Determining the average ring size for a 15 and 1/2-year-old male can be challenging because ring size can vary significantly among individuals, regardless of age. However, I can provide you with some general guidance.
The average ring size for a male typically ranges from 9 to 10 in the United States. However, it's essential to keep in mind that finger sizes can vary widely based on genetics, weight, and other factors.
To get an accurate ring size for the individual in question, it's best to measure their finger directly using a ring sizer or visit a local jeweler who can help determine the right ring size for them.