Convert Watt to Nanowatt
Unit definitions
Watt
The watt is the SI unit of power. It is defined as one joule per second ($1\ \text{W} = 1\ \text{J/s}$).
Nanowatt
$10^{-9}$ watts is a nanowatt.
How to convert Watt to Nanowatt
$$\text{Power}_{\text{nW}} = \text{Power}_{\text{W}} \cdot {10}^{9}$$
Examples
Example 1
Convert $20.0\ \text{W}$ to $\text{nW}$.
$$\text{Power}_{\text{nW}} = 20.0 \cdot {10}^{9}$$
$$\text{Power}_{\text{nW}} = 20000000000$$
$$\therefore \ 20.0\ \text{W} = 20000000000 \ \text{nW}$$
Example 2
Convert $70.0\ \text{W}$ to $\text{nW}$.
$$\text{Power}_{\text{nW}} = 70.0 \cdot {10}^{9}$$
$$\text{Power}_{\text{nW}} = 70000000000$$
$$\therefore \ 70.0\ \text{W} = 70000000000 \ \text{nW}$$
Example 3
Convert $115.0\ \text{W}$ to $\text{nW}$.
$$\text{Power}_{\text{nW}} = 115.0 \cdot {10}^{9}$$
$$\text{Power}_{\text{nW}} = 115000000000$$
$$\therefore \ 115.0\ \text{W} = 115000000000 \ \text{nW}$$
Example 4
Convert $130.0\ \text{W}$ to $\text{nW}$.
$$\text{Power}_{\text{nW}} = 130.0 \cdot {10}^{9}$$
$$\text{Power}_{\text{nW}} = 130000000000$$
$$\therefore \ 130.0\ \text{W} = 130000000000 \ \text{nW}$$
Example 5
Convert $160.0\ \text{W}$ to $\text{nW}$.
$$\text{Power}_{\text{nW}} = 160.0 \cdot {10}^{9}$$
$$\text{Power}_{\text{nW}} = 160000000000$$
$$\therefore \ 160.0\ \text{W} = 160000000000 \ \text{nW}$$