[Latest] How old is Jon

Living Person

Jon_Foster
is

As of April 17, 2026

41 years old
8 months!

Days Until Birthday

107 days

Days Since Birth

15,232 days
elapsed

Date of Birth

(August 3born, 1984 ) is

Fri
Day

Rat
Year

* Calculated from Wikipedia data.
Accuracy is not guaranteed.

Cosmic Age Calculator

Moon

557.5 years old

Mercury

173.1 years old

Venus

67.8 years old

Mars

22.2 years old

Jupiter

3.5 years old

Saturn

1.4 years old

* Calculated based on each planet's orbital period.

Jon Foster
Foster in October 2009
Born	(1984-08-03) August 3, 1984 (age 41) Boston, Massachusetts, U.S.
Occupations	Actor, musician
Years active	1999–present
Spouse	Chelsea Tyler (m. 2015)
Children	2
Relatives	Ben Foster (brother) Laura Prepon (ex-sister-in-law) Liv Tyler (sister-in-law) Mia Tyler (sister-in-law) Steven Tyler (father-in-law)

Wikipedia Categories

American male film actors

Jewish American male actors

American male television actors

People from Fairfield, Iowa

American people of Russian-Jewish descent

Musicians from Iowa

Male actors from Iowa

Musicians from Boston

Male actors from Boston

Use American English from March 2026

Look up "Jon_Foster" on Wikipedia