When choosing the right size hose and fitting for different applications, you need to convert between NW (nominal diameter) and millimeters (mm). NW is a standardized designation used to indicate the size of hoses and pipes, while millimeters describe the exact internal dimension.

Each NW corresponds to a range of millimeters, which allows components to be connected in a standardized way. For example, NW 10 means an internal diameter of 11–12 mm.

With our converter you can easily enter a NW size and get the exact measurement range in millimeters, or vice versa. This saves you time and ensures you choose the right size for your project.

NW stands for "Nominal Width" and is a standard designation used to specify the size of hoses, pipes and fittings. The table helps you ensure that the correct hose dimension is selected for specific applications, which is crucial to achieving the correct fit and function in systems. It is particularly relevant in industrial, hydraulics and irrigation solutions.

Millimeter (mm) is a unit of length in the metric system, used to measure shorter distances with high precision. A millimeter is equal to one thousandth of a meter (1 mm = 0.001 meter) and is one of the most widely used units in technology, industry, and science.

Millimeters are a standard unit in most of the world and useful for accurate measurements in both professional and everyday applications. Millimeters are used in, among other things:

• Building and construction: For precise material and detail measurements.

• Industry and technology: To specify dimensions of machine parts, components and tools with high precision.

• Science and medicine: Where accurate measurements are crucial, for example in microscopic studies and medical instrument.

• Crafts and Design: For detailed measurements in small-scale projects.
  

The table below shows the relationship between nominal diameter (NW) and the internal dimension of hoses.