Chord Transposer

How to Use This Calculator

1. Select a Chord Progression preset.
2. Enter the number of Semitones to transpose (positive = up, negative = down).
3. Choose Sharps or Flats spelling for the output.
4. Use the To Different Key tab to auto-calculate semitones from one key to another.

Formula

Example

Frequently Asked Questions

• How do I transpose chords to a different key? ▼
  Count the semitones between the original root note and the target root note. Apply that same shift to every chord in the progression. For example, C to G = 7 semitones up, so C becomes G, Am becomes Em, F becomes C, G becomes D.
• When should I use sharps vs flats? ▼
  Keys with sharps in their signature (G, D, A, E, B, F#) typically use sharp notation. Keys with flats (F, Bb, Eb, Ab, Db, Gb) use flat notation. For example, the note between D and E is D# in G major but Eb in F major.
• What is the difference between transposing and using a capo? ▼
  Transposing changes the actual chord names (and requires playing different shapes). A capo transposes the pitch while keeping the same physical shapes — it is a mechanical shortcut that raises all strings equally.
• What is enharmonic equivalence? ▼
  C# and Db are the same pitch played on a keyboard, but they have different names depending on context. In music theory, they are called enharmonic equivalents. Our calculator lets you choose which spelling to display.

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