In the United States, a pint of milk is equal to 2 cups of milk. The standard measurement for a pint in the US is 16 fluid ounces, and there are 8 fluid ounces in a cup. Therefore, a pint of milk is equivalent to 2 cups. It's worth noting that different countries may have different measurements for a pint, so it's always important to consider the local standards and conversions when dealing with measurements.