Engineering Specifications
and Resources
Horsepower / Torque Calculations
HP = Force x FPM / 33,000
HP = Torque (foot pounds) X RPM / 5,252
HP = Torque (in. pounds) X RPM / 63,025
One horsepower is equivalent to the amount of work required to lift 33,000 pounds one foot in one minute of time.
Torque (in inch pounds) = 63,025 X HP / RPM
Torque (in foot pound) = 5,252 X HP / RPM
The unit of torque is the foot pound and represents the turning force exerted on a rotatable shaft by a weight of one pound acting at a radius of one foot.
RPM = Revolutions per minute.
Force = Working load in pounds.
FPM = Feet per minute.
English / Metric Conversions
Length & Volume Conversion for Metric and English U.S. Units
Inches X 25.4001 = millimeters
Inches X .0254 = meters
Feet X .30480 = meters
Yards X .91440 = meters
Feet X .0003048 = kilometers
Statute miles X 1.60935 = kilometers
Nautical miles X 1.85325 = kilometers
Millimeters X .039370 = inches
Meters X 39.370 = inches
Meters X 3.2808 = feet
Meters X 1.09361 = yards
Kilometers X 3.2808 = feet
Kilometers X .62137 = statute miles
Kilometers X .53959 = nautical miles
Square inches X 645.163 = square millimeters
Square inches X 6.45163 = square centimeters
Square feet X .0929 = square meters
Square yards X .83613 = square meters
Acres X .40469 = hectares
Acres X .0040469 = square kilometers
Square miles X 2.5899 = square kilometers
Square millimeters X .00155 = square inches
Square centimeters X .155 = square inches
Square meters X 10.76387 = square feet
Square meters X 1.19599 = square yards
Hectares X 2.47104 = acres
Square kilometers X 247.104 = acres
Square kilometers X .3861 = square miles
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