Multiply the number of kilowatts by .06 cents for an approximate cost of electricity. Within the case is a revolving disk which in turn rotates a series of numbers or dials. The disk rotates as electric current passes through the meter to measure the exact amount of kilowatts used. The speed varies depending on how much electricity you are using in your house. The more electricity you use, the faster the rotation.
Electricity is measured in kilowatt-hours.
Your average cost per kilowatt hour will probably be a little bit different, depending on the total number of kilowatt hours you use each month. The more electricity you use, the less you pay per kilowatt hour. For an example, you may figure that a 100 watt light bulb burning for 10 hours uses one kilowatt-hour. Your home heating and air conditioning equipment is the largest user of electricity in your home. The second largest user of electricity is most likely your water heater.