An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
Attowatts to Yottawatts
Convert Attowatt (aW) to Yottawatt (YW) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Electrical calculator
Electricity Converter
Convert attowatts (aW) to yottawatts (YW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Yottawatt (YW) equals 1e+24 watt(s), a scaled unit of electrical power used for yotta-scale electrical work.
YW = aW × 1.000000e-42
Results update instantly for Attowatts to Yottawatts conversions.
Reserved above the conversion cards and below the converter.
Formula
YW = aW × 1.000000e-42
aW = YW × 1.000000e+42
Conversion table
| 1 aW | 1.000000e-42 YW |
| 5 aW | 5.000000e-42 YW |
| 10 aW | 1.000000e-41 YW |
| 20 aW | 2.000000e-41 YW |
| 50 aW | 5.000000e-41 YW |
| 100 aW | 1.000000e-40 YW |
| 500 aW | 5.000000e-40 YW |
| 1000 aW | 1.000000e-39 YW |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both attowatt and yottawatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attowatts by 1.000000e-42 to get yottawatts. To reverse the conversion, multiply a yottawatt value by 1.000000e+42 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 Yottawatt (YW)?
A Yottawatt (YW) equals 1e+24 watt(s), a scaled unit of electrical power used for yotta-scale electrical work.
How do I convert attowatts to yottawatts?
Multiply the attowatt value by 1.000000e-42 to get the equivalent in yottawatts. For example, 5 aW × 1.000000e-42 = 5.000000e-42 YW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-42 is an exact, non-rounded value.
Can I convert yottawatts back to attowatts?
Yes. Divide the yottawatt value by 1.000000e-42, or multiply it by 1.000000e+42, to get attowatts.
Reserved between the FAQ and the article so the page stays balanced.
About converting attowatts to yottawatts
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work. A Yottawatt (YW) equals 1e+24 watt(s), a scaled unit of electrical power used for yotta-scale electrical work.
Use this calculator to move between attowatts and yottawatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.