Cricket boundary dimensions are set by the ICC Playing Conditions, which specify minimum and maximum distances measured from the centre of the pitch to the boundary rope. For ODI and T20 cricket, the minimum boundary is 59.43 metres (65 yards) from the centre of the pitch, and the maximum is 82.29 metres (90 yards). Test cricket allows a slightly larger maximum. Critically, the boundary must be at least 59.43 metres from the centre — this is the non-negotiable minimum at all levels.

The 30-yard (27.43m) inner circle is one of the most important field markings in white-ball cricket. During the powerplay overs, fielding restrictions mandate that only a set number of fielders can be placed outside this circle. In ODIs, a maximum of 2 fielders can be outside the circle during overs 1–10 (powerplay). This circle is drawn from the centre of the pitch, not the centre of the ground, which is an important distinction.

Ground conditions mean that most international venues use asymmetric boundaries — one side may be shorter than the other depending on the stadium structure. MCG has a notably large straight boundary, while grounds like Wankhede or Eden Gardens have tighter boundaries due to their oval structure. Regardless of shape, the minimum distance requirement applies at all points around the ground.