Online cello tuner

violin headstock with tuning pegs

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How to tune a cello online

Press "Tap to tune" and allow microphone access. Bow one open string steadily and let the pitch settle. The tuner shows the note and whether you are flat or sharp. Use the fine tuner for small adjustments or the peg for larger ones. Tune all four strings, then repeat once more to confirm stability.
How to tune a cello online using the GuitarTuna tuner

Standard cello tuning and target notes

The standard cello tuning is C G D A from low to high, an octave below the viola. Use the note list as your target and bow one string at a time.
Switching string counts and tuning targets for cello

Tips for tuning your cello

Low cello strings take longer for the tuner to read accurately. Bow each string steadily and give the tuner a moment to settle. Use fine tuners for the A and D strings, and pegs for larger C and G adjustments.
Tips for accurate and consistent cello tuning