An imperial pint is one eighth of an imperial gallon.
Imperial pints to Milliliters Converter — imp pt to mL
Convert Imperial pint (imp pt) to Milliliter (mL) using the exact conversion factor (1 imperial pint = 568.26125 milliliter). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Imperial pints to Milliliters 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.
Milliliter is 0.001 liter units.
Result = input x 0.00056826125 / 1e-6.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial pints to Milliliters
Imperial pint and Milliliter 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. Imperial pint is typically associated with united Kingdom, Ireland (beer and cider serving is legally defined in imperial pints), while Milliliter is typically associated with standard small-volume unit worldwide.
Formula
milliliters = imperial pints × 568.26125
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial pint equals 0.00056826125 base units, and 1 milliliter equals 0.000001 base units, so dividing one by the other gives the direct imperial pint-to-milliliter factor of 568.26125.
Simple example
1 imp pt × 568.26125 = 568.26125 mL
1 imperial pint = 568.26125 milliliters.
Real-world example
10 imp pt × 568.26125 = 5,682.6125 mL
10 imperial pints = 5,682.6125 milliliters.
Conversion table
| Imperial pint (imp pt) | Milliliter (mL) |
|---|---|
| 1 imp pt | 568.26125 mL |
| 5 imp pt | 2,841.30625 mL |
| 10 imp pt | 5,682.6125 mL |
| 25 imp pt | 14,206.53125 mL |
| 50 imp pt | 28,413.0625 mL |
| 100 imp pt | 56,826.125 mL |
Reverse conversion: Milliliter to Imperial pint
568.26125 mL × 0.001759753986 = 1 imp pt
568.26125 milliliters = 1 imperial pint.
imperial pints = milliliters × 0.00175975398639
For a page dedicated to this direction, see Milliliter to Imperial pint.
Imperial pint vs. Milliliter
| Aspect | Imperial pint | Milliliter |
|---|---|---|
| Family | UK/imperial customary unit | SI derived (metric prefix) unit |
| Typical use | UK and Irish pub beer/cider serving (a legally protected serving size) | Medicine dosing (worldwide, including in the US) |
| Where it's used | United Kingdom, Ireland (beer and cider serving is legally defined in imperial pints) | Standard small-volume unit worldwide |
Understanding the Imperial pint
Imperial pint (imp pt) measures volume. The imperial pint is one-eighth of an imperial gallon: exactly 0.56826125 liters — notably the standard UK beer serving size. It is classified as a UK/imperial customary unit.
Where it's used: United Kingdom, Ireland (beer and cider serving is legally defined in imperial pints)
Imperial pint vs. US pint. The imperial pint (568 mL) is about 20% larger than the US pint (473 mL) — a British 'pint of beer' is meaningfully more beer than an American one.
Uses of the Imperial pint today
- UK and Irish pub beer/cider serving (a legally protected serving size)
- UK milk delivery (historically and in some contexts still)
History of the Imperial pint
The imperial pint follows from Britain's 1824 imperial gallon; it remains legally protected as the mandatory serving measure for draught beer and cider in UK and Irish pubs, one of the few contexts where imperial units remain legally mandated in the UK's otherwise largely metric system.
Historical origin. Imperial pint was not the invention of a single named person; it developed through the process described above.
Understanding the Milliliter
Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.
Where it's used: Standard small-volume unit worldwide
Uses of the Milliliter today
- Medicine dosing (worldwide, including in the US)
- Cooking and recipe measurement outside the US
- Beverage and small-container labeling
History of the Milliliter
The milliliter follows directly from the liter via the 'milli-' SI prefix. It is notable as one of the few metric units in routine US use, since medicine dosing (syringes, liquid medication) is specified in milliliters even in the US.
Historical origin. Milliliter was not the invention of a single named person; it developed through the process described above.
Imperial pint — sources
- UK Weights and Measures Act 1985 — Maintains the imperial pint as the legal draught beer/cider serving measure.
Milliliter — sources
- BIPM SI Brochure — SI prefixes — Defines 'milli-' as the prefix for 10⁻³.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliters are in 1 imperial pint?
1 imperial pint equals 568.26125 milliliters, using the exact defined conversion factor rather than an estimate.
How do I convert imperial pint to milliliter?
Multiply the imperial pint value by 568.26125. The converter above does this instantly to whatever precision you set.
How do I convert milliliter back to imperial pint?
Use the reverse factor: 1 milliliter equals 0.001759754 imperial pints. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial pint?
Imperial pint (imp pt) measures volume. The imperial pint is one-eighth of an imperial gallon: exactly 0.56826125 liters — notably the standard UK beer serving size. It is classified as a UK/imperial customary unit.
What is a milliliter?
Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.
Is the imperial pint to milliliter conversion exact?
Yes. The imperial pint is one-eighth of an imperial gallon: exactly 0.56826125 liters — notably the standard UK beer serving size. 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 imperial pint vs. us pint?
The imperial pint (568 mL) is about 20% larger than the US pint (473 mL) — a British 'pint of beer' is meaningfully more beer than an American one.
Where is the imperial pint still used today?
United Kingdom, Ireland (beer and cider serving is legally defined in imperial pints)