Semitone Calculator

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Note-to-note compares two notes. Frequency-to-frequency compares two Hz values. Transpose calculates a target frequency from a starting note and a semitone shift.
The lower or first note of the interval.
The upper or second note of the interval.
Standard concert pitch is 440 Hz. Some orchestras use 432 Hz (historically informed) or 442-443 Hz (European orchestral standard). Changing this shifts all frequencies proportionally.
Hz
Semitones
7

Number of semitones between the two notes or frequencies

Cents700c
IntervalPerfect 5th
Frequency ratio1.498307
Target frequency659.2551Hz
Start frequency440Hz
MIDI - start note69
MIDI - target note76
Nearest note (start)A4 (in tune)
Nearest note (target)E5 (in tune)
Semitones7
Cents / 100700

Perfect 5th - 7.00 semitones upward

  • The interval spans 7.0000 semitones (700.0 cents) in the upward direction.
  • The frequency ratio f2/f1 is 1.498307, meaning the target note vibrates at 149.83% of the starting frequency.
  • In standard 12-tone equal temperament this interval is closest to a Perfect 5th.

Next stepUse the transposition mode to find what frequency any note lands on after shifting a set number of semitones, useful for capo calculations, pitch shifting, and modulation planning.

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