Electrical Power Calculator
Electrical power calculator
Compute electric power from voltage and current (P = V x I).
Result
24 W
Uses P = V x I.
Physics signal
Advanced options
Formula
P = V x I Symbol legend
| Symbol | Meaning | Unit | Copy |
|---|---|---|---|
P | Electrical power | W | |
V | Voltage | V | |
I | Current | A |
- Enter voltage in volts.
- Enter current in amperes.
- Multiply voltage by current to get watts.
Example
Worked example: 12 V and 2 A
- 1 Given V = 12
- 2 Given I = 2
- 3 P = V x I = 12 x 2 = 24
Electrical power is 24 W.
How
- Enter the voltage value in volts.
- Enter the current value in amperes.
- Read the live power result in watts.
Avoid
- Mixing milliamps and amps without conversion.
- Using AC RMS and peak values interchangeably.
- Assuming this basic relation includes power factor effects.
Checks
Best fit
Electrical Power Calculator is built for calculate electrical power from voltage and current using p = v x i with quick, unit-ready output. If Electrical Power Calculator does not match the input scope, compare the answer with a second method.
Input check
Check P before calculating: it means electrical power and is measured in W.
Sanity check
For Electrical Power Calculator, use the worked example as a quick benchmark: Electrical power is 24 W. If the electrical power calculator answer is far away, check whether an input, unit, or mode changed.
Before copying
Review this common issue first: mixing milliamps and amps without conversion.
FAQ
What unit is power reported in?
Power is reported in watts.
Can this handle decimal values?
Yes, both voltage and current accept decimal input.
Does this include efficiency losses?
No, this is the ideal direct product P = V x I.
Switch
Switch12
No match.