Question: 1 can of tomato sauce is how many cups?
Answer: Canned Tomatoes: 1 (28-ounce) can = 3 cups undrained = 2 to 2 1/2 cups drained tomatoes. 1 (35-ounce) can = 4 cups undrained = 2 1/2 to 3 cups drained tomatoes. 1 (6-ounce) can tomato paste = 1/4 cup.