Answer
Meter ( m ) is the SI base unit for measuring length
Explanation
Second is for time, kg is for mass and m ^ 3 is for volume. The SI unit is the international system of units. It describes seven basic units as a standard measure for other physical quantities which can be derived by the basic physical quantities. Following are the SI units as: the meter for measurement of length, the kilogram for mass, the second for time, the ampere for electric current, the Kelvin for temperature, the candela for luminous intensity, and the mole for the amount of substance.