What year was I born if I'm 104 years old?

If you are 104 years old, then you were born between1920 - 1921

What Year Was I Born
If I am age what year was I born?

How to calculate birth year from age 104

For calculating the year someone was born base on their age, the formula depends on whether they have already had their birthday this year.

If someone has not yet had their birthday this year, then the formula is

{Current Year} - {Age} - 1 = {Birth Year}

2025 - 104 - 1 = 1920

If someone has had their birthday this year, then the formula is

{Current Year} - {Age} = {Birth Year}

2025 - 104 = 1921

Conversion Table

Age	Birth Year
96 years old	`1928 - 1929`
97 years old	`1927 - 1928`
98 years old	`1926 - 1927`
99 years old	`1925 - 1926`
100 years old	`1924 - 1925`
101 years old	`1923 - 1924`
102 years old	`1922 - 1923`
103 years old	`1921 - 1922`
104 years old	`1920 - 1921`
105 years old	`1919 - 1920`
106 years old	`1918 - 1919`
107 years old	`1917 - 1918`
108 years old	`1916 - 1917`
109 years old	`1915 - 1916`
110 years old	`1914 - 1915`

About "What Year Was I Born" Calculator

This calculator will help you find a person's birth year from their age. For example, it can help you find out what year you were born if you are 104 (the answer is between 1920 - 1921).

Enter an age (e.g. 104) and hit the calculate button. The calculator will then display the results in a user-friendly format.

What Year Was I Born
If I am age what year was I born?

FAQ