Bruce Wayne celebrates his 30th birthday at the end of Batman Begins, and The Dark Knight takes place about a year after that. So, he's approximately 31 in that film.
(For details regarding this difference and other character age breakdowns, see the first part of this series of articles, if you haven't already). DC tells us (in Frank Miller's “Year One”) that Bruce becomes Batman at age 26 in Year 1.
The series The Batman begins in Batman's third year. In the graphic novel BATMAN: YEAR ONE, by Frank Miller & David Mazzucchelli, Bruce Wayne is 26 years old when he debuts as Batman. If this timeline holds for The Batman then Bruce is 28 or 29 at the beginning of the series.
Bruce's childhood friend, Rachel Dawes, berates him for acting outside the justice system. After confronting Falcone, who says real power comes from being feared, Bruce spends the next seven years traveling the world, training in combat, and immersing himself in the criminal underworld.
In one episode where Bruce has a birthday, the writers said his age in the initial script, but had to take it out because the network would not allow it to be revealed. The producers, however, said off-the-record that Bruce Wayne was about 80.
Fortunately for Batman, nearly every Secret Files or Who's Who profile has had him at six feet, two inches tall. At that size and with Bruce's training, he'd be a problem for most people even without the gadgets. He also weighs in at 210 pounds, which makes him a heavyweight in any athletic competition.
At the age of 14, Bruce leaves Gotham City to explore and obtain skills in martial arts and forensics. Scenes of his early training as a teenager are depicted, including experiences with college, and a disillusioning experience in working with the FBI upon turning 20.
He toured the world as soon as he was able to and learned every martial art possible. He returned ot Gotham at the age of 25 and started then. The first Robin (Dick) came soon after and was 12 when Bruce was 26. He left Batman about 6 years later to become his own hero at 18, making Bruce 32.
Bruce being older than Clark in the DCU makes perfect sense. The new DC Universe will see its Batman debut in The Brave and the Bold, a movie that will introduce audiences — and Bruce himself — to the future Robin Damian Wayne.
In the process, he begins the training that shapes his destiny as a feared vigilante, known as Batman. In Pennyworth, Bruce is revealed to have had an older sister, Samantha, who disappeared long before he was born.
Bruce's blood type is AB-. He helped Kate and Maggie with their wedding and got Wonder Woman to officiate it. He wore pastels to it. A young Bruce Wayne found coal in his stocking one year.
Probably the most physically-suited actor to date to play Batman/Bruce Wayne, Ben Affleck (age 43 when he first portrayed Batman) is the oldest to portray the character.
In most Batman adaptations, Bruce leaves Gotham city at 18 and returns as Batman around the age of 25. This would make Joker over 50 when Bruce returns, which is a little old for a chaos-causing crime boss.
Batman's lack of superhuman abilities makes him especially vulnerable to physical trauma, as his body cannot withstand continuous beatings without severe consequences. Batman's past trauma and lack of emotional healing make him easily manipulated by his enemies, who use his fears and personal losses against him.
Bruce is brought up in Wayne Manor, and leads a happy and privileged existence until the age of eight, when his parents are killed by a small-time criminal named Joe Chill while on their way home from a movie theater. That night, Bruce swears an oath to spend his life fighting crime.
Depending on the interpretation Bruce has trained with a variety of masters in different fields and disciplines including Harvey Harris, Henri Ducard, Master Kirigi and Ra's Al Ghul. Who originally trained Batman, Ra's al Ghul or Henri Ducard? In the comics, Henri Ducard trained Batman.
Most people would know Henri Ducard from the portrayal of him by Liam Neeson in Batman Begins. Henri Ducard was based in Paris, and one of the many notable trainers of Bruce Wayne, in his earliest insurrection of the Caped Crusader.
Bruce Wayne's IQ stands impressively at 192, several notches above Einstein, let alone the average IQ! His intellect is a significant factor that justifies why he is considered such a threat to villains.
Meanwhile, Bruce Wayne has an IQ of 192, somewhat higher than physicist Albert Einstein who rated between 160 and 180. Bruce's fitness is Olympic-level. He began training at 12 years old. By the time he was 18, Wayne had mastered nutrition, training, and weight lifting.
Surprisingly Ben Affleck's Batman was the same height as the comic version and was said to be even taller at 6'-4'', making him the tallest and most physically imposing Batman to date.
