Conversion factors

Conversion factors are ratios used to change a measurement from one unit to another without altering the actual quantity. They are equalities expressed as fractions, where the numerator and denominator represent the same amount in different units. For example, 1 inch = 2.54 centimeters; thus, the conversion factor is 2.54 centimeters / 1 inch. By multiplying a measurement by this factor, you convert it to the desired unit. Conversion factors help ensure accuracy and consistency when working with different measurement systems or units.