US Pints to Millilitres converter
This free volume converter changes US liquid pints (pt) into millilitres (mL) and back again. It is handy for recipes, lab work, home brewing, and any task that mixes US and metric measurements. Note this is the US pint, which is smaller than the UK imperial pint.
US pint vs UK pint — a critical distinction
Many conversion errors come from mixing up the two pints:
| Pint type | Volume | Common use |
|---|---|---|
| US liquid pint | 473.176 mL | Cooking, US recipes, US retail |
| UK imperial pint | 568.261 mL | Beer in UK pubs, UK recipes |
The UK pint is about 20% larger. If a British recipe calls for 1 pint of stock and you measure a US pint, you will be 95 mL short. This converter uses the US liquid pint throughout.
How it works
The conversion uses one exact factor derived from the legal definition of the US gallon (231 cubic inches, divided into 8 pints) with one inch exactly 2.54 cm:
mL = pints × 473.176473
pints = mL ÷ 473.176473Type a value in either field and the other updates in real time. The tool converts in both directions simultaneously, so you can start from either unit.
Example calculations
Convert 2 US pints to millilitres:
- 2 × 473.176473 = 946.35 mL
And the reverse, 1000 mL to pints:
- 1000 ÷ 473.176473 ≈ 2.11 pt
Quick reference table
| US pints (pt) | Millilitres (mL) | Common equivalence |
|---|---|---|
| 0.5 pt | 236.59 mL | 1 US cup |
| 1 pt | 473.18 mL | 2 cups |
| 2 pt | 946.35 mL | 1 US quart |
| 4 pt | 1892.71 mL | Half a US gallon |
| 8 pt | 3785.41 mL | 1 US gallon |
| 10 pt | 4731.76 mL | — |
Note that half a US pint (0.5 pt) is exactly 1 US cup (236.59 mL) — a useful bridge when scaling between US volume units and metric.
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When you need this conversion
The US pint to millilitre conversion comes up most often in these situations:
- Cooking from US recipes: American cookbooks and food websites use pints, cups, and quarts; European recipes use millilitres and litres. This converter bridges the two systems.
- Home brewing: Beer recipes are commonly written in US gallons and pints; fermentation vessels and measuring equipment in many countries are calibrated in millilitres and litres.
- Medical and laboratory contexts: Fluid volumes in US clinical settings are often documented in ounces and pints, while lab analysis protocols use metric units.
- Retail and import: US products labelled in pints need a metric equivalent for regulatory compliance in countries that require dual labelling.
Relationship to other US volume units
The US liquid pint fits into a hierarchy of US customary volume units:
2 cups = 1 pint (473.18 mL)
2 pints = 1 quart (946.35 mL)
4 quarts = 1 gallon (3785.41 mL)If you know the millilitre value of a US cup (236.59 mL) and a US gallon (3785.41 mL), you can check any pint conversion as a sanity check — 1 pint should be exactly halfway between one cup and one quart.