Mechanical engineering and physics · Rotational mechanics

Rotational power from torque and speed

Calculate ideal instantaneous power from torque magnitude and angular-speed magnitude.

Published · R0

Method and scope

P = τω.

Use rotational power from torque and speed for educational calculation or a clearly scoped arithmetic estimate. Intended for Learners, General educational use.

Inputs
  • Torque magnitude — N·m
  • Angular speed — rad/s, rpm
SOURCE AND LIMITS

Assumptions: Torque and angular speed refer to the same shaft and instant. Power is calculated from magnitudes.

Limitations: Actual output power can differ due to changing torque, speed, and losses.

Method version 1.0.0 · Unit registry and result provenance are shown after calculation. This tool is limited to the documented scope.
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