Noise Rating (NR) - Free Online 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 from above: