💧 CCF to Gallons Conversion
Convert CCF, the hundred-cubic-feet unit used on many U.S. water and natural gas bills, to U.S. gallons and back.
What CCF means and how to convert it
CCF stands for "hundred cubic feet" (C is the Roman numeral for 100), and it is the standard billing unit many U.S. water and natural gas utilities use on invoices. One CCF equals 100 cubic feet of water or gas.
To convert CCF to gallons, this calculator uses the standard factor that 1 cubic foot equals 7.480519 U.S. gallons, so 1 CCF equals approximately 748.05 gallons. The conversion works in both directions, and the cubic feet equivalent is also shown for reference.
This tool is intended for general estimation and educational purposes; always refer to your actual utility bill and meter readings for billing accuracy.
Last reviewed August 2026