Definition:US/Volume/Gallon

Definition

The (US) gallon is a unit of volume used in the United States.

It is defined as $231$ cubic inches, which is exactly $3.78541 \, 1784$ litres.

Conversion Factors

\(\ds \)

\(\)

\(\ds 1\)

gallon (US)

\(\ds \)

\(=\)

\(\ds 4\)

quarts (US)

\(\ds \)

\(=\)

\(\ds 231\)

cubic inches

\(\ds \)

\(=\)

\(\ds 3.78541 \, 1784 \times 10^{-3}\)

cubic metres

\(\ds \)

\(=\)

\(\ds 3.78541 \, 1784\)

litres

\(\ds \)

\(=\)

\(\ds 3785.41178 \, 4\)

millilitres

\(\ds \)

\(=\)

\(\ds 0.832 \, 674\)

imperial gallon

Hence $6$ US gallons is approximately $5$ imperial gallons.

Symbol

$\mathrm {USgal}$

The symbol for the US gallon is $\mathrm {USgal}$.

Its $\LaTeX$ code is \mathrm {USgal} .

Also known as

The US gallon can sometimes be seen rendered as U.S. gallon.

Also see

• Definition:Gallon (Imperial)

Sources

• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.3$ British and other units
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): gallon Symbol: gal.${}$: 2.
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): gallon Symbol: gal.${}$: 2.