Find your exact age in years, months, days, hours and minutes.
Age is computed by subtracting the year, month, and day components separately and borrowing when needed — the same way you'd work it out on paper. This correctly accounts for different month lengths and leap years.
Age = calendar difference between date of birth and reference date, computed by subtracting year/month/day components and borrowing from the next-larger component when the end value is smaller than the birth value.
That gives an approximation. Proper age uses calendar components so that, for example, someone born on Feb 29 or at month boundaries gets an exact, correct age.
Yes — enter any date in the 'Age at Date' field to see how old you'll be (or were) on that day.