qwertimusI have had this exact rice cooker for 12 years, still going strong. The smallest marking inside the bowl is for 1 "cup" but this is the rice cup that comes with it so the actual amount of rice is 3/4 cup as all rice cooker cups are 3/4 cups when measured with a real measuring cup. I think you could go less but you would have to guess more on the correct amount of water to match the rice as there are no markings below 1 cup.