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`LH = f( km )`

Enter a value for all fields

The **Kilometers to Light-Hour **calculator converts a measurement of length in kilometers to light-hours.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**km**) This is the distance in kilometers

**Light-Minutes (LH)**: The calculator returns the distance in light-hours. However, this can be automatically converted to other units via the pull-down menu.

A light-hour is the distance traveled at the speed of light in one hour (60 minutes).