Conversion guides

Use these guides to help you get the best from your cooking. Remember to stick to either imperial or metric when you're making a recipe - don't mix the two.

Please note that Good Food recipes are tested to work in imperial and metric measures.

Sugar temperature guide

  °C °F
Thread 107 225
Softball 119 238
Firm ball 125 256
Hard ball 138 280
Soft crack 151 304
Hard crack 168 336

Cake tin sizes

As a rule of thumb, a square tin holds about 25% more than a round tin of the same size. If you're using a square tin for a round tin recipe, keep the temperature the same, and turn the cake during baking, as the corners tend to cook faster than the middle.

Approximate conversions

Round tin Square tin
6 inch (15cm) 5 inch (13cm)
8 inch (20cm) 7 inch (18cm)
9 inch (23cm) 8 inch (20cm)
11 inch (28cm) 10 inch (25.5cm)

Oven temperature guide

  Electricity °C Electricity (fan) °C Gas Mark
Very cool 110 90 ¼
  120 100 ½
Cool 140 120 1
  150 130 2
Moderate 160 140 3
  180 160 4
Moderately hot 190 170 5
  200 180 6
Hot 220 200 7
  230 210 8
Very hot 240 220 9

Volume conversion

Weight conversion

Skills & know how

As well as helping you decide what to cook we can also help you to cook it. From tips on cookery techniques to facts and information about health and nutrition, we’ve a wealth of foodie know how for you to explore.

About BBC Good Food

We’re all about good recipes, and about quality home cooking that everyone can enjoy. Whether you’re looking for some healthy inspiration or learning how to cook a decadent dessert, we’ve trustworthy guidance for all your foodie needs.

Our recipes

All our recipes are tested thoroughly by us to make sure they’re suitable for your kitchen at home. We know many of you are concerned about healthy eating, so we send them to a qualified nutritionist for thorough analysis too.

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