A US liquid pint is one eighth of a US gallon.
Pints to Cubic inches Converter — pt to in3
Convert Pint (pt) to Cubic inch (in3) using the exact conversion factor (1 pint = 28.875 cubic inch). See the formula, worked examples, conversion table, history, and common uses.
Pints to Cubic inches 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 cubic inch is the volume of a one-inch cube.
Result = input x 0.000473176473 / 1.6387064e-5.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pints to Cubic inches
Pint and Cubic inch 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 most often used for us beer and beverage serving sizes.
Formula
cubic inches = pints × 28.875
This factor comes from each unit's defined relationship to the category's base unit: 1 pint equals 0.000473176473 base units, and 1 cubic inch equals 0.000016387064 base units, so dividing one by the other gives the direct pint-to-cubic inch factor of 28.875.
Simple example
1 pt × 28.875 = 28.875 in3
1 pint = 28.875 cubic inches.
Real-world example
10 pt × 28.875 = 288.75 in3
10 pints = 288.75 cubic inches.
Conversion table
| Pint (pt) | Cubic inch (in3) |
|---|---|
| 1 pt | 28.875 in3 |
| 5 pt | 144.375 in3 |
| 10 pt | 288.75 in3 |
| 25 pt | 721.875 in3 |
| 50 pt | 1,443.75 in3 |
| 100 pt | 2,887.5 in3 |
Reverse conversion: Cubic inch to Pint
28.875 in3 × 0.03463203463 = 1 pt
28.875 cubic inches = 1 pints.
pints = cubic inches × 0.034632034632
For a page dedicated to this direction, see Cubic inch to Pint.
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 Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
Pint — sources
- NIST Handbook 44, Appendix C — General tables of units including the US pint definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inches are in 1 pint?
1 pint equals 28.875 cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert pint to cubic inch?
Multiply the pint value by 28.875. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch back to pint?
Use the reverse factor: 1 cubic inch equals 0.0346320346 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 cubic inch?
Cubic inch (in3) is a unit of volume.
Is the pint to cubic inch conversion exact?
Yes. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 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.
Where is the pint still used today?
United States (beer serving, cooking, dairy)