This pitch shift calculator converts a starting note, MIDI number or frequency into a new pitch after transposition. Enter semitones or cents to see the destination note, frequency, MIDI value, interval and frequency ratio instantly in your browser.
Choose the starting pitch as a musical note, MIDI number or frequency. Then enter a positive or negative transposition in semitones and cents.
A4 shifted up by 7 semitones becomes E5.
Cents are included as fractional semitones: 100 cents = 1 semitone.
The pitch shift calculator connects three common ways of describing musical pitch: note names, MIDI note numbers and frequencies. Once the starting pitch is known, the selected number of semitones and cents determines the destination pitch.
In twelve-tone equal temperament, moving one octave changes the frequency by a factor of two. That octave is divided into twelve equal logarithmic steps. This makes it possible to calculate a transposition mathematically rather than estimating the resulting frequency.
Start from a note such as A4, a MIDI number such as 69, or a frequency such as 440 Hz.
Use whole semitones for chromatic transposition and cents when a smaller adjustment is needed.
Compare the new frequency, MIDI position, nearest note, interval and frequency ratio.
If you are exploring other browser-based music utilities, visit Audio Tools for Recording, Mixing, and Ear Training. For a hands-on view of level and signal relationships, the Interactive Online Audio Mixer offers a different kind of practical audio exercise.
Semitones provide a direct way to describe musical transposition. A shift of +1 semitone moves the pitch one chromatic step upward, while −1 semitone moves it one step downward.
Twelve semitones make an octave. Seven semitones correspond to a perfect fifth, five to a perfect fourth, and smaller values can describe the other chromatic intervals.
When transposition is part of a larger music-production workflow, you can also explore the Mixer Console Simulator or learn more about Mixing and Mastering.
When the transposition lands on an exact whole semitone, the calculator identifies the corresponding simple or compound interval. The table below provides several common examples.
| Semitones | Interval | Example from C4 | Frequency Ratio |
|---|---|---|---|
| 0 | Unison | C4 → C4 | 1.0000× |
| 3 | Minor third | C4 → D♯4 / E♭4 | ≈ 1.1892× |
| 4 | Major third | C4 → E4 | ≈ 1.2599× |
| 5 | Perfect fourth | C4 → F4 | ≈ 1.3348× |
| 7 | Perfect fifth | C4 → G4 | ≈ 1.4983× |
| 12 | Octave | C4 → C5 | 2.0000× |
For instrumental sessions where pitch range and arrangement affect the recording plan, see Instrument Recording. Songwriters preparing material before a session may also find the Song Demo Production page useful.
A semitone can be divided into 100 cents. This gives the calculator a way to represent shifts that do not land exactly on another chromatic note.
For example, a shift of +2 semitones and +25 cents is equivalent to +2.25 semitones, or +225 cents. The destination frequency can still be calculated directly even though the result sits between standard note positions.
The result therefore shows both the calculated pitch and its nearest equal-tempered note, including the remaining cent difference. This is useful when comparing small tuning changes as well as ordinary transpositions.
Singers preparing material may also find Musician Psychology and Recording Confidence helpful, while the vocal recording time guide covers practical session planning.
An audio pitch shift calculator becomes more useful when you can start from the value you already have. A musician may know the note name, MIDI data may provide a note number, while measurement or synthesis work may begin with a frequency in hertz.
Select a note and octave and the calculator converts it to its MIDI position and equal-tempered frequency before applying the requested transposition.
MIDI note numbers provide a convenient numeric map of chromatic note positions. With the standard mapping used here, MIDI note 69 corresponds to A4 at the selected A4 reference frequency.
A frequency does not need to fall exactly on a standard note. Enter any positive frequency and the tool can transpose that value directly, while also showing the nearest note and cent offset.
If your project continues from calculations into recording, browse Music Recording or the broader Audio Recording, Mixing & Mastering Services overview.
The calculator starts with A4 = 440 Hz, but the reference field is editable. Changing it shifts the frequency assigned to every equal-tempered note while preserving the same semitone relationships.
This matters when comparing material that uses a different tuning reference. Instead of changing the transposition itself, you can set the reference frequency first and calculate all note frequencies from that basis.
The mathematical relationship remains consistent: moving twelve semitones upward doubles frequency, while moving twelve semitones downward halves it.
For a broader perspective on preparing music for a recording session, the First Time Recording Studio Guide walks through practical preparation, and Music Genre Recording Services covers different musical contexts.
A pitch shift calculator online is useful when you need the numerical result of a transposition without opening a DAW, pitch processor or spreadsheet. It answers the calculation itself rather than changing an audio file.
For performers traveling to record, related planning information is available in Recording Studio Outside Philadelphia and the guide for New York Artists.
No. It calculates pitch relationships and transposition values. It does not process, render or export audio.
A positive value raises the pitch. A negative value lowers it.
In the system used by this calculator, one equal-tempered semitone is divided into 100 cents.
The pitch moves up one octave and its frequency doubles.
Yes. The frequency can be transposed directly. The result also displays its nearest note and cent difference.
Yes. The A4 reference is editable, and the note frequencies are recalculated from the selected reference.
Enter a note, MIDI number or frequency, choose the transposition and get the resulting pitch, frequency and interval immediately.
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