🛢️ ft³ → gal Converter
Translate storage tank or aquarium volumes from cubic feet to gallons.
Handy for pool calculations, brewing, and fluid storage planning.
12 ft³ equals
89.7662 gal
Liters: 339.8022 L
Quarts: 359.06 qt
How to Use This Calculator
Enter cubic feet
Provide the volume measured in ft³.
Review gallons
The converter multiplies by 7.48052 to produce gallons.
Check supporting units
Liters and quarts help when comparing to container sizes or recipes.
Formula
1 ft³ = 7.48052 gal (US)
Gallons = ft³ × 7.48052
Liters = ft³ × 28.3168466
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Many “volume per area” calculations start with cubic feet. When it’s time to fill tanks or order containers, you need gallons and liters instead. This converter makes the jump quickly and accurately.
It uses exact SI conversion factors—stemming from 1 foot = 0.3048 m—so results align with engineering and scientific documentation.
The quarts output is a convenient reminder for smaller container conversions (1 gallon = 4 quarts).
Frequently Asked Questions
Does this use U.S. gallons?
Yes. For imperial (UK) gallons, multiply ft³ by 6.22884 instead, or extend the converter.
Can I convert gallons back to ft³?
Divide gallons by 7.48052, or use the general volume converter for multiple unit conversions.
What about fluid ounces?
Multiply gallons by 128. Use the cups/ounces converters for more kitchen-friendly conversions.
Is the result precise enough for billing?
Yes. The converter retains sufficient decimal precision for engineering and regulatory use.