LESS FUSS. MORE MUSIC.
Bass Guitar Tuner
Tune a four-string bass guitar in standard E A D G tuning with your microphone and the on-screen pitch meter.
READY WHEN YOU ARE
Hz play a single note
Your next good note starts here.
Start the microphone, then play a single note.
Just you and your instrument. Audio stays on your device.
Pick your instrument
Use a preset or go chromatic.
Tap a note to tune a specific string.
Let it listen
Allow microphone access.
Play one clear note at a time.
Meet in the middle
Adjust until the marker turns green.
Flat? Tighten. Sharp? Loosen.
Bass Guitar tuning notes
Standard four-string bass tuning is E1, A1, D2, G2, from the thickest string to the thinnest. These pitches are one octave below the lowest four guitar strings.
| Target | Note | Frequency |
|---|---|---|
| 1 | E1 | 41.20 Hz |
| 2 | A1 | 55.00 Hz |
| 3 | D2 | 73.42 Hz |
| 4 | G2 | 98.00 Hz |
Targets are listed in preset order. Frequencies above use A4 = 440 Hz; changing Reference A4 adjusts the live tuner targets.
How to tune your bass guitar
Low bass notes need a clear signal. Use a quiet room, pluck one string gently, and let the attack settle. If an unplugged electric bass is too quiet for the microphone, use an amplifier at a moderate volume.
Can I tune a five-string bass with this tuner?
Use Chromatic for the additional low B0 string or other bass tunings. The bass preset contains the four standard E A D G targets.
What do flat, sharp, and cents mean?
Flat means your pitch is below the target; sharp means it is above it. A cent is one hundredth of a semitone. Move toward 0 cents using small adjustments. For strings, tighten to raise pitch and loosen to lower it.
Can I change the reference pitch?
Reference A4 defaults to 440 Hz and accepts 400–480 Hz. Match your ensemble’s reference before tuning. The selected preset keeps its note names while its target frequencies adjust.
Choose your instrument tuner
Open a dedicated tuner for your instrument, or share its link for your next practice session.