OneEquals

Cubic Feet to Gallons Converter (Cubic Feet to US Gallons)

1 cubic foot = 7.480519481 US gallons. To convert ft³ to gal, multiply by 7.480519481.

⇄

100 ft³ = 748.052 gal

1 ft³
7.4805 gal
1 gal
0.1337 ft³
10 ft³
74.8052 gal
100 ft³
748.0519 gal

How to convert Cubic Feet to Gallons

1 cubic foot equals 7.480519481 US gallons, so the conversion is a single multiplication.

gal = ft³ × 7.480519481

Example: 150 ft³ × 7.480519481 = 1,122.078 gal.

About the US gallon

US Gallon (gal)

The US gallon is defined as 231 cubic inches, exactly 3.785411784 liters. It's about 17% smaller than the imperial (UK) gallon.

1 cubic foot in every volume unit

Milliliters28,316.847 mL
US Fluid Ounces957.506 fl oz
Liters28.317 L
US Gallons7.481 gal
US Cups119.688 cup
Tablespoons1,915.013 tbsp
Teaspoons5,745.039 tsp
US Quarts29.922 qt
US Pints59.844 pt
Imperial Gallons6.229 imp gal
Imperial Quarts24.915 imp qt
Imperial Pints49.831 imp pt
Imperial Fluid Ounces996.614 imp fl oz
Metric Cups113.267 metric cup
Deciliters283.168 dL
Centiliters2,831.685 cL
Cubic Meters0.02832 m³
Cubic Centimeters28,316.847 cm³
Cubic Inches1,728 in³
Cubic Yards0.03704 yd³
Oil Barrels0.1781 bbl
Acre-Feet0.00002296 ac·ft
US Bushels0.8036 bu
US Pecks3.214 pk
US Dry Pints51.428 dry pt
Gallons to Cubic FeetReverse conversionLiters to Gallons1 L = 0.2642 galGallons to Liters1 gal = 3.7854 LQuarts to Gallons1 qt = 0.25 galGallons to Quarts1 gal = 4 qtGallons to oz1 gal = 128 fl ozoz to Gallons1 fl oz = 0.007813 galCubic Yards to Cubic Feet1 yd³ = 27 ft³Cubic Feet to Cubic Yards1 ft³ = 0.03704 yd³

Quick answers

How many ounces in a cup?8 US fluid ouncesHow many cups in a quart?4 US cupsHow many teaspoons in a tablespoon?3 teaspoonsHow many ounces in a gallon?128 US fluid ouncesHow many liters in a gallon?3.785 litersHow many quarts in a gallon?4 US quartsHow many tablespoons in 1/4 cup?4 tablespoons

Calculators

Concrete CalculatorWork out how much concrete a slab, footing or post hole needs, in…

Guides

GuideHow Much Concrete Do I Need for a Slab?Work out concrete for a slab in cubic yards and bags: length × width × thickness, with worked…GuideDry vs Liquid Measuring Cups: What’s the Difference?Dry and liquid measuring cups hold the same volume, but you fill and read them differently. When to…

All guides →

Cubic Feet to Gallons FAQ

How many US gallons are in a cubic foot?

1 cubic foot = 7.480519481 US gallons.

How many cubic feet are in a US gallon?

1 US gallon = 0.1336805556 cubic feet.

How do I convert ft³ to gal?

Use gal = ft³ × 7.480519481. For example, 10 ft³ = 74.805 gal.

Can I print this Cubic Feet to Gallons chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.