How to Use Vocal Range Calculator
Enter the lowest note and highest note with octave numbers, such as C3 and G5. The calculator converts both notes to MIDI-style pitch numbers, verifies that the high note is not below the low note, and reports the range as octaves plus remaining semitones. Sharps and flats are accepted in note names.
Formula & Theory - Vocal Range Calculator
Each pitch with an octave can be mapped to a semitone number using MIDI-style indexing: C4 is 60 when octave numbering follows (octave + 1) * 12 + pitch class index. The range is the difference between highest and lowest semitone numbers, then split into full octaves and leftover semitones.
midi = (octave + 1) * 12 + pitchClassIndex
span = highestMidi - lowestMidi
octaves = floor(span / 12)
semitones = span mod 12Use Cases for Vocal Range Calculator
Use it for singer range notes, choir placement, vocal coaching, arranging parts, comparing song requirements with a performer’s range, or documenting warm-up progress over time.