Drop C Bass Tuner

Free online Drop C bass tuner — tune your bass to C G C F by ear with your microphone, accurate to the cent. No app, no sign-up.

The notes (low to high)

C1 · G1 · C2 · F2. Drop C is a whole step below Drop D — the low string lands on a deep C, with the others a fourth apart, giving a heavy low end for modern rock and metal.

What is Drop C bass tuning?

Drop C keeps the Drop-D shape (lowest two strings a fifth apart for easy power-style roots) but moves everything down a whole step to C G C F. It pairs with a guitar in Drop C and sits great under down-tuned riffs.

How to tune to Drop C on bass

1. Open the Drop C bass tuner and allow microphone access.
2. Easiest path: tune to Drop D first, then lower every string one more whole step → C G C F.
3. Play one string at a time; stop when the note turns green (within ±5 cents).

Drop C vs C standard

They're different: Drop C bass = C G C F (low two strings a fifth apart, like Drop D moved down). C standard bass = C F A♯ D♯ (every string down two whole steps, all fourths). This page targets Drop C.

Frequently asked questions

What are the notes for Drop C bass?

Low to high: C G C F.

How do I tune my bass to Drop C?

Tune to Drop D (D A D G), then drop every string a whole step to C G C F.

Is Drop C the same as C standard?

No — Drop C is C G C F; C standard is C F A♯ D♯.

Is it free?

Yes — free in your browser with your mic, no app.

Related tuners: Drop D bass · bass tuner (E A D G) · all-tunings tuner · metronome · play songs

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