1987 + 70 = 2057.
Whatever year you were born in
If you are 70 years old in 2015, you were born in 2015 - 70, which is 1945.
2013-70=1943
You were born in 1947 if you have had your birthday in 2017, or else 1946.
If you were born in 1942, then you turn 70 on your birthday in 2012.
If someone is 70 years old in 2023, they were likely born in 1953. However, if their birthday has not yet occurred this year, they would have been born in 1952.
If you have turned or are turning 70 years old in 2013, then you were born in 1943.
Well, honey, if you're 70 years old, you must have been born in 1952. Simple math, darling. Just subtract 70 from the current year and there you have it. Now go celebrate that wisdom and experience of yours!
1946
You will turn 70 in 2013.
Calculated in 2010 the year of birth was 1940.
Stop being lazy and subtract 70 from 2012