How to Use the Electricity Cost & Power Consumption Calculator
This calculator is designed to provide immediate answers without manual arithmetic or confusing steps. Simply input your values into the fields above; results update automatically as you adjust numbers. You can also customize your currency and tax preferences using the region selector in the header.
Formula & Calculation Method
Daily kWh = (Watts × Hours per Day) ÷ 1000; Monthly Cost = Daily kWh × 30 × Rate per kWh
Our algorithms strictly follow standard international accounting, scientific, and engineering formulas to ensure 100% precision.
Frequently Asked Questions
How can I find the wattage of an appliance?
Check the UL/CE electrical specification label on the back or bottom of the appliance, or in the user manual.
Which home appliances use the most electricity?
Central heating and air conditioning, water heaters, clothes dryers, electric ovens, and older refrigerators consume the most power.