🧊 pt to gal — US Pint to US Gallon Converter

Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.

1 unit =
From
To
Formula 1 pt = 0.12499993 gal
UnitNameValue
0.001 pt0.000125 gal
0.01 pt0.00125 gal
0.1 pt0.0125 gal
1 pt0.125 gal
5 pt0.625 gal
10 pt1.25 gal
50 pt6.25 gal
100 pt12.5 gal
1000 pt125 gal
Last updated: March 2026

US Pint to US Gallon Conversion Table

Common us pint values converted to us gallon — factor: 1 pt = 0.125 gal

US Pint (pt)US Gallon (gal)Context
0.0625 pt0.007812 galTablespoon
0.125 pt0.01562 galQuarter cup
0.25 pt0.03125 galHalf cup
0.5 pt0.0625 galOne cup
1 pt0.125 galPint glass
2 pt0.25 galOne quart
4 pt0.5 galHalf gallon
8 pt1 galOne gallon
16 pt2 gal2 gallons
32 pt4 gal4 gallons
64 pt8 gal8 gallons
128 pt16 gal16 gallons
256 pt32 gal32 gallons
336 pt42 galOne barrel
512 pt64 galLarge drum

About US Pint to US Gallon Conversion

Converting us pint to us gallon comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using us gallon, or a laboratory protocol may specify volumes in us pint that need to be measured with equipment calibrated in us gallon.

In everyday use, knowing that 5 pt = 0.625 gal and 10 pt = 1.25 gal covers most common situations. For bulk calculations, 100 pt = 12.5 gal is a useful anchor. The reverse conversion — us gallon back to us pint — uses the factor 8, so 1 gal = 8 pt.

All conversions use the internationally recognized factor of exactly 1 pt = 0.125 gal. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.

Quick Answer

Formula: US Gallon = US Pint × 0.12499993

Multiply any us pint value by 0.12499993 to get us gallon. One us pint equals 0.12499993 gal.

Reverse: US Pint = US Gallon × 8.0000042

Worked Examples

One US gallon
8 pt × 0.12499993 = 0.99999947 gal
8 US pints = 1 US gallon.
One US pint
1 pt × 0.12499993 = 0.12499993 gal
1 pt = 0.125 US gallons.
One US quart
2 pt × 0.12499993 = 0.24999987 gal
2 pints = 0.25 gallons = 1 quart.
Half gallon
4 pt × 0.12499993 = 0.49999974 gal
4 pints = 0.5 gallons.

Mental Math Tricks

÷ 8 exactly

US pints ÷ 8 = US gallons. Exact.

Key anchor

8 pt = 1 gal, 4 pt = ½ gal = 1 qt.

Reverse

Gallons × 8 = pints.

Who Uses This Conversion?

Bartender

Serves draft beer in pint glasses, the standard US serving at 16 fl oz.

Blood Bank Tech

Collects whole blood donations at roughly one US pint (473 mL) per standard unit.

Farmers Market Vendor

Sells fresh berries and herbs in pint containers, the US standard berry basket.

Ice Cream Shop Owner

Portions premium ice cream into pint containers for take-home sales.

Home Cook

Follows American baking recipes calling for a pint of cream, stock, or buttermilk.

Paramedic

Estimates blood loss in pints as a rapid clinical gauge during emergency response.

Frequently Asked Questions

About US Pint and US Gallon

US Pint (pt)

The US liquid pint is one-eighth of a US gallon, exactly 16 fluid ounces or 473.176 mL. Its name comes from Old French pinte. The pint has been a standard tavern measure since at least the 14th century.

Pints remain the defining unit for beer serving sizes in many countries. A US pint is 16 fl oz, while the UK pint is 568 mL. Blood banks measure donations in pints.

Interesting fact: 'A pint's a pound, the world around' is a US mnemonic. A pint of water weighs approximately one pound (actually 1.043 lb).

US Gallon (gal)

The US liquid gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. It traces its origins to the Queen Anne wine gallon of 1707, which American colonies adopted.

The US gallon differs from the UK Imperial gallon by about 16.5%. This matters for fuel economy: a US MPG figure is lower than the equivalent UK MPG for the same car.

Interesting fact: The United States, Liberia, and Myanmar are the only countries using the US gallon as a primary everyday volume unit.