Transposition Calculator: Move Any Note by Semitones
Transposing is just counting steps along the twelve notes. This calculator counts them for you, in either direction.
What is the Transposition Calculator?
Singers change keys, horn players read transposed parts, and producers shift samples. Enter a note and a semitone shift and this tool gives the new note, including how many octaves the shift crosses.
How to use it
- Enter your values in the fields provided.
- Click Transpose Note.
- Read the result and adjust an input if you want a different outcome.
Worked example
Transposing C up 4 semitones gives E, and transposing C down 2 semitones gives B flat.
What note is C transposed up 4 semitones?
Four semitone steps above C are C sharp, D, E flat, and E, so the transposed note is E.
Frequently asked questions
What do I enter to get a result?
Fill in every field with your own numbers or choices, then run the tool. Empty number fields count as zero, so check them before you trust the output.
Can I reuse this result elsewhere?
Yes. The result is calculated in your browser from the values you entered, so you can copy the numbers into your own notes or plan.