Click save settings to reload page with unique web page address for bookmarking and sharing the current tool settings

Flip tool with current settings and calculate work (W) or elapsed time (t) instead

## Related Tools

## User Guide

Use this calculator to determine the power in watt, kilowatt or horsepower units, from the total energy transferred or work done for a given period of time.

### Formula

The formula used by this calculator to determine the power from the work done and time taken is:

P = W / t

#### Symbols

- P = Power output
- W = Work done or energy transferred
- t = Time duration

### Work (W)

This is the total energy transferred or work done.

### Time (t)

This is the total elapsed time.

### Power (P)

This is the rate at which energy is transferred.