# Online Energy cost Calculator

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# Energy cost calculator

Electrical energy cost calculator and how to calculate.

The electricity cost calculator allows consumers to estimate their annual electricity cost in a straightforward way. After you pay your monthly bills for a while it's normal to ask: how much does electricity cost? By simply entering a few values in this electricity calculator will save yourself time and effort as well as getting a precise answer to the question. It will help you calculate, for example, the money you would save if you switched to LED bulbs. Or maybe, how much it costs to bake a cake? You might also want to check out our electricity cost - single usage calculator or meeting cost calculator.

## How does the electricity cost calculator work?

It's rather simple. If you know the value for power consumption, energy price and usage time, the calculator will automatically display how much power you consume per day and generate the exact annual price for electricity. You can also change the units at will (for example change days to months or watts to kilowatts).

#### 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_{($/day)} = *E*_{(kWh/day)} × Cost_{(cent/kWh)} / 100_{(cent/$)}