Physics
Electrical Power (P = VI)
Power from voltage and current.
Formula
Formula
P = V · I
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| V | voltage (V) | real number (ℝ) | V | input |
| I | current (A) | real number (ℝ) | A | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenvoltage (V) = 230, current (A) = 10
Result2300
Example 2
Givenvoltage (V) = 12, current (A) = 2
Result24