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 mile is a unit of length commonly used in the imperial and US customary systems. It is equal to 5280 feet or approximately 1.609 kilometers.