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Weights, Measures & Oven Conversions

It gets so confusing, to me, when reading a recipe and realising it's not UK Cups it's American Cups or they've put a gas mark and you have a fan oven. I have a lot of recipes in ounces and pounds because I'm that old, I like reading antique cookbooks and I have been known to be a bit of a Luddite. So, here's your, and my, go-to for those conversions you may need.

You'll also find a table with weights for eggs. Although we've all been known to substitute a medium sized egg for a large one, if the recipe calls for a large egg, there is a reason for it. the table shows the difference in weights per egg so you can adapt.

Although using cups can be quicker, I recommend weighing ingredients, especially when baking. Something else to remember about cups, American cups and British cups are not the same! Don't get caught out when you're reading recipes online, always check the source.

Oven Temperatures

Fan °C°C°FGas
1401603253
1601803504
1701903755
1802004006
2002204257

Spoons & Liquids

MeasureMetric
1 tsp5ml
1 tbsp15ml
2 tbsp30ml
4 tbsp60ml
8 tbsp120ml

Weights & Measures

GramsOunces
250.9
501.8
1003.5
2508.8
50017.6
100035.3

British Cup Reference (250ml)

MeasureMetric
1 cup250ml
3/4 cup188ml
2/3 cup167ml
1/2 cup125ml
1/3 cup83ml
1/4 cup63ml

British Cups to Grammes – Flours

Ingredient1 Cup1/2 Cup
Plain Flour150g75g
GF Blend175g88g
Rice Flour170g85g
Gram Flour115g58g
Ground Almonds100g50g

British Cups to Grammes – Sugars

Ingredient1 Cup1/2 Cup
Caster Sugar225g113g
Granulated Sugar250g125g
Light Brown Sugar250g125g
Icing Sugar150g75g

British Cups to Grammes Butter, Oils & Dairy

Ingredient1 Cup
Butter250g
Greek Yoghurt250g
Double Cream250ml
Vegetable Oil225ml

American Cups to British Measures

US CupUK EquivalentMetric
1/4 cupjust under 1/4 UK cup60ml
1/3 cupjust under 1/3 UK cup80ml
1/2 cupjust under 1/2 UK cup120ml
1 cup0.96 UK cup240ml

Common Tin Sizes

Round TinMetric
6 inch15cm
7 inch18cm
8 inch20cm
9 inch23cm

UK Egg Sizes

SizeWeight (approx)
Medium53–63g
Large63–73g
Extra Large73g+

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Hi, I'm Zoe

Award-winning distiller and marmalade maker, sharing gluten free recipes including those she creates for Shed One’s afternoon tea. Incorporating locally grown and foraged ingredients.

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