Cooking calculators

Adapt recipes to the number of guests and convert American measures and oven settings.

About these calculators

These kitchen tools scale a recipe to the number of servings, convert American cups into grams and translate oven temperatures between °C, °F and gas marks, so you can cook any recipe from anywhere.

Every tool is free, works on phone and computer, needs no sign-up and runs in your browser: what you type is not sent to a server. Each page explains the formula, gives a worked example and answers common questions.

Some tools in this category: Recipe Scaler: Adjust Servings, Cups to Grams Converter for Baking, Oven Temperature Converter (°C, °F, Gas Mark).

Tips for accurate results

  • Weigh ingredients for baking: it is more accurate than cups.
  • Baking times do not scale like quantities.
  • Lower the temperature by about 20 °C in a fan oven.