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Use this calculator to work out the Power, RPM or Torque required given the other two selected values.
Here are a couple of lame formulae to support the calculations: where P is power (watt or kilowatt), τ is torque (Nm), ω is the angular velocity (radians per second), and dot represents the scalar product. The calculator accepts angular speed in RPM (rounds per minute) and the conversion to radians per second is a simple.
The Power to Torque Calculator is an invaluable tool for engineers, mechanics, and automotive enthusiasts who need to convert power (measured in watts or horsepower) into torque (measured in newton-meters or foot-pounds).
Calculating torque from RPM involves these key steps: Compute the engine’s power output in Watts at the given RPM. Apply the conversion formula: Torque (Nm) = Power (W) / (2 π RPM). Ensure consistent units (Nm for torque, W for power). Suppose an electric motor generates 10,000 W at 5,200 RPM. To calculate the torque:
Power is quantified in watts (J/s) or horse power. Note that the driving force of an electric motor is torque - not horsepower. The torque is the twisting force that makes the motor running and the torque is active from 0% to 100% operating speed.
The amazing electric motor torque calculator indicates the relationship between motor speed, power, and torque. Are you looking to determine how much torque you can get at a specific rotational speed?
The above power-torque calculator requires the following data for calculation: Power in HP or kW and choose the input unit. Enter the motor speed in RPM. (Mandatory) After entering the required data, click on the “Calculate” button.
The following formula can be used to calculate engine torque: torque = (horsepower × 5,252) ÷ rpm. In this formula, 5,252 is the RPM at which horsepower and torque cross over on a graph showing the values at various RPM, assuming that the scales on both axes are identical.
Using the Power to Torque Calculator is straightforward and efficient: Total Power (kW): Enter the total power in kilowatts (kW) of the machine or engine. Total Rotational Speed (RPM): Input the rotational speed in revolutions per minute (RPM). Calculate: Click the “Calculate Torque” button to perform the calculation.
Calculation Formula. The formula to calculate torque from RPM (rotations per minute) and horsepower (HP) is: \ [ T = 5252.08 \times \frac {P} {S} \] where: \ (T\) is the Torque From RPM in pound-feet (lb-ft), \ (P\) is the total power in horsepower (HP), \ (S\) is the rotational speed in RPM.