7-String Guitar Tuning
Mic off
7-string standard B E A D G B E
Uses your microphone. Nothing is recorded or sent anywhere.
Tuning
Open tuning
Pitch
Your tuning Raise or lower any string a half step
Strings
Detect string
A4 calibration
- Space Start / stop
- 1-7 Play a string
- A Auto detect
Standard tuning on a 7-string guitar is B E A D G B E: normal six-string standard tuning with an extra low B string underneath.
What is 7-string standard tuning?
The top six strings are tuned exactly like a six-string guitar, so every chord and scale you know still works. The extra 7th string is tuned to B, a fourth below the low E, the same distance as between most of the other strings.
That low B extends your range for heavy riffs, jazz bass lines and big chord voicings. Set the tuner's Strings to 7 and it listens for the low B as well.
7-string standard tuning notes
7-string standard from the thickest string to the thinnest is B E A D G B E. The frequencies are for standard pitch, A4 = 440 Hz.
| String | Note | Frequency |
|---|---|---|
| 7th (thickest) | B1 | 61.74 Hz |
| 6th | E2 | 82.41 Hz |
| 5th | A2 | 110.00 Hz |
| 4th | D3 | 146.83 Hz |
| 3rd | G3 | 196.00 Hz |
| 2nd | B3 | 246.94 Hz |
| 1st (thinnest) | E4 | 329.63 Hz |
How to tune to 7-string standard
Tune each open string to the notes above, from the thickest string to the thinnest.
The tuner at the top of this page is already set to 7-string standard. Press the mic button, play each open string and let it ring, then turn the tuning peg until the string lights up green. Tune up slowly, a little at a time, and give the string a moment to settle.
Why guitarists use 7-string standard
- Extra low range without changing anything on the top six strings.
- Heavy riffs in B and Drop A with one string change.
- Wider chord voicings for jazz and fingerstyle.
Learn to play in 7-string standard
Hear it played and try it yourself with these video lessons from the Infinite Guitar library:
Other guitar tunings
Back to the online guitar tuner
7-string standard tuning FAQ
How do I tune to 7-string standard tuning?
Play each open string, from the thickest to the thinnest, and turn its tuning peg until the tuner lights up green. The notes are B E A D G B E from low to high.
Why does the low B take longer to read?
Low strings vibrate slowly, so the tuner needs a moment longer to measure them. Pluck firmly near the neck and let the string ring for a second.