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.
The kilometer is a unit of length equal to 1000 meters. It's commonly used for longer distances such as between cities or countries.
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).