Online Calculators & Tools





Electricity Bill Calculator or conversion

Electricity bill cost calculator. Electricity usage consumption calculator.



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



Electricity bill calculation with formulas and chart of converting electricity bill

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)

Electricity cost calculation

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