Watts to Volts Calculator
Convert power and current into voltage.
About the Watts to Volts Calculator
Whether you are comparing options or just need a quick check, the Watts to Volts Calculator delivers an accurate result instantly, with every input editable so you can model your own scenario.
Energy comes in many units — joules, watt-hours, calories, BTU, and the kilowatt-hours on your electricity bill. This Watts to Volts 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.
Use the Watts to Volts Calculator as often as you like — it is free, needs no account, and pairs well with the other calculators in this category for a fuller picture.
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 volts?
Volts = watts ÷ amps. 1,100 W at 5 A implies 220 V.
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.