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Trumpet Tuner
Check trumpet tuning with concert B-flat and F reference targets, using steady notes and your browser microphone.
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.
Trumpet tuning notes
The trumpet preset uses sounding concert Bb3, F4, Bb4. On a B-flat trumpet these correspond to written C4, G4, C5.
| Target | Note | Frequency |
|---|---|---|
| 1 | Bb3 | 233.08 Hz |
| 2 | F4 | 349.23 Hz |
| 3 | Bb4 | 466.16 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 trumpet
Warm up first and play at a comfortable volume without forcing the pitch with your lips. Adjust the main tuning slide gradually: pulling it out lowers pitch and pushing it in raises pitch.
Does this trumpet tuner show written or concert pitch?
It shows sounding concert pitch. For a B-flat trumpet, a written C sounds B-flat. Choose Chromatic for other notes or a trumpet in a different key.
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.