Unit Definition (cape inch)
The cape inch is another traditional South African unit for distance. There are 12 cape inches in a cape foot. The Cape foot equals 12.396 English inches, 1.0330 English foot, or 31.4858 centimeters.

Unit Definition (zoll [Switzerland])
In Switzerland, it is now considered a metric unit equal to exactly 3 centimeters (1.1811 inches). There's no change in the plural.