Length is the measure of dimenions of an object or a quantity with dimension distance. Different forms of length being, height:vertical extent, and width or breath, measure of length from side to side and many more are there. The unit of length is a base unit for most of the measurements, and other units are derived from it.
SI unit of length is meter. With Notation as lower case (m).
We have some handy length converters to perform length and distance conversions.