Go the distance with easy unit conversions. Whether you're measuring in miles or meters, kilometers or yards, our tool helps you cross the finish line without breaking stride.
A light year (ly) is a unit of length used in astronomy, representing the distance that light travels in one year through a vacuum, approximately 9.461 trillion kilometers (about 5.879 trillion miles).
The inch is a unit of length primarily used in the imperial and US customary systems. It is equal to 1/12 of a foot or exactly 2.54 centimeters.