**Full name:** ampere-hour

**Plural form:** ampere-hours

**Symbol:** A-h

**Alternate spelling:** amp hr

**Category type:** electric charge

**Scale factor:** 3600

The SI derived unit for electric charge is the coulomb.

1 coulomb is equal to 0.00027777777777778 ampere-hours.

Valid units must be of the **electric charge** type.

You can use this form to select from known units:

ampere-hours to millicoulomb

ampere-hours to ampere-second

ampere-hours to statcoulomb

ampere-hours to Faraday constant

ampere-hours to microcoulomb

ampere-hours to ampere-minute

ampere-hours to coulomb

ampere-hours to ampere-hour

ampere-hours to franklin

ampere-hours to coulomb [international]