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Mechanical Power Calculator

Find average power from work transferred during a positive time interval. The result is watts when inputs are joules and seconds.

Enter your values

J
s

Use a decimal point, without thousands separators.

Example result
Power
100 W

The initial result uses the example values. Enter your own values and calculate again.

Edit inputs

How it works

Find average power from work transferred during a positive time interval. The result is watts when inputs are joules and seconds.

P = W/t

Worked example

Show example inputs and result

Work: 1,000 · Duration: 10.

Power
100 W

Questions and answers

Why are some results rounded?

Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.

Are my inputs sent to a server?

The calculator processes inputs in your browser. Its code does not send your values to a server.

Method reviewed: October 8, 2026 · Methods & accuracy

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