Electricity Calculator for Android

Try it with one appliance

This is the sum the app does for every item on your list. Change anything underlined.

running hours a day, days a month, at per kWh.

Monthly use: 135.00kWh

Monthly cost: $20.25

4500 W × 1 h × 30 days ÷ 1000 = 135.00 kWh

A donut chart of 267.25 kWh split by appliance, with the electric water heater at 50.5 percent, followed by a table of kWh per month for each item.

Find the appliance that runs up the bill

The details screen splits your month into a chart and ranks every item by kWh. In this example an electric water heater used for one hour a day is half of the total, more than both TVs, the computer and the blender put together.

The Select an item screen with a search box and categories: TV, Lights, Fan, Air Conditioner, Kitchen, Home and Computer. The TV category is open showing four sizes with their watts.

Start from a list of common appliances

You don't need to know the wattage of your fridge. Pick from more than 40 appliances with typical watts already filled in, grouped by TV, lights, fans, air conditioning, kitchen, home and computer. Search if you'd rather not browse.

The Add Item form with fields for name, quantity, watts, days per month and daily usage time.

Enter how you actually use it

Each item takes a name, how many you have, its watts, the days per month you use it and the time it runs each day. If the label on your appliance says something different from the preset, type your own number.

Also in the app

Fixed or tiered rates: Enter one price per kWh, or set up the tiers your provider charges so the cost follows the way your bill is calculated.
Backup to a file: Export your items and rates to a file, in Google Drive for example, and import it again on another phone.

See what each appliance adds to your electricity bill

Try it with one appliance

Find the appliance that runs up the bill

Start from a list of common appliances

Enter how you actually use it

Also in the app

Know the number before the bill arrives