Open D Tuning
Open D tuning is D A D F♯ A D, from string 6 to string 1. Tune each string with the online tuner below, or tap a string on the headstock to hear its note.
- Free, no sign-up
- 6 strings
- Lowest note D2
- Mic stays on your device
Reference pitch (A4)
Hz
Lower it in noisy rooms
Press Start tuning, then play a string
0/6 tuned
Open D notes
A4 = 440 Hz| String | Note | Frequency |
|---|---|---|
| 6 | D2 | 73.42 Hz |
| 5 | A2 | 110.00 Hz |
| 4 | D3 | 146.83 Hz |
| 3 | F♯3 | 185.00 Hz |
| 2 | A3 | 220.00 Hz |
| 1 | D4 | 293.66 Hz |
About Open D tuning
Open strings ring out D major (D).
- Also called Vestapol.
- Open strings: D major (D).
- Range: D2 (73.42 Hz) to D4 (293.66 Hz).
Intervals between strings
- D → A perfect fifth
- A → D perfect fourth
- D → F♯ major third
- F♯ → A minor third
- A → D perfect fourth
How to tune from Standard to Open D
4 of the 6 strings change. Work through the table one string at a time.
| String | Standard | Open D | Change |
|---|---|---|---|
| 6 | E2 | D2 | Lower a whole step |
| 5 | A2 | A2 | No change |
| 4 | D3 | D3 | No change |
| 3 | G3 | F♯3 | Lower a half step |
| 2 | B3 | A3 | Lower a whole step |
| 1 | E4 | D4 | Lower a whole step |
-
Start the tuner
Press Start tuning and allow microphone access. The tuner is already set to Open D.
-
Play one string at a time
Let a string ring and watch the needle. Auto mode finds the closest string in Open D tuning for you.
-
Turn the peg until green
Needle on the left means flat (too low), so tighten. Needle on the right means sharp (too high), so loosen. Green means the string is in tune.
Frequently asked questions
What are the notes of Open D tuning?
From string 6 to string 1, Open D tuning on the guitar is D2, A2, D3, F♯3, A3, D4.
What are the string frequencies of Open D tuning?
At the standard reference pitch of A4 = 440 Hz, the strings are tuned to D2 73.42 Hz, A2 110.00 Hz, D3 146.83 Hz, F♯3 185.00 Hz, A3 220.00 Hz, D4 293.66 Hz. If you change A4 in the tuner settings, every target changes too.
How do I get from Standard tuning to Open D tuning?
4 of the 6 strings change. Work through the table one string at a time.
What chord do the open strings of Open D tuning make?
If you strum the open strings, they play D major (D). Lay one finger flat across any fret and you get the same chord, one semitone higher for each fret.
Can I tune to Open D tuning without a microphone?
Yes. Tap a string on the headstock to hear its note and match it by ear. You can also switch on Repeat to hear the note every few seconds while you turn the peg.
Similar tunings
- Open C Tuning Open strings ring out C major (C). C G C G C E
- Open E Tuning Open strings ring out E major (E). E B E G♯ B E
- Open G Tuning Open strings ring out G major (G). D G D G B D
- Open A Tuning Open strings ring out A major (A). E A E A C♯ E
- Open F Tuning Open strings ring out F major (F). C F C F A F
- Open B Tuning Open strings ring out B major (B). B F♯ B F♯ B D♯
- Open D Minor Tuning Open strings ring out D minor (Dm). D A D F A D
- Open E Minor Tuning Open strings ring out E minor (Em). E B E G B E
- Open A Minor Tuning Open strings ring out A minor (Am). E A E A C E
All guitar tunings
Standard & down-tuned
Drop
Open
Alternate
7-string
8-string
12-string & guitalele
More tuners
- Guitar Tuner Acoustic, electric and 12-string with 45 tunings. E A D G B E
- Bass Tuner 4, 5 and 6-string bass, from drop D to BEAD. E A D G
- Ukulele Tuner Soprano, concert, tenor and baritone ukulele. G C E A
- Violin Tuner G D A E with bowed reference tones. G D A E
- Viola Tuner C G D A, a fifth below the violin. C G D A
- Cello Tuner C G D A, an octave below the viola. C G D A
- Double Bass Tuner Upright bass in orchestral and solo tuning. E A D G
- Banjo Tuner Open G, double C, sawmill, tenor and Irish tenor. G D G B D
- Mandolin Tuner Mandolin, mandola and octave mandolin. G D A E
- Chromatic Tuner Any instrument or voice, with B♭/E♭/F transposition.
Music tools
- Metronome Accurate online metronome with accents and subdivisions.
- Tone Generator Play any frequency from 20 Hz to 20 kHz.
- Tuning Fork 415, 432, 440, 442 and 444 Hz forks.
- Pitch Detector See the exact note and frequency you play. C
- Custom Tuning Tuner Build any tuning with 3 to 12 strings. E A D G B E
- Tune Guitar by Ear Repeating reference notes for every string. E A D G B E