A US liquid pint is one eighth of a US gallon.
Pints to Gallons Converter — pt to gal
Convert Pint (pt) to Gallon (gal) using the exact conversion factor (1 pint = 0.125 gallon). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Pints to Gallons converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A US liquid gallon is exactly 3.785411784 liters.
Result = input x 0.000473176473 / 0.003785411784.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pints to Gallons
Pint and Gallon appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Pint is typically associated with united States (beer serving, cooking, dairy), while Gallon is typically associated with united States (fuel, beverage, and liquid measurement).
Formula
gallons = pints × 0.125
This factor comes from each unit's defined relationship to the category's base unit: 1 pint equals 0.000473176473 base units, and 1 gallon equals 0.003785411784 base units, so dividing one by the other gives the direct pint-to-gallon factor of 0.125.
Simple example
1 pt × 0.125 = 0.125 gal
1 pint = 0.125 gallons.
Real-world example
10 pt × 0.125 = 1.25 gal
10 pints = 1.25 gallons.
Conversion table
| Pint (pt) | Gallon (gal) |
|---|---|
| 1 pt | 0.125 gal |
| 5 pt | 0.625 gal |
| 10 pt | 1.25 gal |
| 25 pt | 3.125 gal |
| 50 pt | 6.25 gal |
| 100 pt | 12.5 gal |
Reverse conversion: Gallon to Pint
0.125 gal × 8 = 1 pt
0.125 gallons = 1 pint.
pints = gallons × 8
For a page dedicated to this direction, see Gallon to Pint.
Pint vs. Gallon
| Aspect | Pint | Gallon |
|---|---|---|
| Family | US customary unit | US customary unit |
| Typical use | US beer and beverage serving sizes | Fuel pump and vehicle fuel-economy measurement in the US |
| Where it's used | United States (beer serving, cooking, dairy) | United States (fuel, beverage, and liquid measurement) |
Understanding the Pint
Pint (pt) measures volume. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 liters. It is classified as a US customary unit.
Where it's used: United States (beer serving, cooking, dairy)
Uses of the Pint today
- US beer and beverage serving sizes
- US recipe measurement
- US dairy packaging (pint containers)
History of the Pint
The pint follows the same English wine-gallon lineage as the US gallon and quart, retained by the US after Britain's 1824 switch to a different imperial gallon standard.
Historical origin. Pint was not the invention of a single named person; it developed through the process described above.
Understanding the Gallon
Gallon (gal) measures volume. The US liquid gallon is defined as exactly 231 cubic inches, equal to 3.785411784 liters. It is classified as a US customary unit.
Where it's used: United States (fuel, beverage, and liquid measurement)
US gallon vs. imperial gallon. The US liquid gallon (3.785411784 L) and the British imperial gallon (4.54609 L) are different units with the same name; always confirm which one a source is using.
Uses of the Gallon today
- Fuel pump and vehicle fuel-economy measurement in the US
- Beverage and liquid product packaging in the US
- Cooking and recipe measurement in US customary units
History of the Gallon
The US gallon descends from the English wine gallon of 231 cubic inches, a standard used for measuring wine in medieval and early modern England, which the American colonies inherited and retained even after England moved to a different imperial gallon in 1824.
England's 1824 Weights and Measures Act replaced the old wine gallon with a new imperial gallon (based on 10 pounds of water), but the US kept the older 231-cubic-inch definition — which is why the US gallon (3.785 L) and the imperial gallon (4.546 L) differ by about 20% today.
Historical origin. Gallon was not the invention of a single named person; it developed through the process described above.
Pint — sources
- NIST Handbook 44, Appendix C — General tables of units including the US pint definition.
Gallon — sources
- NIST Handbook 44, Appendix C — General tables of units of measurement, including the US gallon definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons are in 1 pint?
1 pint equals 0.125 gallons, using the exact defined conversion factor rather than an estimate.
How do I convert pint to gallon?
Multiply the pint value by 0.125. The converter above does this instantly to whatever precision you set.
How do I convert gallon back to pint?
Use the reverse factor: 1 gallon equals 8 pints. You can also use the swap control in the converter above to flip the direction instantly.
What is a pint?
Pint (pt) measures volume. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 liters. It is classified as a US customary unit.
What is a gallon?
Gallon (gal) measures volume. The US liquid gallon is defined as exactly 231 cubic inches, equal to 3.785411784 liters. It is classified as a US customary unit.
Is the pint to gallon conversion exact?
Yes. The US liquid gallon is defined as exactly 231 cubic inches, equal to 3.785411784 liters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
What is the difference between us gallon vs. imperial gallon?
The US liquid gallon (3.785411784 L) and the British imperial gallon (4.54609 L) are different units with the same name; always confirm which one a source is using.
Where is the pint still used today?
United States (beer serving, cooking, dairy)