Cubic Feet to Gallons Converter (2024)

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Cubic feet and gallonsEquivalence between cubic feet and gallonsHow do I convert cubic feet to gallons?Other useful toolsFAQs

With our cubic feet to gallons converter, you can easily switch between both volume units. With this tool, you will be able to convert cubic feet to gallons just by typing the volume in cubic feet in the converter.

In this short text, you will learn:

  • How to convert cubic feet to gallons;
  • Cubic foot and gallon definitions; and
  • Difference between US and UK gallons.

Cubic feet and gallons

Cubic feet (ft³ or cu ft) and gallons (gal) are both imperial/US volume units. What is volume exactly? In simple words, volume is the space an object occupies. We use volume units to measure, for example, the amount of water in a pool, a car's trunk size, amount of liquid inside a bottle, and several other things.

A foot is a unit of length equal to 12 inches or 30.48 cm. A cubic foot is the amount of space enclosed by a box with a 1 ft length of its sides.

Similarly, a US gallon is defined as 231 cubic inches or 231 times the amount of space a box with 1-inch sides occupies.

On the other hand a UK gallon is defined as 4.54609 cubic decimeters.

🙋 Are you having trouble understanding all these different definitions and units? Check Omni's volume conversion tool! It has all the explanations and examples you need to comprehend the subject thoroughly.

Equivalence between cubic feet and gallons

Since both are volume units, we can switch between them using a conversion factor which is just a number to indicate the proportion between one unit and another. In the case of cubic feet and gallons:

1ft³=7.48052USgal1ft³=6.22884UKgal1\ \text{ft³} = 7.48052\ \text{US gal}\\1\ \text{ft³} = 6.22884\ \text{UK gal}1ft³=7.48052USgal1ft³=6.22884UKgal

We will need to multiply the volume by this number to convert from cubic feet to gallons or divide it by the same number to switch from gallons to cubic feet.

How do I convert cubic feet to gallons?

To convert cubic feet to gallons:

  1. Write down the volume expressed in cubic feet.
  2. Multiply this number by 7.48052 to convert to US gallons.
  3. Otherwise, multiply the volume in cubic feet by 6.22884 to convert to UK gallons.

Other useful tools

FAQs

How many gallons are 1.5 cubic feet?

1.5 cubic feet are 11.2208 US gallons or 9.34325 UK gallons. To convert 1.5 cubic feet to gallons, you need to multiply 1.5 by 7.48052 or 6.22884 if you want the result expressed in US or UK gallons respectively.

Is cubic foot a metric unit?

No, a cubic foot is not a metric unit. It is a US and Imperial system unit used to measure volume.

Cubic Feet to Gallons Converter (2024)

FAQs

Cubic Feet to Gallons Converter? ›

There are 7.48 gallons of water in one cubic foot of water. To convert gallons to cubic feet, divide the total gallons by 7.48. To convert cubic feet to gallons, multiply the cubic feet by 7.48.

What is the formula for cubic feet to gallons? ›

There are 7.48 gallons of water in one cubic foot of water. To convert gallons to cubic feet, divide the total gallons by 7.48. To convert cubic feet to gallons, multiply the cubic feet by 7.48.

How do you convert 1 CFS to gallons? ›

One cubic-foot per second (or 7.48 gallons per second) is also equal to 448.8 gallons per minute, 1 CFS = miner's feet.

How many gallons fit in a 1 foot cube? ›

One cubic foot equals 7.48 gallons.

How do you convert water to gallons? ›

Divide by 128 to convert fluid ounces to gallons.

There are 128 U.S. fluid ounces in one U.S. liquid gallon. So, if you know the volume of a liquid or a container in fluid ounces, simply divide the amount by 128 to convert to gallons. Example: The volume of a tank is 931 U.S. fluid ounces.

How many gallons is 100 CFS? ›

There are 7.48 gallons in 100 cubic feet.

What is the conversion factor for gallons? ›

The gallon used in the United States is equal to exactly 231 cubic inches or 3.785411784 liters. The Imperial gallon or UK gallon is equal to approximately 277.42 cubic inches.

How do you convert area to gallons? ›

Multiply H ft by 7.48052 to get gallons of water in one square foot: G = H ft × 7.48052 . Confirm your result using our gallons per square foot calculator.

How to calculate a water tank? ›

Let length be L, Breadth be B, and Height be H. So, if we take: L = 8ft B = 6 ft D/H = 5 ft Then the volume of the tank will be 8 x 6 x 5 = 240 ft³ We all know that 1ft³ is equivalent to 28.31 liter Therefore, the total volume of tank in liters will be 240 x 28.31 = 6794.4 liter.

How do you calculate gallons in a cube? ›

Divide the cubic volume in inches by 231 in order to find the number of gallons.

What is the formula for gallons to cubic feet? ›

To convert gallons to cubic feet: Write down the volume in gallons (US or UK). Multiply this number by 0.133681 if it's a US gallon. Otherwise, multiply the volume in gallons by 0.160544 if it's a UK gallon.

How many gallons of water can fit in a cubic foot? ›

A cubic foot of water is equal to 7.48 gallons of water. (100 cubic feet = 748 gallons).

How many gallons of water equal 1 cubic inch of rain? ›

One inch of rain is (in metric units) 2.54 milliliters of rain per square centimeter of land area, or 25.4 liters per square meter. In U.S. units, one inch of rain is one cubic inch of water, or . 004329 gallons, per square inch of area.

How many cubic feet is a 5 gallon bucket? ›

The average 5 gallon bucket contains between 1,155 and 1,387 cubic inches. How Many Cubic Feet Is a 5 Gallon Bucket? The average 5 gallon bucket contains between 0.66 and 0.8 cubic feet.

How do you find the cubic feet of water in a tank? ›

The volume of a tank in cubic feet is equal to the tank area multiplied by the tank height. The capacity in gallons is equal to the volume in cubic feet multiplied by 7.48 gallons per cubic foot.

How do you calculate the volume of water in cubic feet? ›

Length x width x average depth x 7.5 = volume (in gallons)

Multiplying that by the average depth gives the volume in cubic feet.

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