Power Cost Calculator

Power Cost Calculator

The power cost calculator below can be used to quickly and accurately calculate the electricity cost for any of your household appliances!

You’ll need to enter the power rating of the appliance in watts, your cost per kWh, and your usage time, the electricity cost calculator will do the rest!

0.00

(Usage - kWh)

£0.00

(Estimated Running Cost)

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This power cost calculator does not include the daily standing charge in the calculation.

How to use our Power Cost Calculator

monitor electricity calculator

This energy cost calculator was designed to be super simple! Just enter a few details into the calculator and you’ll get an instant electricity cost estimation.

Power Consumption (Watts)  – First, you’ll need to enter the power consumption figure for your appliance, in watts. The wattage for most household appliances can be found on the device itself, usually on a sticker somewhere at the back, or in its user manual.

kWh Cost (Pence)  – Secondly, you’ll need to know how much your energy provider is charging you per kWh. You can find this figure on your electric bill, or you can contact your provider and ask them for it. The average at the moment is 29p, so if yours is 29p, just enter 29, not 0.29.

Usage Time (Minutes)  – Next, you’ll need to enter the usage time for the appliance, in minutes. For example, if you’re using a tumble dryer for 1.5 hours, you’ll need to enter 90 minutes into the power cost calculator.

Number of Days (Optional)  – Lastly, you’ll need to enter the number of days you’re using the appliance. For example, if you’re trying to find out a one-off running cost of an air fryer, just leave it at 1.

Understanding Electricity Consumption

Electricity consumption calculation

Electricity consumption refers to the amount of electrical energy that is being used over time. It is measured in kilowatt-hours (kWh), which is the amount of energy used by a 1000-watt device in one hour. This unit of measurement is used to calculate electricity bills and track energy usage.

Calculating Electricity Consumption

To calculate electricity consumption, you will need two pieces of information: the power rating of the appliance and the amount of time it has been used.

The power rating is measured in watts (W) and can usually be found on the appliance or in the product manual.

The formula for calculating electricity consumption is:

  • Electricity Consumption (kWh) = Power Rating (W) x Time Used (h) / 1000`
  • For example, if a 100-watt lightbulb is left on for 5 hours, the electricity consumption would be: 100 W x 5 h / 1000 = 0.5 kWh

Electricity Cost Calculators

Washing Machine

Calculate the cost of electricity for running a washing machine per cycle, per month, and yearly!

Tumble Dryer

Calculate the cost of electricity for running a tumble dryer per cycle, per month, and yearly!

Oven

Use this calculator to calculate the electricity running cost for an oven in the UK!

Kettle

Use this calculator to calculate the electricity running cost for an electric kettle!

Induction Hob

Use this calculator to calculate the electricity running cost for an induction hob!

Hair Dryer

Use this calculator to calculate the electricity running cost for a hair dryer!