Advanced Electrical Power Calculation Tool
Enter any two values to calculate power and other parameters
Basic Power Formula
P = V × I
Power with Resistance
P = I² × R
Power with Voltage & Resistance
P = V² ÷ R
Mechanical Power
P = W ÷ t
| Unit | Symbol | Equivalent | Common Usage |
|---|---|---|---|
| Watt | W | 1 J/s | Small electronics, light bulbs |
| Kilowatt | kW | 1,000 W | Household appliances, small motors |
| Megawatt | MW | 1,000,000 W | Power plants, large industrial |
| Horsepower | hp | 745.7 W | Automotive, machinery |
Power is the rate at which electrical energy is transferred by an electric circuit per unit time.