Convert Mile per hour to Knot
Unit definitions
Mile per hour
A mile is a unit of length equivalent to $1\,609.344 \ \text{m}$. Mile per hour is the distance traveled in miles in one hour.
Knot
A nautical mile is a unit of length used in navigation and is equal to $1\,852$ meters. A knot is a unit of speed expressed in nautical miles per hour.
How to convert Mile per hour to Knot
$$\text{Speed}_{\text{kn}} = \text{Speed}_{\text{mph}} \cdot 0.8689762419006479481641468682505400$$
Examples
Example 1
Convert $45.0\ \text{mph}$ to $\text{kn}$.
$$\text{Speed}_{\text{kn}} = 45.0 \cdot 0.8689762419006479481641468682505400$$
$$\text{Speed}_{\text{kn}} = 39.103931$$
$$\therefore \ 45.0\ \text{mph} = 39.103931 \ \text{kn}$$
Example 2
Convert $60.0\ \text{mph}$ to $\text{kn}$.
$$\text{Speed}_{\text{kn}} = 60.0 \cdot 0.8689762419006479481641468682505400$$
$$\text{Speed}_{\text{kn}} = 52.138575$$
$$\therefore \ 60.0\ \text{mph} = 52.138575 \ \text{kn}$$
Example 3
Convert $120.0\ \text{mph}$ to $\text{kn}$.
$$\text{Speed}_{\text{kn}} = 120.0 \cdot 0.8689762419006479481641468682505400$$
$$\text{Speed}_{\text{kn}} = 104.277149$$
$$\therefore \ 120.0\ \text{mph} = 104.277149 \ \text{kn}$$
Example 4
Convert $150.0\ \text{mph}$ to $\text{kn}$.
$$\text{Speed}_{\text{kn}} = 150.0 \cdot 0.8689762419006479481641468682505400$$
$$\text{Speed}_{\text{kn}} = 130.346436$$
$$\therefore \ 150.0\ \text{mph} = 130.346436 \ \text{kn}$$
Example 5
Convert $200.0\ \text{mph}$ to $\text{kn}$.
$$\text{Speed}_{\text{kn}} = 200.0 \cdot 0.8689762419006479481641468682505400$$
$$\text{Speed}_{\text{kn}} = 173.795248$$
$$\therefore \ 200.0\ \text{mph} = 173.795248 \ \text{kn}$$