Convert Pint to Cubic Inch (ptin³)

The pint is the standard pub-beer unit in the United Kingdom and a common measure for milk and cream worldwide.

28.875
1 pt28.875 in³NIST · BIPM accuracy

Pint to Cubic Inch Conversion Table

10 common values
PintCubic Inch
1 pt28.875 in³
2 pt57.75 in³
5 pt144.375 in³
10 pt288.75 in³
20 pt577.5 in³
50 pt1,443.75 in³
100 pt2,887.5 in³
200 pt5,775 in³
500 pt14,437.5 in³
1,000 pt28,875 in³

How to Convert Pint to Cubic Inch Manually

Step by Step

Converting pints to cubic inches is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

  1. 1
    Take your value in pints
    Start with the number of pints (pt) you want to convert.
  2. 2
    Multiply by 28.875
    The conversion factor from pt to in³ is 28.875. Multiply your value by this number.
  3. 3
    Read the result in cubic inches
    The result is your value in cubic inches (in³).
Practical Examples
1 pt
equals
28.875 in³
5 pt
equals
144.375 in³
10 pt
equals
288.75 in³
25 pt
equals
721.875 in³
100 pt
equals
2,887.5 in³

Formula

Multiply the value in pints by 28.875. For the reverse direction, multiply by 0.034632.

Forwardin³ = pt × 28.875
Reversept = in³ × 0.034632
Example: 10 pt × 28.875 = 288.75 in³

Tips

Use these in everyday conversions
  • 1 US pint = 473 ml; 1 UK imperial pint = 568 ml — a 20% difference.
  • UK pint = 20 UK fl oz; US pint = 16 US fl oz.
  • When reading a pint figure, always note country context.

Common Mistakes

Avoid these
  • Assuming a US pint equals a UK pint — 20% off.
  • Using "pint" in bulk commerce without specification.
  • Confusing dry pint (550 ml) with liquid pint (473 ml) in the US.

About Pint and Cubic Inch

What is the Pint?

The pint equals exactly one half of a US quart (0.473176473 liters) in the United States and 0.568261 liters in the United Kingdom (the imperial pint, 20% larger than the US pint). The British pint is iconic in pub culture — beer and cider are served in imperial pints in UK pubs, and the imperial pint glass is a regulated measure required by law. In the United States, milk is commonly sold by the pint (often as half-quart cartons), and ice cream containers are often pints (16 fl oz US). The pint relates to the gallon (8 pt = 1 gal), the quart (2 pt = 1 qt), the cup (2 cups = 1 US pt), and the fluid ounce (16 fl oz = 1 US pt; 20 fl oz = 1 imperial pt). The discrepancy between US and UK pints reflects the older 1824 imperial reform that the United States did not adopt.

  • UK draft beer (half-pint and pint glasses)
  • British doorstep milk delivery
  • US ice-cream and ale packaging
Real-world examples

A UK pub pint is 568 ml by law. A US pint of Ben & Jerry's ice cream is 473 ml. UK milk bottles are often pints.

What is the Cubic Inch?

The cubic inch equals exactly 16.387064 cubic centimeters and is the traditional American unit for engine displacement and small-volume manufacturing measurements. Classic American muscle cars were famously identified by their cubic-inch engine size: the Ford 'Boss 429' had a 429-cubic-inch (7.0-liter) V8, and the Chevrolet 'Big Block 454' was 7.4 liters. Modern American automakers have transitioned mostly to liter-based naming (e.g., 'Hemi 5.7'), but the cubic inch persists in vintage car culture and aviation engines. It is also used for printer-paper coverage and industrial tolerances. The cubic inch relates to the cubic foot (1,728 in³ = 1 ft³), the cubic centimeter (1 in³ ≈ 16.39 cm³), the milliliter (1 in³ ≈ 16.39 mL), and the US fluid ounce (1 fl oz ≈ 1.805 in³).

  • Classic US car engine displacement
  • Firearms chamber and cartridge specs
  • Some US machining and mould design
Real-world examples

350 cu in V8 = 5.7 L engine. 302 cu in Ford V8 = 4.9 L. Modern specs typically give litres.

Learn About Both Units

🧪 Reference

What is the Pint?

Read the unit page →
🧪 Reference

What is the Cubic Inch?

Read the unit page →

Pint to Cubic Inch FAQ

5 questions
How many cubic inches in a pint?
One pint equals 28.875 cubic inches.
How do I convert pints to cubic inches?
Multiply the pint value by 28.875 to get the equivalent in cubic inches.
What is 100 pints in cubic inches?
100 pints equals 2,887.5 cubic inches.
Is a pint bigger than a cubic inch?
Yes. 1 pint equals 28.875 cubic inches, so one pint is larger.
How to convert pints to cubic inches without a calculator?
Multiply by 28.88 for a quick estimate; use a calculator for precise results.

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