It is always said that everything is bigger in the US. True......EXCEPT liquid measurement.

A fluid ounce in US is the same as UK. An oz in weight is the same.

We also agree that 1 fluid oz = 1 oz weight. But there it ends.

For some reason the UK has decided that a 1 pint = 20 fluid oz.
Whereas in the USA perhaps more logical 1 pint = 1 pound (16oz)

It is therefore easier for the US to interchange fluid and weight in the same measurement... a cup . The cup of water is half an american pint and weighs half an american pound.


We have gone metric just to confuse things. But usefully 1ml liquid weighs 1 gram. For liquids therfore 1 fluid ounce is aprox. 28ml and weighs approx 28grams.

So much for liquids.

Dry goods go completely out the window. Cauliflower does not seem to flow as nicely as tea. And my rocket salad does not seem to weigh as much as a cup of sugar!. Even loose goods that "pour" are different. 1 cup of flour weighs 5 ounces (140g) but 1 cup of granulated sugar weighs 6.75 ounces(200g).

The only thing to do is to get a measuring jug and let 225mls equal one cup and 450mls (close to half a litre) equal 2 cups and see how much you can fit in. I would not dream of telling you what to do with bananas and carrots!