Formula
For DC or single-phase resistive loads, P = V × I.
ELECTRICAL CALCULATORS
Watts, Amps & Volts Calculator
Solve electrical power from any two known values.
HOW IT WORKS
How to use the Watts, Amps & Volts Calculator
- Enter the requested values and select the appropriate units or options.
- Review the live result and breakdown.
- Copy or export the result for your notes, then verify consequential decisions.
Worked example
At 120 V, a 1,500 W load draws 12.5 A.
Practical guidance
Measure carefully, keep units consistent and treat rounded quantities as planning estimates. Supplier specifications and professional requirements take priority.
Frequently asked questions
Is the Watts, Amps & Volts Calculator free?
Yes. It runs in your browser without signup or a paid result screen.
Does Labureka store my input?
No tool input is sent to Labureka by the calculator code. Avoid entering sensitive information on shared devices.
How accurate is the result?
The calculation follows this documented method: For DC or single-phase resistive loads, P = V × I. Accuracy still depends on the inputs and assumptions.
Can I copy or export the result?
Yes. Use the copy and CSV buttons beside the result. QR tools also provide image downloads.