Length is any quantity with dimension distance. In the International System of Units (SI), the basic unit of length is the meter (m). This Length converter allows you to convert a.u. of length (a.u., b), angstrom (A), arpent, astronomical unit (AU, UA), attometer (am), barleycorn, Bohr radius (b, a.u.), caliber (cl), centiinch (cin), centimeter (cm), chain (ch), chain (US survey) (ch), cubit (UK), decimeter (dm), dekameter (dam), Earth's distance from sun, Earth's equatorial radius, Earth's polar radius, Electron radius (classical), ell, exameter (Em), fathom (fath), fathom (US survey) (fath) among other units related to Length.