Octave Calculator

Calculate octave differences between frequencies, find target frequencies across multiple octaves, or analyze doubling relationships on VoiceFrequencyTest.

Calculation Mode

What do you want to find?

Base Frequency

Target Values

Target Frequency

Enter a second frequency to calculate the distance in octaves.

Octave Shift (+/-)

Octaves

Positive numbers double frequency per octave, negative numbers halve it.

+1.00 Octaves

Double Frequency

Ratio: 2.00000x

1200 Cents

Accuracy Note: One musical octave represents exactly a 2:1 frequency ratio (1200 cents). Shifting by $n$ octaves multiplies the base frequency by $2^n$ on VoiceFrequencyTest.