Watt to Nanowatt Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert watts [W] to nanowatts [nW] or nanowatts [nW] to watts [W]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert watts to nanowatts
There are two simple ways to convert watts [W] to nanowatts [nW]. In the first calculation method, the value in watts [W] is divided by 10-9. The second method multiplies the value in watts [W] by 109.
- Nanowatts [nW] = watts [W] ÷ 10-9
- Nanowatts [nW] = watts [W] * 109
Convert nanowatts to watts
Converting nanowatts [nW] to watts [W] is easy and can be done in two ways. The first method involves multiplication, whereby the value in nanowatts [nW] is multiplied by 10-9. The second variant is a division. Here, the value in nanowatts [nW] is divided by 109.
- Watts [W] = nanowatts [nW] * 10-9
- Watts [W] = nanowatts [nW] ÷ 109
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