how many cups of pasta for 1 jar of sauce?
For tomato-based sauces, a good rule of thumb to follow is to use one jar of 24-ounce pasta sauce for every 16-ounce package of pasta. When calculating how much sauce for pasta per person, generally about 2 to 4 ounces (1/4 to 1/2 cup) of sauce for each 2 ounce (about 1 cup cooked) serving of pasta would be needed.