picowatt to gigawatt
Convert picowatt (pW) to gigawatt (GW). Use an editable power converter, conversion formula, and reference table.
1 pW = 1e-21 GW
Conversion formula
One picowatt equals 1e-21 gigawatt. Multiply your value in picowatt by this factor to get gigawatt. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 picowatt:5 × 1e-21 = 5e-21 GW
Conversion table
| picowatt (pW) | gigawatt (GW) |
|---|---|
| 0.01 | 1e-23 |
| 0.1 | 1e-22 |
| 1 | 1e-21 |
| 2 | 2e-21 |
| 5 | 5e-21 |
| 10 | 1e-20 |
| 25 | 2.5e-20 |
| 50 | 5e-20 |
| 100 | 1e-19 |
| 1000 | 1e-18 |
About these measurements
Power is the rate of energy transfer.
The base reference used here is the watt. One picowatt is 1e-12 base units; one gigawatt is 1,000,000,000 base units.
Important distinctions
Mechanical horsepower and metric horsepower are distinct units.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert pW to GW?
Multiply the quantity in pW by 1e-21. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the gigawatt to picowatt converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
