Convert watts to gigawatts
1 W = 0.000000001 GW — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1e-9GW
Exact decimal: 0.000000001
As a fraction: 1/1000000000
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
1 W = 0.000000001 GW
Show this value in all 21 power units
- Terawatts TW 1e-12
- Gigawatts GW 1e-9
- Megawatts MW 0.000 001
- Kilowatts kW 0.001
- Watts W 1
- Milliwatts mW 1000
- Microwatts µW 1 000 000
- Nanowatts nW 1 000 000 000
- Horsepower (mechanical)s hp 0.001 341 022 089 6
- Horsepower (metric)s PS 0.001 359 621 617 3
- Horsepower (electric)s hp (E) 0.001 340 482 573 73
- Horsepower (boiler)s hp (S) 0.000 101 931 042 065
- BTU per hours BTU/h 3.412 141 633 13
- BTU per seconds BTU/s 0.000 947 817 120 313
- Ton of refrigerations RT 0.000 284 345 136 094
- Calorie per seconds cal/s 0.239 005 736 138
- Kilocalorie per hours kcal/h 0.860 420 650 096
- Foot-pound per seconds ft·lbf/s 0.737 562 149 277
- Erg per seconds erg/s 10 000 000
- Volt-amperes VA 1
- Kilovolt-amperes kVA 0.001
Every row is Watt (W) converted through the watt, in exact rational arithmetic.
How to convert watts to gigawatts
Multiply the number of watts by 0.000000001 to get gigawatts.
The exact factor is 0.000000001 — as a fraction, 1/1000000000.
Watt to Gigawatt conversion table
| Watts (W) | Gigawatts (GW) |
|---|---|
| 1 W | 1e-9 |
| 2 W | 2e-9 |
| 3 W | 3e-9 |
| 5 W | 5e-9 |
| 10 W | 1e-8 |
| 20 W | 2e-8 |
| 25 W | 2.5e-8 |
| 50 W | 5e-8 |
| 100 W | 0.000 000 1 |
| 250 W | 0.000 000 25 |
| 500 W | 0.000 000 5 |
| 1000 W | 0.000 001 |
Gigawatt to Watt conversion table
| Gigawatts (GW) | Watts (W) |
|---|---|
| 1 GW | 1 000 000 000 |
| 2 GW | 2 000 000 000 |
| 3 GW | 3 000 000 000 |
| 5 GW | 5 000 000 000 |
| 10 GW | 10 000 000 000 |
| 20 GW | 20 000 000 000 |
| 25 GW | 25 000 000 000 |
| 50 GW | 50 000 000 000 |
| 100 GW | 100 000 000 000 |
| 250 GW | 250 000 000 000 |
| 500 GW | 500 000 000 000 |
| 1000 GW | 1 000 000 000 000 |
Frequently asked
How many gigawatts are in a watt?
One watt equals 1e-9 gigawatts (W → GW). That figure is exact, not rounded.
How do you convert watts to gigawatts?
Multiply the number of watts by 0.000000001 to get gigawatts.
What is 1 GW in watts?
One gigawatt is 1000000000 watts.
What is 10 W in GW?
10 W = 1e-8 GW.