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Cubic Feet to US Liquid Gallons Converter

Convert cubic feet to US liquid gallons instantly with this free cubic feet to US liquid gallons converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.

What is 1 cubic foot in US liquid gallons?

1 cubic foot is equal to 7.48051948 US liquid gallons.

1 × 7.48051948 = 7.48051948 US liquid gallons

Result7.480519481

1 cubic foot = 7.480519481 US liquid gallons

Cubic feet to US liquid gallons formula

gal = ft³ × 7.48051948

The cubic feet to US liquid gallons conversion factor is 7.48051948052, which is exact by definition. 1 cubic foot = 7.48051948052 US liquid gallons, and 1 US liquid gallon = 0.133680555556 cubic feet.

Regional note. Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the US liquid gallon.

Worked examples

  • 2 cubic feet = 14.961039 US liquid gallons — 2 × 7.48051948 = 14.961039 US liquid gallons
  • 6 cubic feet = 44.8831169 US liquid gallons — 6 × 7.48051948 = 44.8831169 US liquid gallons
  • 10 cubic feet = 74.8051948 US liquid gallons — 10 × 7.48051948 = 74.8051948 US liquid gallons

Cubic feet to US liquid gallons conversion table

Every value below is calculated with the exact conversion factor and rounded for display.

cubic feet to US liquid gallons conversion table
Cubic feet (ft³)US liquid gallons (gal)
1 ft³7.4805195 gal
2 ft³14.961039 gal
3 ft³22.441558 gal
4 ft³29.922078 gal
5 ft³37.402597 gal
6 ft³44.883117 gal
7 ft³52.363636 gal
8 ft³59.844156 gal
9 ft³67.324675 gal
10 ft³74.805195 gal
12 ft³89.766234 gal
15 ft³112.20779 gal
20 ft³149.61039 gal
25 ft³187.01299 gal
30 ft³224.41558 gal
50 ft³374.02597 gal
75 ft³561.03896 gal
100 ft³748.05195 gal
500 ft³3,740.2597 gal
1,000 ft³7,480.5195 gal

When you need to convert cubic feet to US liquid gallons

  • Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
  • Comparing fuel prices and tank capacities between countries.
  • Working out paint, fertiliser or pool chemical quantities from instructions written for another market.

Getting a feel for the scale

A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.

US liquid gallon (gal)

  • A US milk jug is 1 gallon
  • A mid-size car tank holds 12–16 US gallons

Common mistakes to avoid

  • Dividing when you should multiply. Because 1 cubic foot = 7.48052 US liquid gallons, the answer should be larger than the number you started with.
  • Mixing US and Imperial liquid measures. The Imperial gallon and pint are about 20% larger than their US counterparts, which is enough to ruin a recipe or misstate fuel economy.
  • Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.

How precise does the answer need to be?

Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.

How these units are defined

  • Cubic foot (ft³): Used for shipping volume, gas metering and appliances. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
  • US liquid gallon (gal): Exactly 3.785411784 liters — the gallon used in the United States. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.

Frequently asked questions

What is 1 cubic foot in US liquid gallons?
1 cubic foot is equal to 7.48051948 US liquid gallons.
How many cubic feet are in one US liquid gallon?
There are 0.133680556 cubic feet in 1 US liquid gallon.
How do you convert cubic feet to US liquid gallons?
Multiply the number of cubic feet by 7.48051948 — or use the formula gal = ft³ × 7.48051948.
What is 6 cubic feet in US liquid gallons?
6 cubic feet is 44.8831169 US liquid gallons. 6 × 7.48051948 = 44.8831169 US liquid gallons.
Is the cubic feet to US liquid gallons conversion exact?
Yes. The relationship is fixed by definition, so 7.48051948052 is an exact conversion factor — only the displayed result is rounded.
Does this use US or Imperial US liquid gallons?
Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the US liquid gallon.