Calculate Weights and Measures or Use a Conversion Chart

Flour in Cup and Tablespoon
Diana Rattray

Cooking can be challenging especially when the language is not the same. The recipe may be in English, but if you are an American reading a recipe from Canada, the measurements may be in milliliters and the recipe might ask for you to set your oven to 200 C. There is a big difference between 200 C and 200 F. 

You can quite simply figure out the conversions on your own if you have a calculator. Or, you can Google it.

Learn how you can make conversions between American standards for measurements, compared to the metric system and imperial measures (U.K.). You too can find out the equivalents between ounces and grams and milliliters, cups to milliliters and ounces, and Celsius to Fahrenheit.

Precise Conversion Calculator

Use this chart—along with your calculator—to precisely convert from the U.S. and imperial to metric measurements. This will give you precise figures. To convert from metric to U.S. and imperial, work from right to left and replace the "multiply by" with "divide by."


Multiply By

To Determine

Fluid Ounces29.57Milliliters

Measure Equivalents

These conversions are not as precise as if you used the conversion calculator, but these measurements are rounded and fairly accurate.

These equivalents are sufficient when you use them in cooking.

Liquid Measurement Conversions

1 cup8 fluid ounces1/2 pint237 ml
2 cups16 fluid ounces1 pint474 ml
4 cups32 fluid ounces1 quart946 ml
2 pints32 fluid ounces1 quart946 ml
4 quarts128 fluid ounces1 gallon3.784 liters
8 quartsone peck  
4 pecksone bushel  
dashless than 1/4 teaspoon  


Dry Measurement Conversions

3 teaspoons1 tablespoon1/2 ounce14.3 grams 
2 tablespoons1/8 cup1 fluid ounce28.3 grams 
4 tablespoons1/4 cup2 fluid ounces56.7 grams 
5 1/3 tablespoons1/3 cup2.6 fluid ounces75.6 grams 
8 tablespoons1/2 cup4 ounces113.4 grams1 stick butter
12 tablespoons3/4 cup6 ounces.375 pound170 grams
32 tablespoons2 cups16 ounces1 pound453.6 grams
64 tablespoons4 cups32 ounces2 pounds907 grams

Temperature Conversions

To convert Fahrenheit to Celsius, subtract 32, multiply by 5, and then divide by 9. To convert Celsius to Fahrenheit, multiply by 9, divide by 5, and then add 32. See the table below for some common temperature equivalents used in cooking and food storage.

Temperature Conversions

DescriptionFahrenheitCelsiusGas Mark
Freezer Storage 0 F-18 C 
Water Freezes32 F0 C  
Refrigerator Storage 40 F4 C 
Room Temperature68 F to 72 F20 C to 22 C 
Lukewarm Water95 F35 C 
Poach Temperature160 F to 180 F70 C to 82 C 
Simmer Temperature185 F to 205 F85 C to 95 C 
Boil Temperature212 F100 C 
Very Cool Oven225 F110 C1/4
Cool Oven250 F120 C1/2
Very Slow Oven275 F140 C1
Slow Oven300  F150 C2
Low Oven325 F160 C3
Moderate Oven350 F180 C4
Moderately Hot Oven375 F190 C5
Hot Oven400 F to 425 F200 C to 220 C6 to 7
Very Hot Oven450 F to 475 F230 C to 240 C8 to 9
Extremely Hot Oven500 F260 C9+

There's a Difference Between Liquid and Dry Ounces

Fluid ounces marked on the outside of the liquid measuring cups are not necessarily the same as weighted ounces. Fluid ounces are a measurement of volume while ounces can also be a measure of weight.

To measure liquids, you should always use liquid measuring cups and spoons. Liquid measuring cups are usually glass or plastic, and most have a spout for pouring. Dry measuring cups may not be as accurate and could make a difference in the outcome of a recipe, especially when baking.