Barry's Handy Frequency-To-Wavelength-To-Period Chart V 3.11 at   www.soundoctor.com/freq.htm
 
SEMITONE > 0 1 2 3 4 5 6 7 8 9 10 11 12
NOTE > A Bb B C Db D Eb E F F# G Ab A
FREQ. 14080 14917 15804 16744 17739 18794 19912 21096 22350 23679 25087 26579 28159
INCH 0.96 0.91 0.86 0.81 0.76 0.72 0.68 0.64 0.61 0.57 0.54 0.51 0.48
PERIOD 71 usec 67 usec 66.3 usec 59.7 usec 56.3 usec 53.2 usec 50.2 usec 47.4 usec 44.7 usec 42.2 usec

39.9 usec

37.6 usec 35.5 usec
                           
FREQ. 7040 7459 7902 8372 8870 9397 9956 10548 11175 11840 12544 13290 14080
INCH 1.93 1.82 1.72 1.62 1.53 1.44 1.36 1.29 1.21 1.15 1.08 1.02 0.96
PERIOD 142 usec 134 usec 126 usec 119 usec 113 usec 106 usec 100 usec 94.8 usec 89.4 usec 84.5 usec 79.7 usec 75.2 usec 71 usec
                           
FREQ. 3520 3729 3951 4186 (C8) 4435 4699 4978 5274 5588 5920 6272 6645 7040
INCH 3.85 3.64 3.43 3.24 3.06 2.89 2.72 2.57 2.43 2.29 2.16 2.04 1.93
PERIOD 284 usec 268 usec 253 usec 239 usec 225 usec 213 usec 201 usec 190 usec 179 usec 169 usec 159 usec 150 usec 142 usec
                           
FREQ. 1760 1865 1976 2093 C7) 2217 2349 2489 2637 2794 2960 3136 3322 3520
INCH 7.70 7.27 6.86 6.48 6.12 5.77 5.45 5.14 4.85 4.58 4.32 4.08 3.85
FEET 0.64 0.61 0.57 0.54 0.51 0.48 0.45 0.43 0.40 0.38 0.36 0.34 0.32
PERIOD 568 usec 536 usec 506 usec 477 usec 451 usec 426 usec 402 usec 379 usec

358 usec

338 usec 319 usec 301 usec 284 usec
                           
FREQ. 880 932 988 1047 (C6) 1109 1175 1245 1319 1397 1480 1568 1661 1760
INCH 15.41 14.54 13.73 12.96 12.23 11.54 10.90 10.28 9.71 9.16 8.65 8.16 7.70
FEET 1.28 1.21 1.14 1.08 1.02 0.96 0.91 0.86 0.81 0.76 0.72 0.68 0.64
PERIOD 1.14 msec 1.07 msec 1.01 msec 955 usec 901 usec 851 usec 803 usec 758 usec 715 usec 676 usec 638 usec 602 usec 568 usec
                           
FREQ. 440 466 494 523 (C5) 554 587 622 659 698 740 784 831 880
INCH 30.82 29.09 27.46 25.91 24.46 23.09 21.79 20.57 19.41 18.32 17.30 16.33 15.41
FEET 2.57 2.42 2.29 2.16 2.04 1.92 1.82 1.71 1.62 1.53 1.44 1.36 1.28
PERIOD 2.27 msec 2.1 msec 2 msec 1.9 msec 1.8 msec 1.7 msec 1.6 msec 1.5 msec 1.4 msec 1.35 msec 1.28 msec 1.2 msec 1.14 msec
                           
FREQ. 220.0 233.1 246.9 261.6 (C4) 277.2 293.7 311.1 329.6 349.2 370.0 392.0 415.3 440.0
FEET 5.1 4.8 4.6 4.3 4.1 3.8 3.6 3.4 3.2 3.1 2.9 2.7 2.6
PERIOD 4.54 msec 4.3 msec 4 msec 3.8 msec

3.6 msec

3.4 msec 3.2 msec 3 msec 2.9 msec 2.7 msec 2.55 msec 2.4 msec 2.27 msec
                           
FREQ. 110.0 116.5 123.5 130.8 (C3) 138.6 146.8 155.6 164.8 174.6 185.0 196.0 207.7 220.0
FEET 10.3 9.7 9.2 8.6 8.2 7.7 7.3 6.9 6.5 6.1 5.8 5.4 5.1
PERIOD 9.1 msec 8.6 msec 8.1 msec 7.6 msec 7.2 msec 6.8 msec 6.4 msec 6 msec 5.7 msec

5.4 msec

5.1 msec 4.8 msec 4.54 msec
                           
FREQ. 55.0 58.3 61.7 65.4 (C2) 69.3 73.4 77.8 82.4 87.3 92.5 98.0 103.8 110.0
FEET 20.5 19.4 18.3 17.3 16.3 15.4 14.5 13.7 12.9 12.2 11.5 10.9 10.3
PERIOD 18.2 msec 17.2 msec 16.2 msec 15.3 msec 14.4 msec 13.6 msec 12.9 msec 12.1 msec 11.5 msec 10.8 msec 10.2 msec 9.6 msec 9.1 msec
                           
FREQ. 27.5 29.1 30.9 32.7 (C1) 34.6 36.7 38.9 41.2 43.7 46.2 49.0 51.9 55.0
FEET 41.1 38.8 36.6 34.6 32.6 30.8 29.1 27.4 25.9 24.4 23.1 21.8 20.5
PERIOD 36.3 msec 34.4 msec 32.4 msec 30.6 msec 28.9 msec 27.2 msec 25.7 msec 24.3 msec 22.9 msec 21.6 msec 20.4 msec 19.3 msec 18.2 msec
                           
FREQ. 13.75 14.6 15.4 16.4 (C0) 17.3 18.4 19.4 20.6 21.8 23.1 24.5 26.0 27.5
FEET 82.2 77.6 73.2 69.1 65.2 61.6 58.1 54.8 51.8 48.9 46.1 43.5 41.1
PERIOD 73 msec 68.5 msec 65 msec 61 msec 57.8 msec 54.3 msec 51.5 msec 48.5 msec 45.9 msec 43.2 msec

40.8 msec

38.4 msec 36.3 msec
                           
FREQ. 6.9 7.3 7.7 8.2 8.7 9.2 9.7 10.3 10.9 11.6 12.2 13.0 13.75
FEET 164.4 155.1 146.4 138.2 130.5 123.1 116.2 109.7 103.5 97.7 92.2 87.1 82.2
PERIOD 145 msec 137 msec 130 msec 122 msec 115 msec 109 msec 103 msec 97 msec 92 msec 86 msec 82 msec 77 msec 73 msec
SEMITONES = the 12TH ROOT OF 2 = 1.O59463O94 x the PREVIOUS freq; THE RECIPROCAL OF WHICH IS  .943874312
 
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Barry's Handy Frequency-To-Wavelength-To-Period Chart V 3.11 at   www.soundoctor.com/freq.htm
 

This is a frequency and wavelength chart for real (and extrapolated out to beyond real) musical notes.
Notice the lower frequencies are in [decimal] feet, the middle frequencies are in BOTH feet and inches
and the highest frequencies are in inches only, for convenience.

The most recent addition is the period row! This assists in determining alignments in time for everything from subwoofers to individual drivers. msec = milliseconds; usec = microseconds.  A VERY important point: the period is of course for a full wavelength. That means if you had a subwoofer with a group delay of 10 msec it would be a full wavelength late (360 degrees late) at 100 Hz. If you were to only measure using "frequency response" you might think the frequency response is "flat" or "neutral" however the far more important "impulse response" is off. Since 80 Hz is always the main freq of interest, it's wavelength is 14 feet and it's period is 12.5 msec. I'm going to do an even freq page and a 1/3 octave iso band page... "soon".
The boxes closest to 20 Hz and 20 KHz, the defined limits to human hearing, have pink backgrounds.
A-440 is in a YELLOW box.
The area around 80 Hz, the suggested crossover freq for Home theater /surround systems has 2 boxes marked in a recognizable tan color.
The fundamental frequency of the lowest note on a regular piano = A0 = 27.5 Hz and the highest is C8=4186 Hz.
These boxes are white on black. The Boesendorfer Model 290 has 9 extra sub-bass notes down to the low C (C0) at 16.4 Hz.
FULL WAVELENGTHS ARE SHOWN; REMEMBER A HALF WAVELENGTH IS HALF AS LONG.
Since sound travels at about 1130 ft/sec at approx 68 degrees F, a frequency of 1130 Hz would have a wavelength of a foot.
The closest box is in GREEN so it's easier to find.
The numbers shown are "fundamental" frequencies. The physical characteristic that enables your hearing to determine the difference between an "A" note played on a trumpet, a piano, a guitar, and a clarinet is due to the fact that each instrument has combinations of harmonics, both even and odd ordered. It is the ratio and the loudness envelope (attack / decay / sustain / release) of each of these harmonics, all playing in unison, which enables us to tell the difference between instruments. Only pure sine waves from a generator (or computer) are their stated numerical frequency. A "middle C" on a piano has a fundamental of 261.6 Hz, but also various combinations of both even numbered and odd numbered harmonics, typically all the way up to 16744 Hz. That's the 64th harmonic !
NOTE: If you adjust the FONT SIZE appropriately, you will also adjust how the chart prints on paper.
This page is NOT constricted by CSS stylesheets.  In your browser, go to:   View > Text size >    The page is designed for "smaller".
If you want to see the old chart, it's here: www.soundoctor.com/freq_old.htm
...and to see my entire blog about the speed of sound, go HERE
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THIS PAGE WAS UPDATED ON March 28, 2011    Go back HOME