How the volume converter works
Last updated 10 November 2026
This converter uses exact definitions of each unit, so results are as accurate as the number you enter.
How it works
- Each unit is a fixed number of litres.
- Cups and spoons are the metric ones: 250 ml, 15 ml and 5 ml.
Worked example
With the starting figures:
- 5.0000 usgal is 18.927059 l.
Where you will use it
Recipes, fuel, paint, pool chemicals and water tanks all use volume, and not always in the same unit. A recipe from overseas may use cups and fluid ounces, while a South African shop sells paint and milk in litres. This converter handles the swap and shows the answer in every unit.
Units included
The cups and spoons are the metric ones: a cup is two hundred and fifty millilitres, a tablespoon fifteen and a teaspoon five.
- Millilitres, litres and cubic metres
- Metric teaspoons, tablespoons and cups
- US fluid ounces, US gallons and UK gallons
US and imperial differ
A US gallon is smaller than a UK gallon, and the same difference runs through pints and quarts. This converter lists both gallons and the US fluid ounce, which is the one used in most American recipes and product labels. If a source says gallon or ounce, check which country it means before you convert.
Handy checks
- A litre is a thousand millilitres.
- Big bottles of cool drink in a shop are usually in litres or part-litres.
- A cubic metre is a thousand litres, which matters when you order water or sand.
Related tools
See the weight converter and the length converter for other kitchen and building sums. Nothing you enter is stored.
Things to watch
- US and imperial fluid ounces differ. Only the US one is listed.
The conversion factors are definitions, not measurements. They are listed with their source in the data notes. Nothing you enter is stored or sent.
Like every tool on MoneyMzansi, this one runs entirely in your browser. There is no account, no upload and no sign-up, so it keeps working even if your connection drops once the page has loaded.