How old was Goku when he fought Buu?

When Goku fought Buu, he was chronologically 34 years old, though he retained the physical appearance and capabilities of a 27-year-old.

Goku's Age During the Buu Saga

Goku's age in Dragon Ball can sometimes be a bit complex due to various factors, including time spent in the afterlife and training in hyperbolic time chambers. When facing Majin Buu, it's important to distinguish between his chronological and physical age.

Chronological vs. Physical Age

• Chronological Age: This refers to the total time that has passed since Goku's birth. By the time of Buu's defeat, Goku's chronological age was 34 years.
• Physical Age: This refers to the age his body physically appears and functions as. Due to his time spent deceased after the Cell Games, his physical aging was paused, leaving him physically equivalent to a 27-year-old during the Buu Saga.

This distinction highlights the unique circumstances of powerful warriors in the Dragon Ball universe, where death and training can significantly impact one's aging process.

Age Breakdown During the Buu Conflict

The following table summarizes Goku's age during the climactic battles against Buu and provides context for his age later on:

As depicted, despite being over three decades old chronologically, Goku's body during the fight with Buu was still in its prime, reflecting his 27-year-old physique. This allowed him to unleash incredible power, including transformations like Super Saiyan 3, in his effort to defeat the formidable Majin Buu.