Energy Consumption Calculator

Energy consumption calculator. kWh calculator.

Typical appliance:
Power consumption:
Hours of use per day: h/day
Energy consumed per day: kWh/day
Energy consumed per month: kWh/month
Energy consumed per year: kWh/year

Vitality Intake calculation

The power E at Kilowatthours (kWh) daily Is Equivalent to this power in g (W) occasions amount of use hours daily t split by 1, 000 g Per-kilowatt:

Calculating Annual Electricity Consumption and Costs

Follow the following steps for choosing the yearly energy usage of the product, and the cost to control it.

  • (1)
    Estimate the range of hours per evening an appliance runs. You can find two methods to do so:
  • - Tough estimate
    In case you are aware about how far you employ an equipment every day, you are able to roughly estimate the number of hours that it operates out. As an instance, should you know you generally see about 4 hours of tv every single day, you can use this amount. In the event you know you run all of your house admirer 4 hrs each evening before finishing off it, you should use this quantity. To gauge the range of hours a icebox actually operates in its highest possible wattage, divide the complete time that the icebox is plugged by three. Refrigerators, even though turned"to" all the moment, really cycle on and off as required to keep temperatures.

    - Keep a log
    it might be functional that you preserve a utilization log for a number of appliances. By way of example, you could set the cooking period whenever you put on your microwave, work on your own computerand see your own tv, or leave a light in a place or even outdoors.

  • Find the wattage of the product. You can find three methods to find the wattage an appliance follows:
  • - Stamped around the appliance
    The wattage on the majority of appliances is usually stamped at the ground or rear of the blower, or on its nameplate. The wattage listed is the maximum power brought on by this appliance. Numerous appliances possess a range of configurations, therefore that the actual amount of energy a blower may have is contingent on the setting being used. By way of example, a radio set at elevated volume makes use of more power than one set at lesser quantity. A fan placed at a greater speed employs more electrical power than 1 set at a lowly rate.

    - Multiply the machine ampere utilization from the machine voltage usage If the wattage is not listed around the appliance, you may nonetheless gauge it by simply finding the electrical current draw (in amperes) and multiplying that by the voltage used by the device. Many appliances at the USA utilize 120 volts. Larger appliances, such as clothes dryers and electric cooktops, utilize 240 volts. The amperes may be scraped onto the system in place of their wattage, or listed within the owner's handbook or hanger sheet.

    - Use online resources to discover average wattages or the wattage of distinct products you are thinking of purchasing. The following links are great selections:

    The house energy-saver stipulates alist of home equipment for their projected wattage and their own annual energy use, together side different faculties (including annual electricity use, based on"average" utilization routines. Keep on employing the equations if you are looking for energy use based in your usage patterns).

    ENERGY STAR provides energy-use info on specific services and products which have made the ENERGY STAR. The information varies across services and products, however if you're considering purchasing a brand new, effective products, energy-star gives you the ability to choose and compare certain designs. In a few events, you can utilize the offered advice to do your estimates utilizing the equations . The data may also assist you to compare the existing home equipment with more efficient designs, so you understand potential savings from upgrading to a much.

  • Find the Everyday energy consumption Employing the following Method:
  • (Wattage × Hrs Utilized Daily ) ÷ 1000 = Daily Kilowatt-hour (kWh) intake

  • Find the Yearly energy consumption using the next formula:
  • Every Day kWh consumption × number of times used annually following annual energy intake

  • Get the Yearly price to run the appliance Utilizing the following Method:
  • Annual Electricity consumption × utility speed per kWh = annual price to run appliance


  • Following the measures over, get out the yearly expense to use with an electric pot.
  • Estimate of time utilised: The kettle is used repeatedly per day, for roughly 1 total hour.
  • Wattage: The wattage is determined by the label and is listed at 1500 W.
  • Daily electricity intake
  • (1,500 W × 1) ÷ 1000 = 1.5 kWh

  • Annual energy use: The pot is used nearly every evening of the season.
  • 1.5 kWh × 365 = 547.5 kWh

  • Annual cost: The utility speed is 1 1 cents per kWh.
  • 547.5 kWh × £ 0.11/ / kWh = £ 60.23/year

  • II. Observing steps over, get the yearly cost to operate a paper shredder.
  • Estimate of time used: The shredder is currently used for around a quarter
  • hour each day (0.25 hour).

  • Daily energy consumption:
  • 360 W × .25 ÷ 1000 = 0.09 kWh

  • Annual energy consumption: The shredder is utilized approximately once a week (52 days a yr ).
  • Annual expense to operate: The average usefulness speed is 11 cents a kWh.
  • 4.68 kWh × £ 0.11/kWh = $0.51/year