The question "how many cups are in 1" appears to be incomplete, but commonly it relates to asking "how many cups are in 1 cup," or possibly converting units to or from cups. To clarify:

• 1 cup is obviously equal to 1 cup.
• In US measurement, 1 cup equals 8 fluid ounces or approximately 237 milliliters.
• There are different cup standards: US cup (~237 ml), UK cup (~284 ml), and metric cup (250 ml).
• 1 US cup equals approximately 0.946 metric cups.
• For liquid measures, 1 cup = 8 fluid ounces = 16 tablespoons = 48 teaspoons.

If the question refers to other conversions, please specify. But if it is simply "how many cups in 1 cup," the answer is 1 cup.