**Full name:** zeptohenry

**Plural form:** zeptohenries

**Symbol:** zH

**Alternate spelling:** zeptohenrys

**Category type:** inductance

**Scale factor:** 1.0E-21

The SI derived unit for inductance is the henry.

1 henry is equal to 1.0E+21 zeptohenry.

Valid units must be of the **inductance** type.

You can use this form to select from known units:

The SI prefix "zepto" represents a factor of
10^{-21}, or in exponential notation, 1E-21.

So 1 zeptohenry = 10^{-21} henries.

The definition of a henry is as follows:

The henry (symbol: H) is the SI unit of inductance. It is named after Joseph Henry (1797-1878), the American scientist who discovered electromagnetic induction independently of and at about the same time as Michael Faraday (1791-1867) in England.

zeptohenry to millihenry

zeptohenry to femtohenry

zeptohenry to attohenry

zeptohenry to exahenry

zeptohenry to henry

zeptohenry to gigahenry

zeptohenry to decahenry

zeptohenry to hectohenry

zeptohenry to nanohenry