Conversion Factors

Overview

The following table shows the conversion factors for many of the units used in Engineering

To Convert Multiply by ReciprocalRadian to degrees 57.30 0.01745Inches to metres 0.0254 39.37Yards to metres 0.9144 1.094Miles/hour to metres/second 0.447 2.237Pounds to kilograms 0.4536 2.205Pounds (force) to newtons 4.45 0.225Kilograms (force) to newtons 9.81 0.1019Newton-metres to lb ft 0.738 1.355Newton-metres to g.cm 1.019x10⁴ 9.81x10^-5Horsepower to ft.lb/min 33,000 3.031x10^-5Horsepower to kilowatts 0.746 1.341Therms to Btu 100,000 10^-5Btu to kilogram-calories 0.252 3.97Btu to kWh 2.934x10^-4 3409Ft.lb to Btu to joules 1.356 0.7374Kilogram-calories to joules 4187 2.388x10^-4Joules to kWh 0.2778z10^-6 3,600,000

You can also use this online Conversion Calculator