How many light hour in 1 light-year? The answer is 8766. We assume you are converting between light hour and light year. You can view more details on each measurement unit: light hour or light-year The SI base unit for length is the metre. 1 metre is equal to 9.2656693110598E-13 light hour, or 1.0570008340246E-16 light-year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light hours and light years. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from light-year to light hour, or enter any two units below:
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).
A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 × 1012 kilometres (9.46 petametres, or about 5.88 × 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).
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