Power Calculator - Calculator See


Power Calculator

Calculate mechanical or electrical power across Watts, Kilowatts, and Horsepower from work performed and elapsed time.

Calculator Inputs

J
Energy transferred.
sec
Elapsed time.

Calculated Results

Calculated Power
500.00 Watts (0.67 HP)
Kilowatts (kW) 0.500 kW
Mechanical Horsepower (HP) 0.670 HP
BTU per Hour 1,706 BTU/hr
Values calculate live as you adjust inputs.

About Power Calculator

Measures the rate of performing work or transferring energy per unit time: Power = Work / Time.

What is Power Calculator?

Measures the rate of performing work or transferring energy per unit time: Power = Work / Time.

How to Use This Calculator

  1. Enter work in Joules.
  2. Enter time in seconds.
  3. Read power in Watts, kW, and Horsepower.

The Mathematical Formula & Variables

Power (Watts) = Work (Joules) / Time (seconds); HP = Watts / 745.7

Step-by-Step Worked Example

Scenario: 5,000 Joules of work accomplished in 10 seconds.

  1. Power = 5,000 / 10 = 500 Watts (0.50 kW).
  2. In HP: 500 / 745.7 = 0.67 HP.

Result: 500.00 W (0.67 HP)

Frequently Asked Questions

How many Watts equal 1 Horsepower?

1 Mechanical Horsepower equals approximately 745.7 Watts.