CCF to Gallons Converter (Water Bill Calculator)

What is a CCF to gallons converter?

A CCF to gallons converter changes a water volume measured in CCF, or hundred cubic feet, into gallons. CCF is one of the most common billing units for United States water and natural gas utilities, so converting to gallons makes it easier to understand actual usage.

What does CCF mean?

CCF stands for "hundred cubic feet." The "C" comes from centum, the Latin word for hundred. One CCF equals 100 cubic feet of water. It is the same unit as HCF, which some utilities use instead. Both mean exactly the same volume.

CCF to gallons formula

One cubic foot holds 7.48052 US gallons, the ratio of the NIST conversion factors for the cubic foot (0.02831685 m³) and the US gallon (0.003785412 m³). Since one CCF is 100 cubic feet, one CCF holds 100 times that amount:

1 CCF = 748.052 gallons

To convert CCF to gallons, multiply the CCF value by 748.052:

Gallons = CCF × 748.052

To convert gallons back to CCF, divide by the same number:

CCF = Gallons ÷ 748.052

One gallon equals about 0.00133681 CCF.

The converter shows results to three decimal places, or six decimal places when the result is below 0.01. For example, 1 gallon displays as 0.001337 CCF. Negative entries convert to zero.

Example calculation

A water bill shows usage of 8 CCF. To find the amount in gallons:

8 × 748.052 = 5,984.416 gallons

So 8 CCF of water use equals 5,984.416 gallons.

For a reverse example, a 15,000-gallon pool holds:

15,000 ÷ 748.052 ≈ 20.052 CCF

Common CCF to gallons conversions

Why water bills use CCF instead of gallons

A typical household uses thousands of gallons of water each month. Writing that number in gallons makes bills harder to read. CCF turns a large gallon count into a smaller, simpler number. A bill that reads "10 CCF" represents 7,480.52 gallons, but the smaller unit is easier to print and compare month to month.

How to read a water meter in CCF

Many residential water meters display a running total in cubic feet or CCF rather than gallons. To estimate gallons used between two readings:

1. Subtract the earlier meter reading from the later one to get cubic feet or CCF used.
2. If the result is in cubic feet, divide by 100 to convert to CCF.
3. Multiply the CCF figure by 748.052 to get gallons.

Frequently asked questions

How many gallons are in one CCF?

One CCF equals 748.052 gallons.

Is CCF the same as HCF?

Yes. Both CCF and HCF stand for "hundred cubic feet" and represent the same volume of water.

How do I convert my water bill from CCF to gallons?

Multiply the number of CCF shown on the bill by 748.052. For example, 6 CCF equals 6 × 748.052, or 4,488.312 gallons.

Why does CCF use the letter C for 100?

The "C" comes from centum, the Latin word for hundred. The EPA describes CCF as the most common unit used by water and natural gas utilities.

How many gallons are in one cubic foot?

One cubic foot equals 7.48052 gallons. Since one CCF is 100 cubic feet, multiplying 7.48052 by 100 gives the CCF-to-gallon factor of 748.052.

Can this converter handle decimal CCF values?

Yes. Any non-negative CCF or gallon value, including decimals, converts using the same formula. Negative values return zero.

References

1. US Environmental Protection Agency, WaterSense. Understanding Your Water Bill. epa.gov — CCF and HCF definition, the Latin centum origin, and its use as a common utility billing unit.
2. National Institute of Standards and Technology. NIST Guide to the SI, Appendix B.9: Factors for units listed by kind of quantity. nist.gov — cubic foot and US gallon conversion factors behind 7.48052 gallons per cubic foot.