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 power output (P) instead

## Related Tools

## User Guide

Use this calculator to determine the elapsed time in millisecond, second, minute, hour, day or week units, from the total energy transferred or work done and the power output.

### Formula

The formula used by this calculator to determine the time taken to do work with at a specified power output is:

t = W / P

#### Symbols

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

### Energy (E)

This is the total energy transferred or work done.

### Power (P)

This is the rate at which energy is transferred.

### Time (t)

This is the total elapsed time.