Enter the torque in Newton-meters and the RPM into the calculator to determine the power in kilowatts. This calculator helps in converting rotational mechanical power measurements from RPM and torque to kilowatts.
RPM to kW Formula
The following formula is used to calculate the power in kilowatts (kW) from torque (Nm) and rotational speed (RPM).
P (kW) = (T (Nm) * RPM) / 9549.29677
Variables:
- P is the power in kilowatts (kW)
- T is the torque in Newton-meters (Nm)
- RPM is the rotational speed in revolutions per minute
To calculate power in kilowatts, multiply the torque in Newton-meters by the rotational speed in RPM, then divide by the constant 9549.29677.
What is Power in Kilowatts?
Power in kilowatts is a unit of power that measures the rate at which work is done or energy is transferred. In the context of rotational systems, it is a measure of how much energy is converted by the system in a given time. It is a crucial parameter for understanding the efficiency and capability of engines, motors, and other rotational devices.
How to Calculate Power from RPM and Torque?
The following steps outline how to calculate the power in kilowatts from RPM and torque.
- First, determine the torque (T) in Newton-meters.
- Next, determine the rotational speed (RPM).
- Use the formula P (kW) = (T (Nm) * RPM) / 9549.29677 to calculate the power.
- Finally, calculate the power (P) in kilowatts.
- 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.
Torque (T) = 500 Newton-meters
RPM = 1500 revolutions per minute
