How old are you if you graduated in and how old are you in 2017?

To determine your age in 2017 based on your graduation year, you need to know the year you graduated. Typically, if you graduated from high school at around age 18, you can add 18 to your graduation year to estimate your birth year. From there, subtract your birth year from 2017 to find your age in that year. For example, if you graduated in 2015, you would be around 20 years old in 2017.