Watts to Amps Calculator
Convert electrical power in watts to current in amps at your supply voltage.
About the Watts to Amps Calculator
If you have ever wanted a fast, reliable Watts to Amps Calculator that works on your phone without sign-ups or ads getting in the way, this is it — the figures update the moment you type.
Energy comes in many units — joules, watt-hours, calories, BTU, and the kilowatt-hours on your electricity bill. This Watts to Amps Calculator converts between them so you can compare energy figures from different sources.
The conversion applies the exact factors between energy units, and because one kilowatt-hour equals 3.6 million joules, the calculator saves you from unwieldy manual math.
Pakistani households meet these units everywhere: electricity bills in kWh, gas bills in cubic metres or MMBTU, and appliance specs in watts. Converting between them is how you compare energy costs across fuel types.
The converter is the companion to this site's appliance and bill calculators — convert any figure to kWh and you can price it against your tariff.
For the most accurate outcome from the Watts to Amps Calculator, keep the editable rates and defaults up to date with current figures before reading the result.
How to convert energy units
- 1
Enter the energy value in the unit you have.
- 2
Select the unit to convert to.
- 3
Read the converted value, updated live.
Frequently Asked Questions
How do I convert watts to amps?
Divide watts by volts: 2,200 W at 220 V draws 10 A. This is how you size breakers, wires and sockets.
How many kWh are in a joule?
One kilowatt-hour equals 3.6 million joules. Conversely, 1 joule is 0.000000278 kWh — tiny, which is why bills are in kWh rather than joules.