Input Values (P = W/t)

Calculated Power

Calculated power will appear here

Power Calculator - P = W/t Calculator

Calculate power using work and time (P = W/t). Perfect for physics students and engineering calculations.

What is Power Calculator?

Power Calculator is a free online tool that calculates power using the formula P = W/t. It allows you to input work done and time taken in various units and calculates the resulting power. Perfect for physics students, engineers, and anyone working with energy and power systems.

How to Use Power Calculator

  1. Enter the work done in the work input field
  2. Select the appropriate work unit from the dropdown
  3. Enter the time taken in the time input field
  4. Select the appropriate time unit from the dropdown
  5. The power calculation happens automatically as you type
  6. Select your desired power unit from the output dropdown
  7. Copy the result using the copy button
  8. Use Clear to reset all values

Power Formula

P = W/t
Power = Work Done / Time Taken

Variables

  • P - Power (in Watts)
  • W - Work done (in Joules)
  • t - Time taken (in seconds)

Units

  • Power: W, kW, mW, hp, BTU/h
  • Work: J, kJ, cal, kcal, Wh, kWh
  • Time: s, min, h, ms, μs

Frequently Asked Questions

What is power in physics?

Power is the rate at which work is done or energy is transferred. It measures how quickly energy is used or transferred. The SI unit of power is the Watt (W), which equals one Joule per second.

How is power different from energy?

Energy is the capacity to do work, while power is the rate at which work is done. Energy is measured in Joules, while power is measured in Watts (Joules per second).

What units are supported?

The calculator supports multiple units for work (J, kJ, cal, kcal, Wh, kWh), time (s, min, h, ms, μs), and power (W, kW, mW, hp, BTU/h). All conversions are handled automatically.

Can I use this for electrical power calculations?

Yes, this calculator works for any type of power calculation where you know the work done and time taken. For electrical power, work would be electrical energy and time would be the duration.

Is my data secure?

Yes, all calculations happen locally in your browser. Your data never leaves your device.

Can I use this offline?

Yes, once loaded, the calculator works completely offline in your browser.