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Single conversion
To convert from Cubic foot (ft3) to Gallon (gal), use the following formula:
Let's convert 5 Cubic foot (ft3) to Gallon (gal).
Using the formula:
Therefore, 5 Cubic foot (ft3) is equal to Gallon (gal).
Here are some quick reference conversions from Cubic foot (ft3) to Gallon (gal):
| Cubic feet | Gallons |
|---|---|
| 0.000001 ft3 | gal |
| 0.001 ft3 | gal |
| 0.1 ft3 | gal |
| 1 ft3 | gal |
| 2 ft3 | gal |
| 3 ft3 | gal |
| 4 ft3 | gal |
| 5 ft3 | gal |
| 6 ft3 | gal |
| 7 ft3 | gal |
| 8 ft3 | gal |
| 9 ft3 | gal |
| 10 ft3 | gal |
| 20 ft3 | gal |
| 30 ft3 | gal |
| 40 ft3 | gal |
| 50 ft3 | gal |
| 100 ft3 | gal |
| 1000 ft3 | gal |
| 10000 ft3 | gal |
For all Volume converters, choose units using the From/To dropdowns above.
A cubic foot (ft3) is a standard unit of volume used in the United States imperial system.
It represents the space inside a cube that is one foot long on every side. The plural form is cubic feet.
It can be hard to picture a measurement, but a cubic foot is a widespread size.
Imagine a standard cardboard box measuring 1 foot wide, 1 foot long, and 1 foot high. This space can hold:
This real-world comparison helps you estimate the volume of everyday spaces, from the capacity of a fish tank to the amount of soil needed for a garden bed.
The cubic foot is used to measure volume in many household and commercial applications.
You will often see it used to describe:
In a world that often uses the metric system, it's helpful to know how to convert cubic feet.
This is crucial for international trade, scientific work, or just understanding product specs from other countries.
For a quick estimate, remember that a cubic foot can hold more than 28 one-liter water bottles.
A gallon (gal) is a unit of volume, most commonly associated with the imperial and US customary systems of measurement.
It is equal to 128 Fluid Ounces (fl-oz).
A common point of confusion is the difference between the US gallon and the imperial gallon (used in the UK and other Commonwealth nations).
They are not the same size!
This difference stems from historical definitions that were standardized differently in the US and Britain during the 18th and 19th centuries.
So, if you're comparing fuel efficiency, remember that "miles per gallon" ratings are based on different-sized gallons!
The word "gallon" has a rich history, tracing its roots back through several languages.
It originates from the Old Northern French word galon, which referred to a liquid measure.
This term is believed to have originated from the Gallo-Roman word gallēta, meaning a "pail" or "bucket." The ultimate origin likely goes back to a Celtic word, highlighting the unit's long-standing use in European trade and daily life for centuries.
While we typically associate the gallon with liquids, there is also a US dry gallon.
This unit, not commonly used today, is equivalent to one-eighth of a bushel, or about 4.405 liters. It was historically used to measure dry goods such as grain or fruit.
This is also why the famous "10-gallon hat" is a misnomer; its name doesn't refer to its volume.
Instead, it is thought to originate from the Spanish word galón, meaning "braid," which refers to the braided band on the hat.