How old am I if I was born in 1983?
Born in 1983, you turn 43 in 2026: you are 43 once your birthday has passed this year, and 42 before it.
- Age in years
- 42 or 43
Born in 1983, on September 29, 2026 the age is 42 or 43: 43 if the birthday in 2026 has come, 42 if not.
- From the birthday on
- 43
- Before the birthday
- 42
- Which one
- 43 if the birthday in 2026 has come, 42 if not
Answer for the example date Tuesday, September 29, 2026. It changes to today's date when the page loads.
Age in years: 42 or 43. Born in 1983, on September 29, 2026 the age is 42 or 43: 43 if the birthday in 2026 has come, 42 if not.
How to calculate
Works out the age today, or on any date, of someone born in 1983: one number after their birthday, one less before it.
Example with the default inputs (Year you were born 1983, Age on September 29, 2026) on the example date Tuesday, September 29, 2026: Born in 1983, on September 29, 2026 the age is 42 or 43: 43 if the birthday in 2026 has come, 42 if not.
Method: Age = year of the date − birth year, once the birthday in that year has come; one less before it.
- Age counts completed years, as in everyday use: you turn 1 on your first birthday.
- Without the month and day of birth, the age on most dates is one of two numbers; on the date’s year the birthday decides which.
- Only the year is known, so in the birth year itself the age shows as 0 even on a date before the birth.
- Someone born on February 29 has a birthday on February 28 or March 1 in other years; either way, the year difference is the same.
Worked examples
Each example is checked against the calculator on every build.
- Year you were born 1983, Age on 2026-09-28 gives From the birthday on 43, Before the birthday 42, Age in years 42 or 43.Source: hand calculation: 2026 − 1983 = 43 after the 2026 birthday, one less before it
- Year you were born 1983, Age on 2030-01-01 gives From the birthday on 47, Before the birthday 46.Source: hand calculation: 2030 − 1983 = 47; on January 1 only a January 1 birthday has come
- Year you were born 1983, Age on 1983-12-31 gives From the birthday on 0, Age in years 0.Source: hand calculation: 1983 − 1983 = 0
Other questions people ask
How old is someone born in 1983 in 2026?
42 or 43. 2026 − 1983 = 43, which is the age from the birthday in 2026 on; before that birthday it is 42. This page was built on Tuesday, September 29, 2026; the calculator above uses today’s date.
How old will I be in 2027 if I was born in 1983?
44 after your birthday in 2027, and 43 before it.
What year do I turn 18 if I was born in 1983?
2001, on your birthday. You turn 21 in 2004, 30 in 2013, 50 in 2033, and 65 in 2048.
How do I find my exact age?
Use the DOB calculator: from your full date of birth it gives your age in years, months, and days, the total days, and your next birthday.