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Cents Calculator
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About Cents Calculator
Calculate pitch deviation in cents between two frequencies. 100 cents = 1 semitone. Useful for tuning and microtonal work.
How It Works
Enter two frequencies to calculate pitch difference in cents using 1200 × log₂(f₂/f₁), with nearest note identification.
Frequently Asked Questions
What is a cent in music?
1/100th of a semitone (1200 cents = 1 octave). A logarithmic unit — each cent is the same pitch ratio regardless of frequency.
How many cents is noticeable?
5-10 cents in isolation. Up to 15-20 cents may be tolerable in context. Professional tuning targets ±2 cents.