A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
Milliwatts to Petawatts
Convert Milliwatt (mW) to Petawatt (PW) instantly with an exact formula, conversion table, and FAQ.
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Convert milliwatts (mW) to petawatts (PW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work.
PW = mW × 1.000000e-18
Results update instantly for Milliwatts to Petawatts conversions.
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Formula
PW = mW × 1.000000e-18
mW = PW × 1.000000e+18
Conversion table
| 1 mW | 1.000000e-18 PW |
| 5 mW | 5.000000e-18 PW |
| 10 mW | 1.000000e-17 PW |
| 20 mW | 2.000000e-17 PW |
| 50 mW | 5.000000e-17 PW |
| 100 mW | 1.000000e-16 PW |
| 500 mW | 5.000000e-16 PW |
| 1000 mW | 1.000000e-15 PW |
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How the formula works
Both milliwatt and petawatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in milliwatts by 1.000000e-18 to get petawatts. To reverse the conversion, multiply a petawatt value by 1.000000e+18 to get back to milliwatts.
Frequently asked questions
What is Milliwatt (mW)?
A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
What is Petawatt (PW)?
A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work.
How do I convert milliwatts to petawatts?
Multiply the milliwatt value by 1.000000e-18 to get the equivalent in petawatts. For example, 5 mW × 1.000000e-18 = 5.000000e-18 PW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-18 is an exact, non-rounded value.
Can I convert petawatts back to milliwatts?
Yes. Divide the petawatt value by 1.000000e-18, or multiply it by 1.000000e+18, to get milliwatts.
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About converting milliwatts to petawatts
A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work. A Petawatt (PW) equals 1e+15 watt(s), a scaled unit of electrical power used for peta-scale electrical work.
Use this calculator to move between milliwatts and petawatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.