Apps
Noise Rating
The calculator below can used to calculate the NR - Noise Rating.
Sound Pressure Level (dB) - Octave band mid-frequency (Hz)
Powered by
engineeringtoolbox.com
tools, information and data
No installation required!!
Just visit the App in your browser, and - if you want - bookmark the App in your iPhone, iPad or Android browser - or
Home Screen
Apps you have visited are saved on newer devices and works
offline!
Apps also works offline in newer desktop browsers!
QR Code
Privacy
We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.
Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.
Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.
AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.
10 27