Energy cost calculator


Electrical energy cost calculator and how to calculate.

Select country:  
Typical appliance:  
Power consumption:    
Hours of use per day:  h/day
Energy consumed per day:  kWh/day
1 kilowatt-hour (kWh) cost:    
Energy cost per day:  
Energy cost per month:  
Energy cost per year:  


Energy cost calculation

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) × t(h/day) / 1000(W/kW)


Energy cost calculation

The energy cost per day in dollars is equal to the energy consumption E in kWh per day times the energy cost of 1 kWh in cents/kWh divided by 100 cents per dollar:

Cost($/day) = E(kWh/day) × Cost(cent/kWh) / 100(cent/$)


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