12-String Guitar tuner — Drop B
B-B-F#-F#-B-B-E-E-G#-G#-C#-C# · Drop
This free online tuner listens through your microphone and shows how close each string of your 12-String Guitar is to Drop B tuning (B-B-F#-F#-B-B-E-E-G#-G#-C#-C#). Play a string, watch the needle, and turn the peg until the meter glows green. If you prefer tuning by ear, tap any string card to hear its reference tone.
Other 12-String Guitar tunings
Standard
Drop
Chords for this tuning
How do I tune my 12-String Guitar to Drop B?
Allow microphone access, pluck a string, and the tuner will detect it automatically. The needle shows whether the string is flat or sharp — adjust until the reading is within ±5 cents (B-B-F#-F#-B-B-E-E-G#-G#-C#-C#).
Which notes are used in Drop B tuning?
Drop B tuning for 12-String Guitar uses the notes B-B-F#-F#-B-B-E-E-G#-G#-C#-C#, listed from the lowest string to the highest.
Can I tune without a microphone?
Yes. Every string card plays a reference tone — tap it and match your string to the sound by ear.