yoctowatt
zettawatt

# ››More information from the unit converter

How many yoctowatt in 1 zettawatt? The answer is 1.0E+45.
We assume you are converting between yoctowatt and zettawatt.
You can view more details on each measurement unit:
yoctowatt or zettawatt
The SI derived unit for power is the watt.
1 watt is equal to 1.0E+24 yoctowatt, or 1.0E-21 zettawatt.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between yoctowatts and zettawatts.
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# ››Definition: Yoctowatt

The SI prefix "yocto" represents a factor of 10-24, or in exponential notation, 1E-24.

So 1 yoctowatt = 10-24 watts.

The definition of a watt is as follows:

The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A).

# ››Definition: Zettawatt

The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.

So 1 zettawatt = 1021 watts.

The definition of a watt is as follows:

The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A).

# ››Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!

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