Music Transposition Calculator

Music

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Transposes melodies or chords from one key to another, calculating the necessary interval adjustments.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Original Key, Target Key, and Original Note (e.g., C4, D#5) in the units shown.

Step 2

Read Transposed Note and Interval (semitones) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

C to G

Original Key: C; Target Key: G; Original Note (e.g., C4, D#5): C4

Transposed Note: Transposition calculation not implemented. Please input the original note and the transposition interval manually.; Interval (semitones): 7 semitones

G to C

Original Key: G; Target Key: C; Original Note (e.g., C4, D#5): G4

Transposed Note: Transposition calculation not implemented. Please input the original note and the transposition interval manually.; Interval (semitones): -7 semitones

C to D

Original Key: C; Target Key: D; Original Note (e.g., C4, D#5): C4

Transposed Note: Transposition calculation not implemented. Please input the original note and the transposition interval manually.; Interval (semitones): 2 semitones

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