5-String Bass Tuner
Tune a 5-string bass to B E A D G with your microphone. The tuner picks up notes down to the low B. Half step down, drop A and high-C tunings are in the menu.
- Free, no sign-up
- B E A D G
- Low-B detection
- Private, on-device
Reference pitch (A4)
Hz
Lower it in noisy rooms
Press Start tuning, then play a string
0/5 tuned
5-String Standard notes
A4 = 440 Hz| String | Note | Frequency |
|---|---|---|
| 5 | B0 | 30.87 Hz |
| 4 | E1 | 41.20 Hz |
| 3 | A1 | 55.00 Hz |
| 2 | D2 | 73.42 Hz |
| 1 | G2 | 98.00 Hz |
Tuning the low B
Standard 5-string tuning adds a low B0 (30.87 Hz) below E A D G. Few phone or laptop microphones can hear notes that low. Instead, play the harmonic at the 12th fret and lock the string in Manual mode. The tuner ignores the octave difference.
Some players prefer a high C instead of the low B. For that, choose 5-string high C.
Keyboard shortcuts
- Space Start or stop the microphone
- 1–9 Play a string’s reference note
- M Switch Auto / Manual mode
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Start the tuner
Press Start tuning and allow access to the microphone. Hold your 5-string bass 20–50 cm from the mic.
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Play one string
Pluck one string and let it ring. Auto mode shows the closest string. To stay on one string, switch to Manual.
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Adjust the tuning machine
If the needle is on the left, tighten the string to raise the pitch. If it is on the right, loosen it. Stop when the needle is in the middle and turns green.
Frequently asked questions
How is a 5-string bass tuned?
Standard tuning is B0 E1 A1 D2 G2, which is 4-string bass tuning with an extra low B.
The tuner can’t hear my low B string. What can I do?
B0 is about 31 Hz, which is too low for most built-in microphones to pick up. Play the harmonic at the 12th fret and lock the string in Manual mode, or plug into an audio interface.
What is drop A on a 5-string bass?
Drop A lowers the B string a whole step to A0 (A E A D G) for extra-low riffs.
All bass tunings
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