Enter the power in kilowatts and the RPM into the calculator to determine the torque in Newton-meters. This calculator helps in converting electrical or mechanical power into torque.
KW to NM Formula
The following formula is used to convert kilowatts (KW) to Newton-meters (NM).
T = frac{P times 1000}{2 pi times frac{RPM}{60}}Variables:
- T is the torque in Newton-meters (Nm)
- P is the power in kilowatts (kW)
- RPM is the rotational speed in revolutions per minute
To convert KW to NM, multiply the power in kilowatts by 1000, then divide by the product of 2 times pi and the RPM divided by 60.
What is Torque?
Torque is a measure of the force that can cause an object to rotate about an axis. It is a vector quantity, meaning it has both magnitude and direction. Torque is commonly measured in Newton-meters (Nm) in the metric system. In the context of engines and motors, torque measures the rotational force produced by the engine’s crankshaft or motor’s rotor.
How to Calculate Torque from KW?
The following steps outline how to calculate the torque from power in kilowatts.
- First, determine the power (P) in kilowatts.
- Next, determine the RPM (rotational speed in revolutions per minute).
- Use the formula T = (P * 1000) / (2 * π * RPM / 60).
- Finally, calculate the torque (T) in Newton-meters.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Power (P) = 75 kilowatts
RPM = 1500 revolutions per minute