A 2021 study measuring Pringles crisps reported an average major diameter of 54.20 ± 1.00 mm, minor diameter of 41.40 ± 0.70 mm, and height of 12.16 ± 0.60 mm for its sample. That is approximately 2.13 × 1.63 inches, with a curved profile about 0.48 inch high.
These figures describe the study sample, not a guaranteed specification for every flavor, package or production run. The height is the measured curved profile between plates, not the crisp’s thickness at its thinnest point. For package dimensions, see our Pringles can dimensions example.