AbraCalc

Cents Between 100 Hz and 200 Hz

The interval from 100 Hz to 200 Hz is exactly 1200 cents — one octave.

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How to use this tool

  1. Enter frequency 1 and frequency 2 in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your interval and the full breakdown beneath it.

Doubling any frequency always yields exactly 1200 cents (one octave), regardless of the starting pitch.

Frequently asked questions

How many cents is one semitone?
Exactly 100 cents. An octave spans 1200 cents (12 × 100).
How do I use this for tuning?
Enter the reference pitch and the measured pitch. If cents offset is within ±5 ¢ the instrument is in tune.