The length of time it takes to graduate from cosmetology school part-time varies significantly depending on the school and its program structure. Some programs might take twice as long as a full-time program (e.g., a two-year full-time program could become a four-year part-time program). Others might offer more flexible scheduling that allows for faster completion.
To find out the exact timeframe, you must contact the specific cosmetology schools you are considering. Their admissions offices or program brochures will have the information on part-time program lengths.