Convert Cubic Feet (ft³) to US Gallons (gal)

1 ft³ = 7.481 gal

How many US Gallons in a Cubic Foot?Printable chart →

Converting cubic feet to US gallons is essential for various applications, from gardening to cooking. With the conversion factor of 1 ft³ = 7.48051 gal, you can easily determine the volume of liquids you are dealing with. Whether you're measuring a tank or buying paint, knowing how to convert these units accurately can save you time and resources.

Cubic Foot (ft³)

US Gallon (gal)

7.480511

≈ 7 31/64 gal

Conversion Formula

gal = ft³ × 7.48051

Reverse: ft³ = gal × 0.133681

Quick mental math: To simplify, remember that 1 cubic foot is roughly 7.5 gallons for quick mental calculations.

Conversion Examples

1 ft³ × 7.48051 =

7.481 gal

1 Cubic Feet = 7.481 US Gallons

5 ft³ × 7.48051 =

37.403 gal

5 Cubic Feet = 37.403 US Gallons

10 ft³ × 7.48051 =

74.805 gal

10 Cubic Feet = 74.805 US Gallons

25 ft³ × 7.48051 =

187.013 gal

25 Cubic Feet = 187.013 US Gallons

50 ft³ × 7.48051 =

374.026 gal

50 Cubic Feet = 374.026 US Gallons

100 ft³ × 7.48051 =

748.051 gal

100 Cubic Feet = 748.051 US Gallons

Cubic Foot to US Gallon Table

Quick convert your value:

ft³ =—gal

Start:Step:Rows:Precision:

Cubic Foot (ft³)	US Gallon (gal)	Fraction
1	7.4805	7 31/64
2	14.961	14 31/32
3	22.4415	22 7/16
4	29.922	29 59/64
5	37.4026	37 13/32
6	44.8831	44 57/64
7	52.3636	52 23/64
8	59.8441	59 27/32
9	67.3246	67 21/64
10	74.8051	74 13/16
11	82.2856	82 9/32
12	89.7661	89 49/64
13	97.2466	97 1/4
14	104.7271	104 47/64
15	112.2077	112 13/64
16	119.6882	119 11/16
17	127.1687	127 11/64
18	134.6492	134 21/32
19	142.1297	142 1/8
20	149.6102	149 39/64

Unit Definitions

What is a Cubic Foot (ft³)?

ImperialUnited States, United Kingdom

A cubic foot (ft³) is a unit of volume in the Imperial and US customary systems, representing the volume of a cube with sides of one foot.

History

The cubic foot has been used as a standard measurement since the late 19th century. It is derived from the foot, a unit that has roots in various ancient systems of measurement.

Current Use

Cubic feet are commonly used in construction, shipping, and storage to measure volume, especially for materials like concrete, gravel, and water.

Learn more about Cubic Foot

What is a US Gallon (gal)?

US CustomaryUnited States

A US gallon (gal) is a unit of volume equal to 128 US fluid ounces, primarily used in the United States for measuring liquids.

History

The gallon has its origins in the British Imperial system but has been adapted in the US to a slightly different volume. The US gallon was standardized in the 19th century.

Current Use

US gallons are widely used in cooking, automotive fluids, and beverages. It is a common unit for measuring liquids in everyday life.

Learn more about US Gallon

Frequently Asked Questions

How many gallons are in 10 cubic feet?

To convert 10 cubic feet to gallons, multiply by the conversion factor of 7.48051. So, 10 ft³ x 7.48051 gal/ft³ equals 74.8051 gallons. This is useful in many scenarios, such as when filling a large aquarium or calculating the volume of a storage tank. Knowing this helps ensure that you have enough water or liquid for your needs.

What if I have 5 cubic feet of liquid, how many gallons is that?

For 5 cubic feet, you would use the same conversion factor of 7.48051. Therefore, 5 ft³ x 7.48051 gal/ft³ results in approximately 37.40255 gallons. This is particularly relevant if you're measuring the amount of paint needed for a large project or determining how much liquid fertilizer to purchase for a garden.

Can you convert 20 cubic feet to gallons?

Yes! To find out how many gallons are in 20 cubic feet, multiply 20 by 7.48051. This gives you 149.0102 gallons. This conversion is essential for anyone working with large containers, such as those in construction or landscaping, where accurate liquid measurement is crucial.

If I have 1 gallon, how many cubic feet is that?

To convert 1 gallon to cubic feet, you use the reverse conversion factor of 0.133681 ft³ per gallon. So, 1 gal x 0.133681 ft³/gal results in approximately 0.133681 cubic feet. This conversion is useful for understanding the space certain liquids occupy, such as when calculating how much storage you need for beverages.

How do I convert 50 cubic feet to gallons?

To convert 50 cubic feet into gallons, multiply 50 by 7.48051, which equals 374.0255 gallons. This conversion can come in handy when planning for events, such as filling a large pool or determining how much water is needed for an outdoor gathering.

Popular Volume Conversions

Liter to GallonL → gal US Gallon to Litergal → L Liter to MilliliterL → mL US Cup to Millilitercup → mL US Fluid Ounce to Milliliterfl oz → mL Milliliter to LitermL → L

Convert Cubic Foot to Other Units

Cubic Foot to Liter→ L Cubic Foot to Milliliter→ mL Cubic Foot to Cubic Meter→ m³ Cubic Foot to US Gallon→ gal Cubic Foot to Imperial Gallon→ imp gal Cubic Foot to US Quart→ qt Cubic Foot to US Pint→ pt Cubic Foot to US Cup→ cup

Related Conversions

Liter to Cubic FootL → ft³ Milliliter to US GallonmL → gal Milliliter to Cubic FootmL → ft³ Cubic Meter to US Gallonm³ → gal Cubic Meter to Cubic Footm³ → ft³