I commonly list my ingredients in both volume (cups, teaspoons, tablespoons) and weights (grams). While weighs and volume are not interchangeable, you can find out how many teaspoons are in a tablespoon and how many tablespoons are in one cup.
You can also calculate between grams, ounces, and pounds! Helpful, eh?
If you wonder what the big fuss is over using weight instead of volume measurements when cooking and baking, here is a great explanation from Joy of Baking as to why weight is generally preferable!