Free Online Music Interval & Scale Calculator
Find the Notes in Any Scale from Any Root Note
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Building a scale from any root note requires applying the correct pattern of semitone intervals for that scale type — major, minor, pentatonic, and modal scales each use a distinct interval pattern — and working this out manually means counting up the chromatic scale by hand for every note.
C
Unison
D
Major 2nd
E
Major 3rd
F
Perfect 4th
G
Perfect 5th
A
Major 6th
B
Major 7th
All intervals from C
| Semitones | Interval | Note |
|---|---|---|
| 0 | Unison | C |
| 1 | Minor 2nd | C# |
| 2 | Major 2nd | D |
| 3 | Minor 3rd | D# |
| 4 | Major 3rd | E |
| 5 | Perfect 4th | F |
| 6 | Tritone | F# |
| 7 | Perfect 5th | G |
| 8 | Minor 6th | G# |
| 9 | Major 6th | A |
| 10 | Minor 7th | A# |
| 11 | Major 7th | B |
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Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
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About Music Interval & Scale Calculator
Building a scale from any root note requires applying the correct pattern of semitone intervals for that scale type — major, minor, pentatonic, and modal scales each use a distinct interval pattern — and working this out manually means counting up the chromatic scale by hand for every note.
This calculator takes any root note and scale type — major, natural minor, harmonic minor, major and minor pentatonic, blues, or the Dorian and Mixolydian modes — and instantly lists every note in that scale along with the interval name (like 'Major 3rd' or 'Perfect 5th') from the root to each note.
A full reference table below also shows all twelve possible intervals from your chosen root note, useful for music theory study, songwriting, or quickly checking what note lies a specific interval away from any starting pitch.
How it works
- Select a root note. Choose any of the twelve chromatic notes as your starting point.
- Select a scale type. Pick from major, minor, pentatonic, blues, or modal scales.
- Read the scale notes. See every note in the scale along with its interval name from the root.
Examples
C Major scale
Input
Root: C, Scale: Major
Output
C, D, E, F, G, A, B