Frequency   

 

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The following table was calculated to provide a convenient lookup for note frequencies in an equally tempered scale.  Each note is related to its neighbor by the twelfth root of two.  The reason for the "twelfth root" is there are twelve notes per musical octave.  The reason for the "two" is that a musical octave is generally defined as a doubling of frequency (x2).  For "equal temperament" the frequency of the next note is derived by multiplying the frequency of the previous note, by 1.05946309435929526456182529494634 (which is approximately the twelfth root of 2).

Octaves 0 Through 5

Note

Frequency in Hertz

 

Note

Frequency in Hertz

C0

16.3515978312874146673656245952065

 

C3

130.812782650299317338924996761652

C#0

17.3239144360545060155491458500756

 

C#3

138.591315488436048124393166800605

D0

18.3540479948379725164239383662862

 

D3

146.832383958703780131391506930290

D#0

19.4454364826300569210232199578833

 

D#3

155.563491861040455368185759663067

E0

20.6017223070543706084901100654097

 

E3

164.813778456434964867920880523278

F0

21.8267644645627427778359525399942

 

F3

174.614115716501942222687620319954

F#0

23.1246514194771499333559505964134

 

F#3

184.997211355817199466847604771307

G0

24.4997147488593308803562206537391

 

G3

195.997717990874647042849765229913

G#0

25.9565435987465711576526118083572

 

G#3

207.652348789972569261220894466858

A0

27.5000000000000000000000000000000

 

A3

220.000000000000000000000000000000

A#0

29.1352350948806197754501956110244

 

A#3

233.081880759044958203601564888195

B0

30.8677063285077569894221588661774

 

B3

246.941650628062055915377270929419

 

 

 

 

 

C1

32.7031956625748293347312491904131

 

C4 j

261.625565300598634677849993523305

C#1

34.6478288721090120310982917001513

 

C#4

277.182630976872096248786333601210

D1

36.7080959896759450328478767325725

 

D4

293.664767917407560262783013860580

D#1

38.8908729652601138420464399157667

 

D#4

311.126983722080910736371519326134

E1

41.2034446141087412169802201308194

 

E4

329.627556912869929735841761046555

F1

43.6535289291254855556719050799885

 

F4

349.228231433003884445375240639908

F#1

46.2493028389542998667119011928268

 

F#4

369.994422711634398933695209542615

G1

48.9994294977186617607124413074782

 

G4

391.995435981749294085699530459826

G#1

51.9130871974931423153052236167144

 

G#4

415.304697579945138522441788933715

A1

55.0000000000000000000000000000000

 

A4

440.000000000000000000000000000000

A#1

58.2704701897612395509003912220488

 

A#4

466.163761518089916407203129776390

B1

61.7354126570155139788443177323549

 

B4

493.883301256124111830754541858839

 

 

 

 

 

C2

65.4063913251496586694624983808262

 

C5

523.251130601197269355699987046609

C#2

69.2956577442180240621965834003026

 

C#5

554.365261953744192497572667202420

D2

73.4161919793518900656957534651449

 

D5

587.329535834815120525566027721159

D#2

77.7817459305202276840928798315334

 

D#5

622.253967444161821472743038652267

E2

82.4068892282174824339604402616388

 

E5

659.255113825739859471683522093110

F2

87.3070578582509711113438101599770

 

F5

698.456462866007768890750481279816

F#2

92.4986056779085997334238023856536

 

F#5

739.988845423268797867390419085229

G2

97.9988589954373235214248826149564

 

G5

783.990871963498588171399060919651

G#2

103.8261743949862846306104472334290

 

G#5

830.609395159890277044883577867430

A2

110.0000000000000000000000000000000

 

A5

880.000000000000000000000000000000

A#2

116.5409403795224791018007824440980

 

A#5

932.327523036179832814406259552781

B2

123.4708253140310279576886354647100

 

B5

987.766602512248223661509083717678

 j Middle C

 Octaves 6 Through 9 

Note

Frequency in Hertz

 

Note

Frequency in Hertz

C6

1046.50226120239453871139997409322

 

C8

4186.00904480957815484559989637288

C#6

1108.73052390748838499514533440484

 

C#8

4434.92209562995353998058133761936

D6

1174.65907166963024105113205544232

 

D8

4698.63628667852096420452822176927

D#6

1244.50793488832364294548607730453

 

D#8

4978.03173955329457178194430921814

E6

1318.51022765147971894336704418622

 

E8

5274.04091060591887577346817674488

F6

1396.91292573201553778150096255963

 

F8

5587.65170292806215112600385023853

F#6

1479.97769084653759573478083817046

 

F#8

5919.91076338615038293912335268183

G6

1567.98174392699717634279812183930

 

G8

6271.92697570798870537119248735721

G#6

1661.21879031978055408976715573486

 

G#8

6644.87516127912221635906862293944

A6

1760.00000000000000000000000000000

 

A8

7040.00000000000000000000000000000

A#6

1864.65504607235966562881251910556

 

A#8

7458.62018428943866251525007642225

B6

1975.53320502449644732301816743536

 

B8

7902.13282009798578929207266974142

 

 

 

 

 

C7

2093.00452240478907742279994818644

 

C9

8372.01808961915630969119979274575

C#7

2217.46104781497676999029066880968

 

C#9

8869.84419125990707996116267523873

D7

2349.31814333926048210226411088464

 

D9

9397.27257335704192840905644353855

D#7

2489.01586977664728589097215460907

 

D#9

9956.06347910658914356388861843627

E7

2637.02045530295943788673408837244

 

E9

10548.08182121183775154693635348980

F7

2793.82585146403107556300192511926

 

F9

11175.30340585612430225200770047710

F#7

2959.95538169307519146956167634092

 

F#9

11839.82152677230076587824670536370

G7

3135.96348785399435268559624367860

 

G9

12543.85395141597741074238497471440

G#7

3322.43758063956110817953431146972

 

G#9

13289.75032255824443271813724587890

A7

3520.00000000000000000000000000000

 

A9

14080.00000000000000000000000000000

A#7

3729.31009214471933125762503821112

 

A#9

14917.24036857887732503050015284450

B7

3951.06641004899289464603633487071

 

B9

15804.26564019597157858414533948280