Inch dimensions are found on technical components whose dimensions are not defined according to the metric system, but in inches. While only a few countries in the world still use inch measurements for official use, in some areas of technology, measurements in inches are widely used worldwide. This is often due to historical developments.
Examples of the predominant use of imperial dimensions are as follows:
- Screen diagonals
- Pipe threads and fittings
- Frame heights and wheel diameters of bicycles
- Ratchet wrench with square drive
Inch dimensions can be converted to the metric system using a conversion formula and vice versa. However, this may result in rounding errors.
#1 Definition Inch dimension
Inch dimensions define the dimensions of bodies in inches. Inch dimensions are not only common in some countries, but dominate in certain areas of technology worldwide.
#2 Meaning of imperial dimensions
In addition to metrically defined sealing elements, imperial dimensions play an important role in sealing technology. The world’s leading standard for O-rings, ISO 3601, therefore defines dimensions in both length systems.