Monthly Billing Factor

The billing factor is a number or adjuster used to convert the amount of gas registered on the meter to therms for billing purposes. The billing factor adjusts the amount of gas used to reflect the heat value of the gas at a given altitude and assures customers in all areas are charged equally for the value of the gas used.

BTU District Map

You can find out the monthly billing factor for your area if you know your BTU District and Altitude Zone. If you need additional help you may contact SoCalGas at 1-800-427-2200.