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

# Notes, Octaves and Frequencies

## Frequencies vs. notes and octaves.

The notes below are for a tempered chromatic scale where A = 440 Hz.

For full table - rotate the screen!

Notes, Octaves and Frequencies
Frequency (Hz)
listen to the sound! - touch and click the frequency below!
OctaveNote
C C# D Eb E F F# G G# A Bb B
0 16.35 17.32 18.35 19.45 20.60 21.83 23.12 24.50 25.96 27.50 29.14 30.87
1 32.70 34.65 36.71 38.89 41.20 43.65 46.25 49.00 51.91 55.00 58.27 61.74
2 65.41 69.30 73.42 77.78 82.41 87.31 92.50 98.00 103.8 110.0 116.5 123.5
3 130.8 138.6 146.8 155.6 164.8 174.6 185.0 196.0 207.7 220.0 233.1 246.9
4 261.6 277.2 293.7 311.1 329.6 349.2 370.0 392.0 415.3 440.0 466.2 493.9
5 523.3 554.4 587.3 622.3 659.3 698.5 740.0 784.0 830.6 880.0 932.3 987.8
6 1047 1109 1175 1245 1319 1397 1480 1568 1661 1760 1865 1976
7 2093 2217 2349 2489 2637 2794 2960 3136 3322 3520 3729 3951
8 4186 4435 4699 4978 5274 5588 5920 6272 6645 7040 7459 7902

The wavelength depends on the speed of sound and can be calculated as

λ = c / f           (2)

where

λ =  wavelength (m)

cspeed of sound (m/s)

f = frequency (s-1, Hz)

Sound velocity depends on the density of the air and the air temperature. Typical value for speed of sound is 343 m/s for temperature 20oC.

### Guitar Strings

Guitar - Notes, Octaves and Frequencies
NoteOctaveFrequency
(Hz)
E 2 82.41
A 2 110.0
D 3 146.8
G 3 196.0
B 3 246.9
E 4 329.6

## Related Topics

• ### Acoustics

Room acoustics and acoustic properties. decibel A, B and C calculations. Noise Rating (NR) curves. Sound transmission through walls. Calculate sound pressure, sound intensity and sound attenuation.

## Related Documents

• ### Decibel A, B and C

Sound pressure filters that compensates for the hearing sensed by the human ear.
• ### Octave Band Frequencies

The octave and the 1/3 octave band frequencies.
• ### Sound - Doppler Effect

The doppler effect is the change in sound frequency due to the relative motion between a source and a listener.
• ### Sound - Frequency, Wavelength and Octave

An introduction to the nature of sound with frequencies, wave-lengths and octaves.

## Search

Search is the most efficient way to navigate the Engineering ToolBox.

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2003). Notes, Octaves and Frequencies. [online] Available at: https://www.engineeringtoolbox.com/note-frequencies-d_520.html [Accessed Day Month Year].

Modify the access date according your visit.

8.21.8

.