Volume converter
Convert millilitres, litres, teaspoons, tablespoons, cups, pints, gallons and fluid ounces. Useful for recipes, shopping, travel and everyday measurement checks.
Volume converter calculator
Enter an amount, choose the volume unit you have and choose the unit you want. The calculator converts through millilitres and shows the factor used.
Popular volume conversions
Use these quick buttons for common UK-friendly volume conversions.
How volume conversion works
Most volume conversions can be handled by converting the starting unit into millilitres, then converting that millilitre value into the target unit.
millilitres = original amount × ml per original unit
converted value = millilitres ÷ ml per target unitFor example, one litre is 1,000ml. A UK pint is about 568.26ml, so litres to UK pints means converting litres to millilitres first, then dividing by 568.26.
Common volume conversion factors
| Unit | Millilitre value used | Common use |
|---|---|---|
| 1 millilitre | 1ml | Small liquid measurements |
| 1 litre | 1,000ml | Drinks, fuel, household liquids |
| 1 teaspoon | 5ml | Cooking and medicine-style measures |
| 1 tablespoon | 15ml | Cooking and recipe measures |
| 1 metric cup | 250ml | Recipe volume estimates |
| 1 UK pint | 568.26125ml | UK draught drinks and milk references |
| 1 UK gallon | 4,546.09ml | Older UK volume references |
| 1 UK fluid ounce | 28.413ml | Older imperial liquid measures |
UK volume notes
The UK often uses metric units such as millilitres and litres for products, labels and everyday measurements. Pints are still common for draught beer, cider and some milk references.
- UK and US pints differ: a UK pint is about 568ml, while a US liquid pint is about 473ml.
- Gallons differ too: UK gallons and US gallons are not the same.
- Cooking can be different: cups and spoons are volume units, but cups-to-grams conversions depend on ingredient density.
For ingredients like flour, sugar and butter, use the cooking unit converter because weight depends on density.
Rounding volume conversions
For everyday use, one or two decimal places is usually enough. For cooking, it is often better to round to a practical kitchen amount, such as the nearest teaspoon, tablespoon or 25ml step.
Volume converter FAQs
How many millilitres are in a litre?
There are 1,000 millilitres in 1 litre.
How many millilitres are in a UK pint?
A UK pint is about 568.26 millilitres.
Are UK and US pints the same?
No. A UK pint is larger than a US liquid pint, so make sure the calculator or recipe says which pint it means.
Can I convert cups to grams with this volume converter?
Not accurately by volume alone. Cups to grams depends on the ingredient, so flour, sugar, butter and milk need different conversion values.