The minor chord formula is 1–♭3–5: the root, a minor third, and a perfect fifth. In semitones, those notes sit 0, 3, and 7 half steps above the root. For example, C minor contains C–E♭–G.
This three-note structure is called a minor triad. Once you understand the formula, you can build a minor chord from any starting note instead of memorizing every piano shape, guitar fingering, or chord chart.
What Is the Minor Chord Formula?
The minor chord formula is 1–♭3–5. The numbers describe intervals measured from the root:
- 1 is the root
- ♭3 is the minor third
- 5 is the perfect fifth
Another way to express the formula is 0–3–7 semitones. The root is counted as zero, the minor third is three half steps above it, and the perfect fifth is seven half steps above it.
A third method is to stack intervals. Begin on the root, move up a minor third, and then move up a major third. That creates the same three chord tones:
| Formula system | Minor chord structure |
|---|---|
| Scale degrees | 1–♭3–5 |
| Intervals above the root | Root–minor third–perfect fifth |
| Semitones above the root | 0–3–7 |
| Stacked thirds | Minor third + major third |
| C minor example | C–E♭–G |
The minor third interval gives the chord its minor quality. The fifth remains unchanged from a major chord.
How Do You Build a Minor Chord?
You can build a minor chord with scale degrees, half-step counting, or by altering a major chord. Each method produces the same result, so use whichever makes the most sense on your instrument.
Use scale degrees
Choose a root and treat it as scale degree 1. Add the note a minor third above it as ♭3, then add the perfect fifth as 5.
For C minor:
- Start with C as the root.
- Move to E♭, a minor third above C.
- Add G, a perfect fifth above C.
The result is C–E♭–G. This interval-based approach is the foundation of how chords are built in every key.
Count half steps
Starting from the root, count three half steps to find the minor third and seven half steps to find the perfect fifth. For E minor, three half steps above E is G, while seven half steps above E is B. Therefore, E minor is E–G–B.
Half-step counting is practical on a keyboard or fretboard, but spelling still matters. A chord must contain some form of the letters 1, 3, and 5. F minor is written F–A♭–C, not F–G♯–C, because A♭ is the third letter above F.
Convert a major chord into minor
A major chord uses 1–3–5. Lowering its third by one semitone changes the formula to 1–♭3–5 and creates a minor chord.
For example, C major is C–E–G. Lower E to E♭, leave C and G unchanged, and the result is C minor. A fuller major-versus-minor chord comparison shows why this one-note alteration changes the chord’s identity so clearly.
What Notes Are in Every Minor Chord?
Every minor chord contains a root, minor third, and perfect fifth. The following table applies the 1–♭3–5 formula to all 12 chromatic roots using common practical spellings.
| Chord | Notes |
| C minor (Cm) | C–E♭–G |
| C♯ minor (C♯m) | C♯–E–G♯ |
| D minor (Dm) | D–F–A |
| E♭ minor (E♭m) | E♭–G♭–B♭ |
| E minor (Em) | E–G–B |
| F minor (Fm) | F–A♭–C |
| F♯ minor (F♯m) | F♯–A–C♯ |
| G minor (Gm) | G–B♭–D |
| G♯ minor (G♯m) | G♯–B–D♯ |
| A minor (Am) | A–C–E |
| B♭ minor (B♭m) | B♭–D♭–F |
| B minor (Bm) | B–D–F♯ |
The ♭ in the formula means “one semitone below the major third,” not “the note name must contain a flat sign.” In A minor, for example, the ♭3 is C natural because C♯ would be the major third. Learning the perfect fifth interval helps confirm the final chord tone without relying only on note-shape memory.
What Makes a Minor Chord Different From a Major Chord?
A minor chord has a minor third, while a major chord has a major third. Both contain the same root and perfect fifth, so the third alone determines whether the triad is major or minor.
| Feature | Major chord | Minor chord |
| Formula | 1–3–5 | 1–♭3–5 |
| Semitones | 0–4–7 | 0–3–7 |
| Stacked thirds | Major third + minor third | Minor third + major third |
| C-root example | C–E–G | C–E♭–G |
| Common symbol | C | Cm |
Minor chords are often described as sad and major chords as happy, but that shortcut is incomplete. Tempo, register, rhythm, melody, dynamics, voicing, and harmonic context all affect how a chord feels. The formula identifies the chord’s interval structure, not a guaranteed emotion.
Common symbols include Cm, Cmin, and C−. Cm is usually the clearest and most widely recognized option.
Is a Minor Chord the Same as a Minor Scale?
A minor chord and a minor scale are not the same. A basic minor chord contains three distinct notes—1, ♭3, and 5—whereas a minor scale contains seven distinct scale degrees before the octave repeats.
The A natural minor scale is A–B–C–D–E–F–G. Its tonic triad uses only A, C, and E, producing A minor. Harmonic and melodic minor scales alter other degrees, but their tonic triads still contain 1, ♭3, and 5.
This distinction matters because a chord is a vertical collection of notes heard together, while a scale is an ordered pitch collection used to organize melody and harmony. The guide to chords versus scales explains how the two systems interact without being interchangeable.
How Are Minor Chords Used in Music?
Minor chords can act as a tonal center, appear naturally inside a major key, or add contrast within a chord progression. Their function depends on the key and surrounding harmony rather than on chord quality alone.
Minor chords in major keys
In a major key, the triads built on scale degrees 2, 3, and 6 are minor. In C major, those chords are Dm, Em, and Am. They share notes with the key while contributing a different color from the major I, IV, and V chords. The full pattern is covered in chords within a major key.
Minor chords in minor keys
In a minor key, the tonic chord is minor. In A minor, Am functions as the i chord and provides the principal point of rest. Other chords may change depending on whether the music uses natural, harmonic, or melodic minor material.
Inversions and doubled notes
Reordering the notes does not change the chord’s basic quality. C–E♭–G is root-position C minor; E♭–G–C is first inversion; and G–C–E♭ is second inversion. A guitar or piano voicing may also repeat one or more tones across octaves and still remain a C minor chord. Understanding first-inversion chords makes it easier to recognize the same harmony when the root is not the lowest note.
Frequently Asked Questions
What notes are in a minor chord?
A minor chord contains a root, minor third, and perfect fifth. Its formula is 1–♭3–5; for example, D minor contains D–F–A.
How many semitones are in a minor chord?
The chord tones are 0, 3, and 7 semitones above the root. When stacked, the first interval spans three semitones and the second spans four.
Can you turn any major chord into a minor chord?
Yes. Lower the major chord’s third by one semitone while keeping the root and perfect fifth unchanged. E major, E–G♯–B, becomes E minor, E–G–B.
Is the ♭3 always written as a flat note?
No. The symbol ♭3 describes a lowered scale degree, not necessarily a note with a flat accidental. In E minor, G natural is the ♭3 because the major third would be G♯.
What is the difference between a minor chord and a minor seventh chord?
A minor triad uses 1–♭3–5. A minor seventh chord adds ♭7, creating 1–♭3–5–♭7; for example, Am is A–C–E, while Am7 is A–C–E–G. The complete minor seventh formula explains that added interval.
Can a minor chord appear in a major key?
Yes. Minor chords occur naturally on the second, third, and sixth scale degrees of a major key. In G major, those diatonic minor chords are Am, Bm, and Em.
Liam Turner is a guitar theory writer and chord analysis specialist at Chord Calculator. He focuses on chord construction, music theory, scale relationships, harmony tools, and guitar learning resources for musicians, producers, songwriters, and beginners. Liam creates practical, easy-to-follow content around chord progressions, interval formulas, key analysis, and interactive music tools to help users better understand harmony, songwriting, and instrument practice.