0 \cdot 0.6213711922373339696174341843633182$$
$$\text{Length}_{\text{mi}} = 90.098823$$
$$\therefore \ 145.0\ \text{km} = 90.098823 \ \text{mi}$$
Example 5
Convert $180.0\ \text{km}$ to $\text{mi}$.
$$\text{Length}_{\text{mi}} = 180.0 \cdot 0.6213711922373339696174341843633182$$
$$\text{Length}_{\text{mi}} = 111.846815$$
$$\therefore \ 180.0\ \text{km} = 111.846815 \ \text{mi}$$