Use this calculator to measure how quickly work is done in a physics context, with formula references for the wider power relationships.
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The strongest pages in the library pair the live calculator with a topic guide and, where it helps, a printable reference you can reuse offline.
Use this page when you know how much work was done and how long it took, and you want the mechanical power required.
The main result is power in watts, which tells you the rate of energy transfer rather than the total work done.
If 500 J of work is done in 25 s, the average power is 20 W.
This calculator uses work over time directly. In more advanced cases, power may vary throughout the motion or be better described from force and velocity.
Calculate work from force and distance when the force acts through the displacement in the direction of motion.
Calculate force from mass and acceleration using Newton's second law.
Use the Speed Calculator to solve speed from a standard physics relationship with explicit units.
Use the Time Calculator to solve time from a standard physics relationship with explicit units.