Get Units & Conversions Fact Sheet

The known quantity which is used in measurement is called a unit. For example: when you say I traveled 50 meters, the measurement of distance is being expressed in numbers i.e., 50 and unit is meter. 5 kg of vegetables, here kg (kilogram ) is the unit.

The units of measuring length are millimeter (mm), centimeter (cm), meter (m) and kilometer (km). The units of measuring weight are kilogram (kg) and gram (g). The units of measuring volume are milliliter (ml) and liter (L).

The two types of units are base units and derived units.

The seven SI base units, which are comprised of: Length - meter (m) Time - second (s) Amount of substance - mole (mole) Electric current - ampere (A) Temperature - kelvin (K) Luminous intensity - candela (cd) Mass - kilogram (kg)

The three fundamental units are: Mass: Mass is the measure of the amount of matter in a body. The fundamental unit of mass is Kilogram . Time: Time is a measurable period. The basic fundamental unit of time is second . Length: The length of an object is the distance between the two ends of an object.

A unit is any standard used for making comparisons in measurements. Unit conversions allow for measurements of a property that have been recorded using different units—for instance, centimeters to inches.

: a single quantity regarded as a whole in calculation. : a definite quantity (as of length, time, or value) used as a standard of measurement.

SI units Second (s) is used as a unit to denote the measurement of time. Metre (m) is the unit to denote the measurement of length . For measuring mass, kilogram (kg) is used as a unit . Electric current is measured by the unit of ampere. For measuring the temperature kelvin (k) is used as a unit.