Find out what year you were born in seconds — just type your age and let our calculator do the math!
What year was I born?
How to Use Our What Year Was I Born Calculator
- Enter your age (e.g., 20, 33, 47)
- Check or uncheck “I’ve already had my birthday this year”
- Click Calculate
- Instantly view your birth year, plus a clear explanation
- Use the copy button if you want to save or share the result
It takes less than three seconds.
How the Birth Year Calculation Works
The formula is actually simple:
If you have already had your birthday this year:
Birth Year = Current Year – Age
If you have NOT had your birthday yet this year:
Birth Year = (Current Year – Age) – 1
Related:
FAQs
Q: What year was I born if I’m 10 years?
If you have already had your birthday this year: 2015.
If you haven’t had your birthday yet this year: 2014.
Q: What year was I born if I’m 11 years?
Birthday passed: 2014.
Birthday not passed: 2013.
Q: What year was I born if I’m 13 years?
Birthday passed: 2012.
Birthday not passed: 2011.
Q: What year was I born if I’m 14 years?
Birthday passed: 2011.
Birthday not passed: 2010.
Q: What year was I born if I’m 15 years?
Birthday passed: 2010.
Birthday not passed: 2009.
Q: What year was I born if I’m 16 years?
Birthday passed: 2009.
Birthday not passed: 2008.
Q: What year was I born if I’m 17 years?
Birthday passed: 2008.
Birthday not passed: 2007.
Q: What year was I born if I’m 18 years?
Birthday passed: 2007.
Birthday not passed: 2006.
Q: What year was I born if I’m 21 years?
Birthday passed: 2004.
Birthday not passed: 2003.
Q: What year was I born if I’m 22 years?
Birthday passed: 2003.
Birthday not passed: 2002.
Q: What year was I born if I’m 23 years?
Birthday passed: 2002.
Birthday not passed: 2001.
Q: What year was I born if I’m 24 years?
Birthday passed: 2001.
Birthday not passed: 2000.
Q: What year was I born if I’m 25 years?
Birthday passed: 2000.
Birthday not passed: 1999.
Q: What year was I born if I’m 26 years?
Birthday passed: 1999.
Birthday not passed: 1998.
Q: What year was I born if I’m 27 years?
Birthday passed: 1998.
Birthday not passed: 1997.
Q: What year was I born if I’m 28 years?
Birthday passed: 1997.
Birthday not passed: 1996.
Q: What year was I born if I’m 30 years?
Birthday passed: 1995.
Birthday not passed: 1994.
Q: What year was I born if I’m 31 years?
Birthday passed: 1994.
Birthday not passed: 1993.
Q: What year was I born if I’m 32 years?
A: Birthday passed: 1993.
Birthday not passed: 1992.
Q: What year was I born if I’m 33 years?
Birthday passed: 1992.
Birthday not passed: 1991.
Q: What year was I born if I’m 34 years?
Birthday passed: 1991.
Birthday not passed: 1990.
Q: What year was I born if I’m 35 years?
Birthday passed: 1990.
Birthday not passed: 1989.
Q: What year was I born if I’m 36 years?
Birthday passed: 1989.
Birthday not passed: 1988.
Q: What year was I born if I’m 37 years?
Birthday passed: 1988.
Birthday not passed: 1987.
Q: What year was I born if I’m 38 years?
Birthday passed: 1987.
Birthday not passed: 1986.
Q: What year was I born if I’m 39 years?
Birthday passed: 1986.
Birthday not passed: 1985.
Q: What year was I born if I’m 40 years?
Birthday passed: 1985.
Birthday not passed: 1984.
Q: What year was I born if I’m 41 years?
Birthday passed: 1984.
Birthday not passed: 1983.
Q: What year was I born if I’m 42 years?
Birthday passed: 1983.
Birthday not passed: 1982.
Q: What year was I born if I’m 43 years?
Birthday passed: 1982.
Birthday not passed: 1981.
Q: What year was I born if I’m 44 years?
Birthday passed: 1981.
Birthday not passed: 1980.
Q: What year was I born if I’m 45 years?
Birthday passed: 1980.
Birthday not passed: 1979.
Q: What year was I born if I’m 46 years?
Birthday passed: 1979.
Birthday not passed: 1978.
Q: What year was I born if I’m 47 years?
Birthday passed: 1978.
Birthday not passed: 1977.
Q: What year was I born if I’m 48 years?
Birthday passed: 1977.
Birthday not passed: 1976.
Q: What year was I born if I’m 49 years?
Birthday passed: 1976.
Birthday not passed: 1975.
Q: What year was I born if I’m 50 years?
Birthday passed: 1975.
Birthday not passed: 1974.
Q: What year was I born if I’m 51 years?
Birthday passed: 1974.
Birthday not passed: 1973.
Q: What year was I born if I’m 52 years?
Birthday passed: 1973.
Birthday not passed: 1972.
Q: What year was I born if I’m 53 years?
Birthday passed: 1972.
Birthday not passed: 1971.
Q: What year was I born if I’m 54 years?
Birthday passed: 1971.
Birthday not passed: 1970.
Q: What year was I born if I’m 55 years?
Birthday passed: 1970.
Birthday not passed: 1969.
Q: What year was I born if I’m 56 years?
Birthday passed: 1969.
Birthday not passed: 1968.
Q: What year was I born if I’m 57 years?
Birthday passed: 1968.
Birthday not passed: 1967.
Q: What year was I born if I’m 58 years?
Birthday passed: 1967.
Birthday not passed: 1966.
Q: What year was I born if I’m 59 years?
Birthday passed: 1966.
Birthday not passed: 1965.
Q: What year was I born if I’m 60 years?
Birthday passed: 1965.
Birthday not passed: 1964.
Q: What year was I born if I’m 61 years?
Birthday passed: 1964.
Birthday not passed: 1963.
Q: What year was I born if I’m 62 years?
Birthday passed: 1963.
Birthday not passed: 1962.
Q: What year was I born if I’m 63 years?
Birthday passed: 1962.
Birthday not passed: 1961.
Q: What year was I born if I’m 64 years?
Birthday passed: 1961.
Birthday not passed: 1960.
Q: What year was I born if I’m 65 years?
Birthday passed: 1960.
Birthday not passed: 1959.
Q: What year was I born if I’m 66 years?
Birthday passed: 1959.
Birthday not passed: 1958.
Q: What year was I born if I’m 67 years?
Birthday passed: 1958.
Birthday not passed: 1957.
Q: What year was I born if I’m 68 years?
Birthday passed: 1957.
Birthday not passed: 1956.
Q: What year was I born if I’m 69 years?
Birthday passed: 1956.
Birthday not passed: 1955.
Q: What year was I born if I’m 70 years?
Birthday passed: 1955.
Birthday not passed: 1954.
Q: What year was I born if I’m 71 years?
Birthday passed: 1954.
Birthday not passed: 1953.
Q: What year was I born if I’m 72 years?
Birthday passed: 1953.
Birthday not passed: 1952.
Q: What year was I born if I’m 73 years?
Birthday passed: 1952.
Birthday not passed: 1951.
Q: What year was I born if I’m 74 years?
Birthday passed: 1951.
Birthday not passed: 1950.
Q: What year was I born if I’m 75 years?
Birthday passed: 1950.
Birthday not passed: 1949.
Q: What year was I born if I’m 76 years?
Birthday passed: 1949.
Birthday not passed: 1948.
Q: What year was I born if I’m 77 years?
Birthday passed: 1948.
Birthday not passed: 1947.
Q: What year was I born if I’m 78 years?
Birthday passed: 1947.
Birthday not passed: 1946.
Q: What year was I born if I’m 79 years?
Birthday passed: 1946.
Birthday not passed: 1945.
Q: What year was I born if I’m 80 years?
Birthday passed: 1945.
Birthday not passed: 1944.
Q: What year was I born if I’m 81 years?
Birthday passed: 1944.
Birthday not passed: 1943.
Q: What year was I born if I’m 82 years?
Birthday passed: 1943.
Birthday not passed: 1942.
Q: What year was I born if I’m 83 years?
Birthday passed: 1942.
Birthday not passed: 1941.
Q: What year was I born if I’m 84 years?
Birthday passed: 1941.
Birthday not passed: 1940.
Q: What year was I born if I’m 85 years?
Birthday passed: 1940.
Birthday not passed: 1939.
Q: What year was I born if I’m 86 years?
Birthday passed: 1939.
Birthday not passed: 1938.
Q: What year was I born if I’m 87 years?
Birthday passed: 1938.
Birthday not passed: 1937.
Q: What year was I born if I’m 88 years?
Birthday passed: 1937.
Birthday not passed: 1936.
Q: What year was I born if I’m 89 years?
Birthday passed: 1936.
Birthday not passed: 1935.
Q: What year was I born if I’m 90 years?
Birthday passed: 1935.
Birthday not passed: 1934.
Q: What year was I born if I’m 91 years?
Birthday passed: 1934.
Birthday not passed: 1933.
Q: What year was I born if I’m 92 years?
Birthday passed: 1933.
Birthday not passed: 1932.
Q: What year was I born if I’m 93 years?
Birthday passed: 1932.
Birthday not passed: 1931.
Q: What year was I born if I’m 94 years?
Birthday passed: 1931.
Birthday not passed: 1930.
Q: What year was I born if I’m 95 years?
Birthday passed: 1930.
Birthday not passed: 1929.
Q: What year was I born if I’m 96 years?
Birthday passed: 1929.
Birthday not passed: 1928.
Q: What year was I born if I’m 97 years?
Birthday passed: 1928.
Birthday not passed: 1927.
Q: What year was I born if I’m 98 years?
Birthday passed: 1927.
Birthday not passed: 1926.
Q: What year was I born if I’m 99 years?
Birthday passed: 1926.
Birthday not passed: 1925.
Q: What year was I born if I’m 100 years?
Birthday passed: 1925.
Birthday not passed: 1924.
Q: What year was I born if I’m 101 years?
Birthday passed: 1924.
Birthday not passed: 1923.
Q: What year was I born if I’m 102 years?
Birthday passed: 1923.
Birthday not passed: 1922.
Q: What year was I born if I’m 103 years?
Birthday passed: 1922.
Birthday not passed: 1921.
Q: What year was I born if I’m 104 years?
Birthday passed: 1921.
Birthday not passed: 1920.
Q: What year was I born if I’m 105 years?
Birthday passed: 1920.
Birthday not passed: 1919.
Q: What year was I born if I’m 106 years?
Birthday passed: 1919.
Birthday not passed: 1918.
Q: What year was I born if I’m 107 years?
Birthday passed: 1918.
Birthday not passed: 1917.
Q: What year was I born if I’m 108 years?
Birthday passed: 1917.
Birthday not passed: 1916.
Q: What year was I born if I’m 109 years?
Birthday passed: 1916.
Birthday not passed: 1915.
Q: What year was I born if I’m 110 years?
Birthday passed: 1915.
Birthday not passed: 1914.
Q: What year was I born if I’m 111 years?
Birthday passed: 1914.
Birthday not passed: 1913.
Q: What year was I born if I’m 112 years?
Birthday passed: 1913.
Birthday not passed: 1912.
Q: What year was I born if I’m 113 years?
Birthday passed: 1912.
Birthday not passed: 1911.
Q: What year was I born if I’m 114 years?
Birthday passed: 1911.
Birthday not passed: 1910.
Q: What year was I born if I’m 115 years?
Birthday passed: 1910.
Birthday not passed: 1909.
Q: What year was I born if I’m 116 years?
Birthday passed: 1909.
Birthday not passed: 1908.
Q: What year was I born if I’m 117 years?
Birthday passed: 1908.
Birthday not passed: 1907.
Q: What year was I born if I’m 118 years?
Birthday passed: 1907.
Birthday not passed: 1906.
Q: What year was I born if I’m 119 years?
Birthday passed: 1906.
Birthday not passed: 1905.
Q: What year was I born if I’m 120 years?
Birthday passed: 1905.
Birthday not passed: 1904.
Q: What year was I born if I’m 121 years?
Birthday passed: 1904.
Birthday not passed: 1903.
Q: What year was I born if I’m 122 years?
Birthday passed: 1903.
Birthday not passed: 1902.
Q: What year was I born if I’m 123 years?
Birthday passed: 1902.
Birthday not passed: 1901.
Q: What year was I born if I’m 124 years?
A: Birthday passed: 1901.
Birthday not passed: 1900.
Q: What year was I born if I’m 125 years?
Birthday passed: 1900.
Birthday not passed: 1899.
Q: What year was I born if I’m 126 years?
A: Birthday passed: 1899.
Birthday not passed: 1898.
Q: What year was I born if I’m 127 years?
Birthday passed: 1898.
Birthday not passed: 1897.
Q: What year was I born if I’m 128 years?
Birthday passed: 1897.
Birthday not passed: 1896.
Q: What year was I born if I’m 129 years?
Birthday passed: 1896.
Birthday not passed: 1895.
Q: What year was I born if I’m 130 years?
Birthday passed: 1895.
Birthday not passed: 1894.
Q: What year was I born if I’m 131 years?
Birthday passed: 1894.
Birthday not passed: 1893.
Q: What year was I born if I’m 132 years?
Birthday passed: 1893.
Birthday not passed: 1892.
Q: What year was I born if I’m 133 years?
Birthday passed: 1892.
Birthday not passed: 1891.
Q: What year was I born if I’m 134 years?
Birthday passed: 1891.
Birthday not passed: 1890.
Q: What year was I born if I’m 135 years?
Birthday passed: 1890.
Birthday not passed: 1889.
Q: What year was I born if I’m 136 years?
Birthday passed: 1889.
Birthday not passed: 1888.
Q: What year was I born if I’m 137 years?
Birthday passed: 1888.
Birthday not passed: 1887.
Q: What year was I born if I’m 139 years?
Birthday passed: 1886.
Birthday not passed: 1885.
Q: What year was I born if I’m 138 years?
Birthday passed: 1887.
Birthday not passed: 1886.
Q: What year was I born if I’m 140 years?
Birthday passed: 1885.
Birthday not passed: 1884.