Physics
Electric Power Calculator
Power from voltage and current: P = V I.
Free to use — no sign-up or login.
Power (W)
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
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This free Electric Power Calculator covers Power from voltage and current: P = V I.
Electrical power is voltage times current. Related physics tools sit beside How it works, with no account required.
Using the Electric Power Calculator
Power from voltage and current: P = V I. Typical inputs are Voltage (V) and Current (A). How it works beside the form states the identity the Electric Power Calculator applies.
FAQ
How do I use the Electric Power Calculator?
Open the Electric Power Calculator, fill Voltage (V) and Current (A), and read the result. Enter Voltage (V) and Current (A) for the Electric Power Calculator; use finite values in the indicated domain. The calculator reports Power (W): Electrical power is voltage times current. Voltage and Current must describe the same operating point; AC circuits may also require power factor.
What formula does the Electric Power Calculator use?
The Electric Power Calculator uses the identity in How it works. In words: Enter Voltage (V) and Current (A) for the Electric Power Calculator; use finite values in the indicated domain. The calculator reports Power (W): Electrical power is voltage times current. Voltage and Current must describe the same operating point; AC circuits may also require power factor.