Power of a 240 V, 10 A Appliance
A 240 V appliance drawing 10 A consumes 2400 watts (2.4 kW) of power.
How to use this tool
- Enter voltage (v), current (i) and resistance (r) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your power and the full breakdown beneath it.
Calculate the power consumption of a 240 V / 10 A appliance such as an electric dryer or water heater element.
Frequently asked questions
- What is the difference between this and a basic Ohm's Law calculator?
- This tool also shows power in both watts and milliwatts and lets you solve for V, I or R directly. The 'power wheel' name refers to the circular diagram in textbooks showing all 12 formula variants.
- Why do I enter 0 for the unknown?
- Entering 0 signals that the value is unknown. The calculator then derives it from the other two entered values.