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Formula on How To Calculate Motor Hp
Needed to Deliver 14.59 lb-ft Torque at 1800 rpm

For new calculation click the clear button. Then enter new data. If infinity message shows up, ignore it. Continue entering your data. Do not enter the comma symbol , or the letter 'O' in the input box because NaN (Not a Number) error will be displayed.

Formula memory recall on how to solve required motor hp to meet the specified torque of 14.59 lb-ft at given motor speed of 1800 rpm.

Torque (lb-ft)
HP x 5252


To do scenario analysis, simply hover your cursor over torque or rpm input box then enter new number.

Memory recall knowledge you collected over the years of work experience:

RPM = revolution per minute ; 1 hp = 33,000 lb-ft per minute ; 1 revolution = 2π
2π = 6.2832 ; 33,000 /6.2832 = 5252

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