Initially, as children, Krillin was stronger than Goku.
During the 21st Tenkaichi Tournament, their power levels were significantly different:
| Character | Power Level |
|---|---|
| Krillin | 169 |
| Goku (initial) | 124 |
| Goku (after training) | 157 |
As shown, Krillin had a power level of 169, while Goku's initial level was 124. While Goku trained alongside Krillin and increased his power level to 157, Krillin still maintained a higher power level during that specific point in time, which demonstrates Krillin being stronger than Goku.
It is important to acknowledge that this power difference is not a constant throughout the series. Goku significantly surpassed Krillin's power levels later in the Dragon Ball story.
