Unit Utilities

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.


About inch (in)

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.

About Astronomical unit (au)

An astronomical unit (AU) is a unit of length used in astronomy, representing the average distance between the Earth and the Sun, approximately 149.6 million kilometers (about 93 million miles).


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