An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
Attowatts to Milliwatts
Convert Attowatt (aW) to Milliwatt (mW) instantly with an exact formula, conversion table, and FAQ.
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Convert attowatts (aW) to milliwatts (mW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
mW = aW × 1.000000e-15
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Formula
mW = aW × 1.000000e-15
aW = mW × 1.000000e+15
Conversion table
| 1 aW | 1.000000e-15 mW |
| 5 aW | 5.000000e-15 mW |
| 10 aW | 1.000000e-14 mW |
| 20 aW | 2.000000e-14 mW |
| 50 aW | 5.000000e-14 mW |
| 100 aW | 1.000000e-13 mW |
| 500 aW | 5.000000e-13 mW |
| 1000 aW | 1.000000e-12 mW |
Related conversions
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How the formula works
Both attowatt and milliwatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attowatts by 1.000000e-15 to get milliwatts. To reverse the conversion, multiply a milliwatt value by 1.000000e+15 to get back to attowatts.
Frequently asked questions
What is Attowatt (aW)?
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
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.
How do I convert attowatts to milliwatts?
Multiply the attowatt value by 1.000000e-15 to get the equivalent in milliwatts. For example, 5 aW × 1.000000e-15 = 5.000000e-15 mW.
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 milliwatts back to attowatts?
Yes. Divide the milliwatt value by 1.000000e-15, or multiply it by 1.000000e+15, to get attowatts.
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About converting attowatts to milliwatts
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work. A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
Use this calculator to move between attowatts and milliwatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.