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Unit Converter

Conversion formula

The conversion factor from cubic feet to gallons is 7.4805194805226, which means that 1 cubic foot is equal to 7.4805194805226 gallons:

1 ft3 = 7.4805194805226 gal

To convert 40 cubic feet into gallons we have to multiply 40 by the conversion factor in order to get the volume amount from cubic feet to gallons. We can also form a simple proportion to calculate the result:

1 ft3 → 7.4805194805226 gal

40 ft3 → V(gal)

Solve the above proportion to obtain the volume V in gallons:

V(gal) = 40 ft3 × 7.4805194805226 gal

V(gal) = 299.2207792209 gal

The final result is:

40 ft3 → 299.2207792209 gal

We conclude that 40 cubic feet is equivalent to 299.2207792209 gallons:

40 cubic feet = 299.2207792209 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.0033420138888875 × 40 cubic feet.

Another way is saying that 40 cubic feet is equal to 1 ÷ 0.0033420138888875 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty cubic feet is approximately two hundred ninety-nine point two two one gallons:

40 ft3 ≅ 299.221 gal

An alternative is also that one gallon is approximately zero point zero zero three times forty cubic feet.

Conversion table

cubic feet to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from cubic feet to gallons

cubic feet (ft3) gallons (gal)
41 cubic feet 306.701 gallons
42 cubic feet 314.182 gallons
43 cubic feet 321.662 gallons
44 cubic feet 329.143 gallons
45 cubic feet 336.623 gallons
46 cubic feet 344.104 gallons
47 cubic feet 351.584 gallons
48 cubic feet 359.065 gallons
49 cubic feet 366.545 gallons
50 cubic feet 374.026 gallons