Kristen M. Oaks has not publicly shared a full birthdate, but available church and news sources say she was single until age 53 when she married President Dallin H. Oaks in August 2000. That implies she was born around 1946–1947, which would make her about 79 or 80 years old as of early 2026.

Because her exact birthdate is not listed in official biographical sources, any specific age (down to the exact year and day) would be an estimate rather than a confirmed figure.