**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 mil [Sweden]

light hour to microinch

light hour to legoa

light hour to legua

light hour to dekametre

light hour to pearl

light hour to leap

light hour to spat

light hour to caliber