[Latest] How old is John

Living Person

John_Hopcroft
is

As of April 15, 2026

86 years old
6 months!

Days Until Birthday

174 days

Days Since Birth

31,602 days
elapsed

Date of Birth

(October 7born, 1939 ) is

Sat
Day

Rabbit
Year

* Calculated from Wikipedia data.
Accuracy is not guaranteed.

Cosmic Age Calculator

Moon

1156.7 years old

Mercury

359.2 years old

Venus

140.6 years old

Mars

46 years old

Jupiter

7.3 years old

Saturn

2.9 years old

* Calculated based on each planet's orbital period.

John Edward Hopcroft
Hopcroft in 2006 at ITMO University
Born	(1939-10-07) October 7, 1939 (age 86) Seattle, Washington, U.S.
Education	Seattle University (BS) Stanford University (MS, PhD)
Awards	Turing Award (1986) Member of the National Academy of Sciences Member of the National Academy of Engineering Foreign Member of the Chinese Academy of Sciences Fellow of the American Academy of Arts and Sciences Fellow of the American Association for the Advancement of Science Fellow of the Institute of Electrical and Electronics Engineers Fellow of the Association for Computing Machinery
Scientific career
Fields	Computer science
Institutions	Stanford University Princeton University Cornell University
Thesis	Synthesis of Threshold Logic Networks (1964)
Doctoral advisor	Richard Mattson
Doctoral students	Alfred Aho Chandrajit Bajaj Gilles Brassard Richard J. Cole Cynthia Dwork Zvi Galil Daniela L. Rus Harry B. Hunt, III Balas Natarajan Kausik

Website	cs.cornell.edu/jeh

Wikipedia Categories

American textbook writers

American computer scientists

Turing Award laureates

Seattle University alumni

Cornell University faculty

Stanford University alumni

American electrical engineers

American computer science educators

Fellows of the Association for Computing Machinery

Members of the United States National Academy of Sciences

Members of the United States National Academy of Engineering

Fellows of the Society for Industrial and Applied Mathematics

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