**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.

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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 attometre

light hour to dra [Russia]

light hour to lap [olympic pool]

light hour to dekametre

light hour to foot [iraq]

light hour to metric mile [high school]

light hour to mil [Sweden]

light hour to chain [Ramsden, engineer]

light hour to link [Gunter, survey]