The Metric Kitchen





Converting recipes


Recipes















Converting Recipes to Metric Measures

The instructions and tables presented below will walk the reader through converting a recipe to metric measures. It is important to note that these conversions only work with U.S. recipes. Customary measures like cups, pints, quarts, and gallons mean different things in different countries. For example, if you try to convert a British or Australian recipe to metric using these instructions, it may flop.

For the sake of keeping things simple, I have slightly rounded off the measurements stated below. All conversions should be sufficiently accurate for all recipes. For exact conversions, see the Appendices.

Liquids (and Herbs and Spices)

Liquids can be converted to liters or milliliters with the following table. Small volumes (less than about 1 fluid ounce or 2 tablespoons) of ingredients such as salt, herbs, spices, baking powder, etc. should also be converted with this table. Do not use this table to convert other non-liquid ingredients.

Volume Conversions: Normally used for liquids only
Customary quantity Metric equivalent
1 teaspoon 5 mL
1 tablespoon or 1/2 fluid ounce 15 mL
1 fluid ounce or 1/8 cup 30 mL
1/4 cup or 2 fluid ounces 60 mL
1/3 cup 80 mL
1/2 cup or 4 fluid ounces 120 mL
2/3 cup 160 mL
3/4 cup or 6 fluid ounces 180 mL
1 cup or 8 fluid ounces or half a pint 240 mL
1 1/2 cups or 12 fluid ounces 350 mL
2 cups or 1 pint or 16 fluid ounces 475 mL
3 cups or 1 1/2 pints 700 mL
4 cups or 2 pints or 1 quart 950 mL
4 quarts or 1 gallon 3.8 L
Note: In cases where higher precision is not justified, it
may be convenient to round these conversions off as follows:
  1 cup = 250 mL
  1 pint = 500 mL
  1 quart = 1 L
  1 gallon = 4 L

Weight

Weights can be converted with the following table. Note that the ounces referred to in this table are not the same as fluid ounces.

Weight Conversions
Customary quantity Metric equivalent
1 ounce 28 g
4 ounces or 1/4 pound 113 g
1/3 pound 150 g
8 ounces or 1/2 pound 230 g
2/3 pound 300 g
12 ounces or 3/4 pound 340 g
1 pound or 16 ounces 450 g
2 pounds 900 g

Other non-liquid ingredients

Non-liquid ingredients specified in American recipes by volume (if more than about 2 tablespoons or 1 fluid ounce) should be converted to weight with the following table. If you need to convert an ingredient that isn't in this table, the safest thing to do is to measure it with a traditional measuring cup and then weigh the results with a metric scale. In a pinch, you can use the volume conversion table, above.

Weights of common ingredients in grams
Ingredient 1 cup 3/4 cup 2/3 cup 1/2 cup 1/3 cup 1/4 cup 2 Tbsp
Flour, all purpose (wheat) 120 g 90 g 80 g 60 g 40 g 30 g 15 g
Flour, well sifted all purpose (wheat) 110 g 80 g 70 g 55 g 35 g 27 g 13 g
Sugar, granulated cane 200 g 150 g 130 g 100 g 65 g 50 g 25 g
Confectioner's sugar (cane) 100 g 75 g 70 g 50 g 35 g 25 g 13 g
Brown sugar, packed firmly (but not too firmly) 180 g 135 g 120 g 90 g 60 g 45 g 23 g
Corn meal 160 g 120 g 100 g 80 g 50 g 40 g 20 g
Corn starch 120 g 90 g 80 g 60 g 40 g 30 g 15 g
Rice, uncooked 190 g 140 g 125 g 95 g 65 g 48 g 24 g
Macaroni, uncooked 140 g 100 g 90 g 70 g 45 g 35 g 17 g
Couscous, uncooked 180 g 135 g 120 g 90 g 60 g 45 g 22 g
Oats, uncooked quick 90 g 65 g 60 g 45 g 30 g 22 g 11 g
Table salt 300 g 230 g 200 g 150 g 100 g 75 g 40 g
Butter 240 g 180 g 160 g 120 g 80 g 60 g 30 g
Vegetable shortening 190 g 140 g 125 g 95 g 65 g 48 g 24 g
Chopped fruits and vegetables 150 g 110 g 100 g 75 g 50 g 40 g 20 g
Nuts, chopped 150 g 110 g 100 g 75 g 50 g 40 g 20 g
Nuts, ground 120 g 90 g 80 g 60 g 40 g 30 g 15 g
Bread crumbs, fresh, loosely packed 60 g 45 g 40 g 30 g 20 g 15 g 8 g
Bread crumbs, dry 150 g 110 g 100 g 75 g 50 g 40 g 20 g
Parmesan cheese, grated 90 g 65 g 60 g 45 g 30 g 22 g 11 g

Length

Lengths may be converted with the following table. Keep in mind that 1 cm = 10 mm.

Length Conversions
Customary quantity Metric equivalent
1/8 inch 3 mm
1/4 inch 6 mm
1/2 inch 13 mm
3/4 inch 19 mm
1 inch 2.5 cm
2 inches 5 cm
3 inches 7.6 cm
4 inches 10 cm
5 inches 13 cm
6 inches 15 cm
7 inches 18 cm
8 inches 20 cm
9 inches 23 cm
10 inches 25 cm
11 inches 28 cm
12 inches or 1 foot 30 cm

Temperature

The following converter (below) will convert back and forth between °C and °F. Just enter a number in either field, then click outside the text box. Round off the results appropriately.

  °F
  °C

Finishing up

Now that you've converted all measurements to metric, you may want to consult the style guide before sharing or publishing your recipe.


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