**Full name:** light hour

**Plural form:** light hours

**Alternate spelling:** lighthour

**Category type:** length

**Scale factor:** 1079252848800

The SI base unit for length is the metre.

1 metre is equal to 9.26566931106E-13 light hour.

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

You can use this form to select from known units:

I'm feeling lucky, show me some random units

A light-hour (also written light hour) is a unit of length. It is the distance travelled by light in vacuum in one hour. Based on the current definition of the metre a light-hour is equal to 1,079,252,848,800 metres (~1.08 Tm).

light hour to dong [Vietnam]

light hour to zoll [Germany]

light hour to wah [Thailand]

light hour to kilometre

light hour to pace [great]

light hour to mile [Scottish]

light hour to point [TeX]

light hour to picometre

light hour to megametre