Energy Consumption Calculator
Calculate the daily energy consumption (kWh) of any appliance.
Calculate
Enter your values below.
Result
Daily energy consumption
0
Formula used
Energy (kWh) = (Watts × Hours) ÷ 1000
Example: 150 W appliance used 6 hours/day → 0.9 kWh/day.
How to use this calculator
- Enter Appliance power (watts), Hours used per day.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
How can I use this for my whole household?
Calculate each appliance separately, then add up all the daily kWh figures for a household total.
Where do I find an appliance's wattage?
Check the device's label, manual, or specifications page.
How does this relate to my electricity bill?
Multiply the daily kWh by your per-kWh electricity rate to estimate the daily cost — see the kWh Cost Calculator.
Does standby power count?
This only reflects active use hours — many devices also draw small amounts of standby power when 'off'.