Cooking measurement conversion tables

Lynn Wright / 06 January 2016

Convert US measures and oven temperatures to their British equivalents with ease. Our helpful conversion tables let you quickly convert metric, imperial and US cup measures.



In US recipes, ingredients are typically measured in either pounds and ounces or cups and spoons, where UK recipes call for metric measures.

Take the guesswork out of baking and cooking your favourite US recipes with our handy guide to weight and volume conversions.

Don’t mix imperial and metric measures when following a recipe – pick one and stick to it.

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Volume conversions for liquids

Imperial US cups Metric
1/2 fl oz 1 tablespoon 15ml
1 fl oz 1/8 cup 30ml
2 fl oz 1/4 cup 60ml
2 1/2 fl oz 1/3 cup 80ml
4 fl oz 1/2 cup 120ml
5 fl oz 2/3 cup 160ml
6 fl oz 3/4 cup 180ml
8 fl oz 1 cup 240ml

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There’s a small difference between metric cups and US cups. A standard metric cup holds 250ml of liquid whereas a US cup holds slightly less at 240ml. With most recipes, this slight difference won’t affect the final result. If in doubt, convert the US cup measurements to metric milliliters.

Weight conversions for dry ingredients

Imperial Metric
1/4 oz 7g
1/2 oz 15g
1 oz 30g
2 oz 60g
3 oz 85g
4 oz 110g
5 oz 140g
6 oz 170g
7 oz 200g
8 oz 225g
9 oz 255g
10 oz 280g
11 oz 310g
12 oz 340g
13 oz 370g
14 oz 400g
15 oz 425g
1 lb 450g

Converting US cup measures to grams

Many US recipes call for ingredients to be measured in cups. Cups work fine when measuring volume but converting cup measurements to grams is tricky as the equivalent weight depends on the ingredient. For example, a cup of sugar will weigh around 225gm, but a cup of flour may weigh only about 150gm.

Below is a guide to converting some commonly used ingredients from US cup measures to the approximate gram equivalent. However, it’s usually best to follow the recipe by using cup measures. You can buy a set of measuring cups online, in large supermarkets, department stores or kitchenware stores.

US cups Weight in grams
1 cup flour 150g
1 cup caster/granulated sugar 225g
1 cup brown sugar 200g
1 cup icing sugar 125g
1 cup butter/margarine/lard 225g
1 cup sultanas/raisins 200g
1 cup currants 150g
1 cup ground almonds 110g
1 cup uncooked rice 200g
1 cup grated cheese 110g
1 stick butter 113g

Oven temperatures

US recipes usually give oven temperatures in degree Fahrenheit, whereas most UK ovens show temperature in Celsius only. Use the table below to find the UK equivalent. With fan-assisted ovens, remember to reduce the temperature by 20 degrees as shown below.

Description Electric °F Electric °C Electric °C Fan Gas mark
Very cool 225 110 90 1/4
Very cool 250 120 100 1/2
Cool 275 140 120 1
Cool 300 150 130 2
Warm 325 160 140 3
Moderate 350 180 160 4
Moderately hot 375 190 170 5
Fairly hot 400 200 180 6
Hot 425 220 200 7
Very hot 450 230 210 8
Very hot 475 240 220 9

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The opinions expressed are those of the author and are not held by Saga unless specifically stated.

The material is for general information only and does not constitute investment, tax, legal, medical or other form of advice. You should not rely on this information to make (or refrain from making) any decisions. Always obtain independent, professional advice for your own particular situation.