# Energy Consumption Calculator

Energy consumption calculator. kWh calculator.

## Energy consumption calculation

The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) times number of usage hours per day t divided by 1000 watts per kilowatt:

*E*_{(kWh/day)} = *P*_{(W)} Ã— *t*_{(h/day)} / 1000_{(W/kW)}