Calculate the difference between two dates and get the value in years? [duplicate]

Answer 1

Subtracting two DateTime gives you a TimeSpan back. Unfortunately, the largest unit it gives you back is Days.

While not exact, you can estimate it, like this:

int days = (DateTime.Today - DOB).Days;

//assume 365.25 days per year
decimal years = days / 365.25m;

Edit: Whoops, TotalDays is a double, Days is an int.