Xilfy
Sign up
Xilfy
XILFY Professional Suite

Quick access

Sign in Sign up

Saved in this browser. Sign in to keep it on all your devices.

Open D Tuning

Open D tunes the open strings to a D major chord. Barre across any fret for a major chord, which makes it a favourite for slide guitar. From standard, lower the 6th, 2nd and 1st strings a whole step and the 3rd a half step.

Sound is analysed on your device; nothing is recorded or uploaded.

–

-50 -25 0 +25 +50

Press Start and allow the microphone.

·

Tap a string to hear its note and tune only that string. Switch back to Auto to let the tuner pick the string.

Mode
Reference pitch (A4)
440 Hz

Pitch trace (centre line = in tune, ±50 cents)

Open D Tuning: string notes and how to tune from standard

Typical styles: Slide guitar, blues, folk and singer-songwriter.

String Note Frequency Standard Change
6 D2 73.42 Hz E2 down whole step
5 A2 110.00 Hz A2 no change
4 D3 146.83 Hz D3 no change
3 F♯3 185.00 Hz G3 down half step
2 A3 220.00 Hz B3 down whole step
1 D4 293.66 Hz E4 down whole step

Guitar tunings

Every tuning the tuner knows, lowest string first, with each string’s frequency at A4 = 440 Hz.

Tuning Notes Frequencies (Hz)
Standard E2 A2 D3 G3 B3 E4 82.41 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63
Drop D D2 A2 D3 G3 B3 E4 73.42 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63
Half step down (E♭) E♭2 A♭2 D♭3 G♭3 B♭3 E♭4 77.78 · 103.83 · 138.59 · 185.00 · 233.08 · 311.13
D standard (full step down) D2 G2 C3 F3 A3 D4 73.42 · 98.00 · 130.81 · 174.61 · 220.00 · 293.66
Drop C C2 G2 C3 F3 A3 D4 65.41 · 98.00 · 130.81 · 174.61 · 220.00 · 293.66
C standard C2 F2 B♭2 E♭3 G3 C4 65.41 · 87.31 · 116.54 · 155.56 · 196.00 · 261.63
Open D D2 A2 D3 F♯3 A3 D4 73.42 · 110.00 · 146.83 · 185.00 · 220.00 · 293.66
Open D minor (DADFAD) D2 A2 D3 F3 A3 D4 73.42 · 110.00 · 146.83 · 174.61 · 220.00 · 293.66
Open G D2 G2 D3 G3 B3 D4 73.42 · 98.00 · 146.83 · 196.00 · 246.94 · 293.66
Open E E2 B2 E3 G♯3 B3 E4 82.41 · 123.47 · 164.81 · 207.65 · 246.94 · 329.63
Open C C2 G2 C3 G3 C4 E4 65.41 · 98.00 · 130.81 · 196.00 · 261.63 · 329.63
DADGAD D2 A2 D3 G3 A3 D4 73.42 · 110.00 · 146.83 · 196.00 · 220.00 · 293.66
Drop B B1 F♯2 B2 E3 G♯3 C♯4 61.74 · 92.50 · 123.47 · 164.81 · 207.65 · 277.18
7-string standard B1 E2 A2 D3 G3 B3 E4 61.74 · 82.41 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63

More tuners

Guitar Tuner Ukulele Tuner Bass Tuner Violin Tuner Cello Tuner Banjo Tuner Chromatic Tuner & Pitch Detector

Guitar tunings

Drop D Half step down (E♭) D standard (full step down) Drop C C standard Open D Open D minor (DADFAD) Open G Open E Open C DADGAD Drop B 7-string standard

Practising after tuning? Keep time with the online metronome.

Version 1.0

About the Open D Tuning

Open D tunes the open strings to a D major chord. Barre across any fret for a major chord, which makes it a favourite for slide guitar. From standard, lower the 6th, 2nd and 1st strings a whole step and the 3rd a half step.

How to use it

  1. 1 Press Start tuner and allow the microphone.
  2. 2 Pick your tuning, or keep Standard (E A D G B E).
  3. 3 Pluck one open string and let it ring: the tuner shows the string and a needle.
  4. 4 Tighten the string if it says tune up, loosen it if it says tune down, until the needle sits in the green and the string gets a tick.

Frequently asked questions

What are the notes of Open D tuning?

From the 6th (thickest) string to the 1st: D A D F♯ A D. From standard tuning: string 6 down whole step to D2, string 3 down half step to F♯3, string 2 down whole step to A3, string 1 down whole step to D4.

What is Open D tuning used for?

Slide guitar, blues, folk and singer-songwriter.

Is my audio recorded or uploaded?

No. The tuner analyses the sound from your microphone in your browser, a few times a second, and throws it away. Nothing is recorded, saved or sent to a server.

Why does the tuner jump between notes?

Usually because more than one string is ringing, the room is noisy, or the note has faded. Mute the other strings with your fretting hand, pluck firmly, and read the needle while the note is still strong. Moving closer to the microphone helps on laptops.

Related tools

Metronome

A steady click from 20 to 300 BPM with tap tempo, time signatures, accents and a speed trainer

BPM Tapper

Tap along to any song to find its beats per minute, with a BPM to ms delay calculator

Tone Generator

Play any frequency from 1 Hz to 22 kHz as a sine, square, triangle or sawtooth wave

Mic Test

Check your microphone with a live meter and playback

Speaker Test

Check left/right and surround speakers, bass, phase and your hearing range

UUID Generator

Generate UUIDs, ULIDs