A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work.
Gigawatts to Attowatts
Convert Gigawatt (GW) to Attowatt (aW) instantly with an exact formula, conversion table, and FAQ.
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Convert gigawatts (GW) to attowatts (aW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
aW = GW × 1.000000e+27
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Formula
aW = GW × 1.000000e+27
GW = aW × 1.000000e-27
Conversion table
| 1 GW | 1.000000e+27 aW |
| 5 GW | 5.000000e+27 aW |
| 10 GW | 1.000000e+28 aW |
| 20 GW | 2.000000e+28 aW |
| 50 GW | 5.000000e+28 aW |
| 100 GW | 1.000000e+29 aW |
| 500 GW | 5.000000e+29 aW |
| 1000 GW | 1.000000e+30 aW |
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How the formula works
Both gigawatt and attowatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in gigawatts by 1.000000e+27 to get attowatts. To reverse the conversion, multiply a attowatt value by 1.000000e-27 to get back to gigawatts.
Frequently asked questions
What is Gigawatt (GW)?
A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work.
What is Attowatt (aW)?
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
How do I convert gigawatts to attowatts?
Multiply the gigawatt value by 1.000000e+27 to get the equivalent in attowatts. For example, 5 GW × 1.000000e+27 = 5.000000e+27 aW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+27 is an exact, non-rounded value.
Can I convert attowatts back to gigawatts?
Yes. Divide the attowatt value by 1.000000e+27, or multiply it by 1.000000e-27, to get gigawatts.
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About converting gigawatts to attowatts
A Gigawatt (GW) equals 1e+9 watt(s), a scaled unit of electrical power used for giga-scale electrical work. An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
Use this calculator to move between gigawatts and attowatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.