Original source : http://gsmtweet.com
Posted : November 2013
Author : Fergie McLachaln
Conversions of liquid measurements are tricky. In the United States, we have numerous ways for measuring liquid, and they don’t match up very easily or very gracefully. For something as simple as measuring liquid, it’s a remarkably complex and obtuse system. On top of that, the rest of the world measures liquid differently, using a metric system, which requires a whole different set of conversions to get to from the American system.
Thankfully, once you get the hang of converting liquid measurements it becomes second nature. And even if you have a difficult time memorizing conversions, there are charts and guides such as this one to help you. Sometimes recipes even explain conversions for you, just to make life easier if you’re trying to figure out measurements for a cooking project. But when in doubt, follow this guide.
We can break conversions into three categories: tablespoons to cups and ounces; cups to ounces, quarts, pints, and gallons; and the metric system, which converts liters and milliliters into American units of measurement.
Tablespoons to Cups and Ounces:
1 Tablespoon = 3 teaspoons
2 Tablespoons = 1 fluid ounce
4 Tablespoons = 1/4 cup, or 2 fluid ounces
5 Tablespoons plus 1 teaspoon = 1/3 cup
8 Tablespoons = 1/2 cup, or 4 fluid ounces
10 Tablespoons plus 2 teaspoons = 2/3 cup, or 5 fluid ounces
12 Tablespoons = 3/4 cup, or 6 fluid ounces
16 Tablespoons = 1 cup, or 8 fluid ounces
Cups to Ounces, Quarts, Pints, and Gallons:
1 cup = 1/2 pint, or 8 fluid ounces
2 cups = 1 pint, or 16 fluid ounces
4 cups = 2 pints, 32 fluid ounces, or 1 quart
16 cups = 8 pints, 128 fluid ounces, or 1 gallon
0.5 milliliters = 1/8 teaspoon
1 milliliter = 1/4 teaspoon
2 milliliters = 1/2 teaspoon
5 milliliters = 1 teaspoon
15 milliliters = 1 Tablespoon
25 milliliters = 2 Tablespoons
50 milliliters = 1/4 cup, or 2 fluid ounces
75 milliliters = 1/3 cup, or 3 fluid ounces
125 milliliters = 1/2 cup, or 4 fluid ounces
150 milliliters = 2/3 cup, or 5 fluid ounces
175 milliliters = 3/4 cup, or 6 fluid ounces
250 milliliters = 1 cup, or 8 fluid ounces
500 milliliters = 2 cups, or 1 pint
1 liter = 4 cups, 2 pints, or 1 quart
As you can see, the metric conversions are not quite as linear as the American ones are. As confusing and convoluted as conversions can be, they’re actually quite fascinating. Of course, water in science is fascinating beyond simply conversions. For instance, when you add salt to water, the boiling point rises and the melting point lowers. The boiling point of plain water is 100 degrees Celsius, or 212 degrees Fahrenheit. Add salt to the water and the boiling point rises 0.5 degrees Celsius for every 29.2 grams of salt per kilogram of water. This is equally true for freezing water as well as boiling and melting it; the freezing point lowers for saltwater.
Water is, of course, one of the most imperative substances in both science and cooking, where it is extremely handy to have an understanding of the conversion systems, both for American measurements and the metric system.