UCL's acceptance rate varies significantly depending on the program. There isn't one single acceptance rate for the entire university. However, generally speaking, UCL is a highly selective university, and its overall acceptance rate is typically
below 15%, often considerably lower for highly competitive programs like medicine, engineering, and certain humanities subjects.
To get a more precise figure, you would need to specify the program you are interested in and look at the university's official website or relevant publications for that specific program's admissions statistics.