Cookbook:Units of measurement

Cookbook | Lists

Recipes from different parts of the world use different units of measurement. This page is a guide to those that are most commonly used in cooking.

List of Units

Volume

Mass and Weight

Length

Temperature

See the oven temperature table.

Metric Units

Metric units are made up of a base unit and a scale modifier. Each type of measurement has its own base unit. The modifiers are shared between all units. The relevant base units for cooking are:

Commonly used prefix modifiers are:

In cooking the old unit Liter (l) is commonly used to measure volume. One liter is (exactly) equal to 0.001 cubic meters, or 1 cubic decimeter, written like: 1 l = 1 dm3. The prefix modifiers can be used with any unit and thus 1 cl (centiliter) is equal to 1/100 of a liter. The unit for volume is derived from the unit for length. Two lengths forms an area, which is length x length and has the derived unit square meter (m2). Three lengths forms the volume metric m3. This has the consequence that a m3 is equal to 1000 dm3, that is 103 = 10x10x10.

Examples relevant for cooking:

Some recipes in Wikibooks Cookbook use American measurement units (pounds and ounces, Fahrenheit, fluid ounces and pints, etc.) and some recipes use metric units (grammes and kilograms, Celsius, milliliter, etc.). An attempt to ensure that all Cookbook recipes use metric units (alone or alongside American units) is an ongoing job. A list of recipes which have been confirmed as having metric units can be found here.

Avoirdupois Conversion Reference

Volume

American units

Mass

Mass/Volume conversions

Approximate conversions based on water density. These conversions are useful for more than just water. Although other things have different densities, they are good enough for most estimates.

Water has a density of exactly 1 g/cm³

An American stick of butter is 1/4 lb, and is divided into 8 tablespoons. So, 1 tbsp butter = 1/2 oz butter.

Kitchen measures around the world

Swedish measuring spoons

Sweden

Sweden uses the following standard set of volume measures in recipes. (In the picture, from left to right, deciliter, tablespoon, teaspoon and milliliter.) All are metric, with the tablespoon defined as exactly 15 ml and the teaspoon as exactly 5 ml.

See also

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