Converting Cups to Grams

Some handy charts to help convert US style measurements to actual weights.

http://allrecipes.com/HowTo/Converting-Cups-to-Grams/detail.aspx

Also:

One teaspoon equals about 5 milliliters.
One tablespoon equals about 15 milliliters.
One fluid ounce equals about 30 milliliters (29.573 ml).
One cup equals about 240 milliliters (236.584 ml).
One quart equals about 1 liter (0.94635 L).
One gallon equals about 4 liters (3.7854 L).