1 muffin = 1/4 cup of batter 2 muffin = 2/4 cup of batter (or 1/2) 3 muffin = 3/4 cup of batter 4 muffins = 4/4 cup of batter (or 1 cup) 5 muffins = 5/4 cups of batter (or 1 and 1/4 cups) 6 muffins = 6/4 (or 1 and 2/4 cups) (or 1 and 1/2 cups) and it keeps going hope it helps!