Determining the specific age of the character Android 21 presents a unique challenge. Her existence as a modified human infused with the cells of various powerful warriors complicates any direct calculation based on chronological years. The characters initial human form, prior to Dr. Geros modifications, is a crucial point of reference, but details about that period are scarce.
Understanding the character’s origins within the Dragon Ball universe provides context. Dr. Gero’s research and the creation of Androids were motivated by revenge against Goku. The introduction of Majin Buu cells into Android 21s composition further distorts the timeline, as those cells possess regenerative and transformative properties. The blend of human, Android, and Majin elements effectively makes pinpointing a definitive age impossible using conventional methods.