Skip to content

Cubic Feet to Gallons Converter

Convert cubic feet to US gallons and gallons to cubic feet instantly. Bidirectional volume converter with formula and common values.

ft³

Gallons

39.6468

gal

5.3 ft³ = 39.6468 gal

gal = ft³ × 7.48052

Cubic Feet to Gallons: 1 ft³ equals 7.48052 gal. To convert cubic feet to gallons, multiply by 7.48052 (gal = ft³ × 7.48052). For example, 10 ft³ = 74.8052 gal.

How to Convert Cubic Feet to Gallons

To convert from cubic feet to gallons, multiply the value by 7.48052. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Cubic Feet to Gallons: gal = ft³ × 7.48052
  • Gallons to Cubic Feet: ft³ = gal ÷ 7.48052

Cubic Feet to Gallons Conversion Chart

Cubic Feet (ft³)Gallons (gal)
0.10.748052
0.251.87013
0.53.74026
17.48052
214.96104
322.44156
537.4026
1074.8052
20149.6104
25187.013
50374.026
100748.052
2501870.13
10007480.52

Understanding the Units

What is a Gallon?

The US liquid gallon equals exactly 3.785411784 liters; the imperial (UK) gallon equals 4.54609 liters.

From the Old Northern French galun, originally a wine measure.

Common contexts: fuel, milk, paint.

Real-World Reference Points

Item Cubic Feet (ft³) Gallons (gal)
A milk jug (US)0.13371
Average car gas tank (US)1.871514

Related

Gallons to Liters Converter

Convert US gallons to liters and liters to gallons instantly with formula and common values.

Cups to Milliliters Converter

Convert cups to milliliters and milliliters to cups. US customary cup conversion.

Fluid Ounces to Milliliters Converter

Convert fluid ounces to milliliters and milliliters to fluid ounces instantly.

Pints to Liters Converter

Convert US pints to liters and liters to pints with formula and examples.

Tablespoons to Milliliters Converter

Convert tablespoons to milliliters and milliliters to tablespoons instantly.

Liters to Gallons Converter

Convert liters to US gallons and gallons to liters instantly.

FAQ

How many gallons are in a cubic foot?

One cubic foot equals approximately 7.48052 US gallons.

How do I convert cubic feet to gallons?

Multiply the number of cubic feet by 7.48052. For example, 5.3 ft³ × 7.48052 = 39.647 gallons.

How many cubic feet in 100 gallons?

100 gallons equals approximately 13.368 cubic feet.

Why is this conversion useful?

It is commonly used for water tanks, aquariums, and pool calculations where volume may be measured in either unit.

How many gallons are in 1 cubic feet?

1 ft³ equals 7.48052 gal.

How do you convert cubic feet to gallons?

Multiply the cubic feet value by 7.48052. Formula: gal = ft³ × 7.48052.

How many gallons are in 5 cubic feet?

5 ft³ = 37.4026 gal.

How do you convert gallons back to cubic feet?

Use the inverse formula: ft³ = gal ÷ 7.48052. For example, 1 gal = 0.133681 ft³.