Cello Tuner – Free Online Cello Tuner With Microphone
Microphone tunerReady
Play each target note through your speakers.
- Quiet room, one string at a time
- Tune up to the note
- ±5 cents counts as in tune
- Runs inside your browser
- No upload, no account
- Nothing saved after you close
Online cello tuner with microphone
Allow microphone access, play one string at a time and follow the needle until it centres. Tune C2, G2, D3 and A3.
Cello string notes
C2 65.41 Hz, G2 98 Hz, D3 146.83 Hz, A3 220 Hz, an octave below the viola.
Tuning tips
Bow steadily near the bridge for a strong fundamental the mic can detect.
Tuning with a microphone tuner
The tuner detects pitch from the waveform’s repeating period, shows the nearest target string and how many cents away you are.
How to Use the
Cello Tuner
- 01
Quiet
reduce background noise.
- 02
Allow
press Start Tuner and allow the microphone.
- 03
Pluck
play one string and let it ring.
- 04
Adjust
tighten if the needle is left (flat), loosen if right (sharp) until centred.
Cello string notes
C2 65.41 Hz, G2 98 Hz, D3 146.83 Hz, A3 220 Hz, an octave below the viola.
Tuning tips
Bow steadily near the bridge for a strong fundamental the mic can detect.
Tuning with a microphone tuner
The tuner detects pitch from the waveform’s repeating period, shows the nearest target string and how many cents away you are. ±5 cents counts as in tune.
Troubleshooting the tuner
Mic allowed but nothing happens
Choose the correct input in your OS, move closer, and play louder single notes.
Other instruments
See all tuners on the tuners page.
Related guides and fixes
Learn more in these guides: How to tune a guitar, What note am I singing, Microphone not working.
Getting in tune
Tune your cello quickly
Start with A, then D, G and C, using fine tuners for small moves.
Frequently Asked Questions
Q.Why does the needle jump?
Pluck one string at a time and mute others.
Q.Do I need a clip-on tuner?
No, a mic works in a quiet room.
Q.What is a cent?
One hundredth of a semitone.