Electricity Cost Calculator
What does a device cost to run? Watts, hours and your price give the kWh and the cost per day, month and year.
Estimate your electricity bill from the kWh you used, and see the real price you pay per kWh.
Enter the energy you used, your price per kWh and, if your tariff has them, the fixed fee and the tax. You get the total, the part of each, and the all-in price per kWh, which is the best number for comparing tariffs.
Enter your values to see the result.
Want this tracked for you? UtilityControl logs your meters and costs automatically.
300 kWh at 0.30 per kWh is 90.00. With a fixed fee of 12.00 and 19 % tax on top: (90 + 12) × 1.19 = 121.38, an all-in price of 0.405 per kWh.
Tiered or time-of-day tariffs, network charges that change during the year, discounts and deposits are not included. Your supplier's bill is the final amount.
Written and reviewed by QLines, Cologne · Last reviewed
Multiply the kWh you used by your price per kWh, add the fixed fee of the period, and add tax if your prices are net. This is the same calculation your supplier does for a simple tariff.
It is the total of the bill divided by the kWh, so it includes the fixed fee and tax. It is the best figure to compare tariffs, because a cheap energy price with a high fixed fee can cost more.
It varies a lot with the size of the household, heating and appliances. The best figure is your own: read the consumption on your last annual bill, or the difference of two meter readings.
On your bill, in the consumption section for the billing period. You can also read your meter at the start and end of a period and subtract the first reading from the second.
What does a device cost to run? Watts, hours and your price give the kWh and the cost per day, month and year.
Convert watts to amps or amps to watts for DC, single-phase and three-phase circuits.
See every free calculator in one place.
UtilityControl keeps your readings, usage and costs for every meter and location, and it starts free.