# ››Measurement unit: zettavolt

Full name: zettavolt

Plural form: zettavolts

Symbol: ZV

Category type: voltage

Scale factor: 1.0E+21

# ››SI unit: volt

The SI derived unit for voltage is the volt.
1 volt is equal to 1.0E-21 zettavolt.

# ››Convert zettavolt to another unit

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# ››Definition: Zettavolt

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

So 1 zettavolt = 1021 volts.

The definition of a volt is as follows:

The volt (symbol: V) is the SI derived unit of electric potential difference or electromotive force, commonly known as voltage. It is named in honor of the Lombard physicist Alessandro Volta (1745–1827), who invented the voltaic pile, the first chemical battery.

The volt is defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power.[3] Hence, it is the base SI representation m2 · kg · s-3 · A-1, which can be equally represented as one joule of energy per coulomb of charge, J/C.