An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
Attowatts to Zeptowatts
Convert Attowatt (aW) to Zeptowatt (zW) instantly with an exact formula, conversion table, and FAQ.
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Convert attowatts (aW) to zeptowatts (zW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Zeptowatt (zW) equals 1e-21 watt(s), a scaled unit of electrical power used for zepto-scale electrical work.
zW = aW × 1000
Results update instantly for Attowatts to Zeptowatts conversions.
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Formula
zW = aW × 1000
aW = zW × 0.001
Conversion table
| 1 aW | 1000 zW |
| 5 aW | 5000 zW |
| 10 aW | 10000 zW |
| 20 aW | 20000 zW |
| 50 aW | 50000 zW |
| 100 aW | 100000 zW |
| 500 aW | 500000 zW |
| 1000 aW | 1.000000e+06 zW |
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How the formula works
Both attowatt and zeptowatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attowatts by 1000 to get zeptowatts. To reverse the conversion, multiply a zeptowatt value by 0.001 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 Zeptowatt (zW)?
A Zeptowatt (zW) equals 1e-21 watt(s), a scaled unit of electrical power used for zepto-scale electrical work.
How do I convert attowatts to zeptowatts?
Multiply the attowatt value by 1000 to get the equivalent in zeptowatts. For example, 5 aW × 1000 = 5000 zW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1000 is an exact, non-rounded value.
Can I convert zeptowatts back to attowatts?
Yes. Divide the zeptowatt value by 1000, or multiply it by 0.001, to get attowatts.
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About converting attowatts to zeptowatts
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work. A Zeptowatt (zW) equals 1e-21 watt(s), a scaled unit of electrical power used for zepto-scale electrical work.
Use this calculator to move between attowatts and zeptowatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.