Question: how many cups of water do you need for 3 cups of rice?
Answer: As a general rule of thumb, use the accepted ratio of 1 cup of water per 1 cup of dry rice. Therefore, for 3 cups of rice, you would add 3 cups of water, if your cooker can hold that much. The rice-to-water ratio is tricky, though, because some rice cookers cook more quickly than others.