Hertz frequencies of the notes of the equal tempered scale
There are many ranges or temperaments. This scale is called "temperate" because it divides the octave into twelve perfectly equal semitones.
| Octave 1 | Octave 2 | Octave 3 | Octave 4 | Octave 5 | |
| C | 32.70 | 65.41 | 130.8 | 261.6 | 523.3 |
| C# Db | 34.65 | 69.30 | 138.6 | 277.2 | 554.4 |
| D | 36.71 | 73.42 | 146.8 | 293.7 | 587.3 |
| D# Eb | 38.89 | 77.78 | 155.6 | 311.1 | 622.3 |
| E | 41.20 | 82.41 | 164.8 | 329.6 | 659.3 |
| F | 43.65 | 87.31 | 174.6 | 349.2 | 698.5 |
| F# Gb | 46.25 | 92.50 | 185.0 | 370.0 | 740.0 |
| G | 49.00 | 98.00 | 196.0 | 392.0 | 784.0 |
| G# Ab | 51.91 | 103.8 | 207.7 | 415.3 | 830.6 |
| A | 55.00 | 110.0 | 220.0 | 440.0 | 880.0 |
| A# Bb | 58.27 | 116.5 | 233.1 | 466.2 | 932.3 |
| B | 61.74 | 123.5 | 246.9 | 493.9 | 987.8 |
| Octave 6 | Octave 7 | Octave 8 | Octave 9 | Octave 10 | |
| 1046.5 | 2093.0 | 4186.0 | 8372.0 | 16 744 | C |
| 1108.7 | 2217.5 | 4434.9 | 8869.8 | 17 740 | C# Db |
| 1174.7 | 2349.3 | 4698.6 | 9397.3 | 18 795 | D |
| 1244.5 | 2489.0 | 4978.0 | 9956.1 | 19 912 | D# Eb |
| 1318.5 | 2637.0 | 5274.0 | 10 548 | 21 096 | E |
| 1396.9 | 2793.8 | 5587.7 | 11 175 | 22 351 | F |
| 1480.0 | 2960.0 | 5919.9 | 11 840 | 23 680 | F# Gb |
| 1568.0 | 3136.0 | 6271.9 | 12 544 | 25 088 | G |
| 1661.2 | 3322.4 | 6644.9 | 13 290 | 26 580 | G# Ab |
| 1760.0 | 3520.0 | 7040.0 | 14 080 | 28 160 | A |
| 1864.7 | 3729.3 | 7458.6 | 14 917 | 29 834 | A# Bb |
| 1975.5 | 3951.1 | 7902.1 | 15 804 | 31 609 | B |