Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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Engineering ToolBox > Online Noise Rating - NR - Calculator

An online Noise Rating - NR - Calculator

The calculator below can used to calculate the NR - Noise Rating:

Sound Pressure Level (dB) - Octave band mid-frequency (Hz)

31.5 Hz

62.5 Hz

125 Hz

250 Hz

500 Hz

1000 Hz

2000 Hz

4000 Hz

8000 Hz

The NR-diagram with the default values above are indicated below:

nr - noise rating diagram example

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