A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work.
Petawatts to Watts
Convert Petawatt (PW) to Watt (W) instantly with an exact formula, conversion table, and FAQ.
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Convert petawatts (PW) to watts (W) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
W = PW × 1.000000e+15
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Formula
W = PW × 1.000000e+15
PW = W × 1.000000e-15
Conversion table
| 1 PW | 1.000000e+15 W |
| 5 PW | 5.000000e+15 W |
| 10 PW | 1.000000e+16 W |
| 20 PW | 2.000000e+16 W |
| 50 PW | 5.000000e+16 W |
| 100 PW | 1.000000e+17 W |
| 500 PW | 5.000000e+17 W |
| 1000 PW | 1.000000e+18 W |
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How the formula works
Both petawatt and watt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petawatts by 1.000000e+15 to get watts. To reverse the conversion, multiply a watt value by 1.000000e-15 to get back to petawatts.
Frequently asked questions
What is Petawatt (PW)?
A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work.
What is Watt (W)?
The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
How do I convert petawatts to watts?
Multiply the petawatt value by 1.000000e+15 to get the equivalent in watts. For example, 5 PW × 1.000000e+15 = 5.000000e+15 W.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+15 is an exact, non-rounded value.
Can I convert watts back to petawatts?
Yes. Divide the watt value by 1.000000e+15, or multiply it by 1.000000e-15, to get petawatts.
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About converting petawatts to watts
A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work. The watt (W) is the SI unit of power, equal to one joule of energy transferred per second.
Use this calculator to move between petawatts and watts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.