Cook calculators

Cooking and baking tools — scale recipes and convert between units and oven scales.

Recipe scaler

Scale a recipe to a different number of servings.

Serving-size calculator

How much each serving gets from a total amount.

Cups to grams (and grams to cups)

Convert cups to grams or grams to cups for common baking ingredients.

Tablespoons/teaspoons converter

Convert between tablespoons and teaspoons.

Oven temperature & gas mark converter

Convert °C to °F with the fan equivalent, or a gas mark to °C and °F.

Cake tin & baking pan size converter

Swap round, square and rectangular tins, and scale a recipe for a different tin.

Exact conversions and ingredient-dependent ones

Some kitchen conversions are exact: grams to ounces, millilitres to cups, tablespoons to teaspoons, and Celsius to Fahrenheit are fixed mathematical relationships. The oven temperature and ounces to grams converters fall into this group.

Converting a volume such as a cup into a weight in grams is different: it depends on the ingredient. A cup of flour weighs far less than a cup of sugar. The cups to grams by ingredient converter uses a typical density for each ingredient, and how you fill the cup (sifted, spooned or packed) still changes the real weight.

Cup sizes differ

US, UK/metric and other cup measures are not identical. Check which a recipe was written for before converting.

Fan ovens

Fan (convection) ovens usually need a lower temperature than conventional ovens for the same result. The oven temperature converter shows the usual 20°C fan reduction alongside the Fahrenheit figure; your oven manual may recommend a slightly different adjustment.

To change the number of servings, use the recipe scaler; to adapt to a different tin, use the cake tin & baking pan size converter.