## Measurement unit: petahenry

**Full name:** petahenry

**Plural form:** petahenries

**Symbol:** PH

**Alternate spelling:** petahenrys

**Category type:** inductance

**Scale factor:** 1.0E+15

## SI unit: henry

The SI derived unit for inductance is the henry.

1 henry is equal to 1.0E-15 petahenry.

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

You can use this form to select from known units:

## Definition: Petahenry

The SI prefix "peta" represents a factor of
10^{15}, or in exponential notation, 1E15.

So 1 petahenry = 10^{15} 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.

## Sample conversions: petahenry