MUIC & ACOUTIC – PIANO & KEYBOARD CALCULATOR
Midi Note To Frequency
A precise tool.
What is the Midi Note To Frequency & How does it work?
The MIDI (Musical Instrument Digital Interface) note number system assigns a unique identifier to each note on the piano keyboard, ranging from 0 to 127. The lowest note, A0, is assigned the number 21, and the highest note, G9, is assigned the number 127.
f = 440 times (2^{frac{n-69}{12}})
f = frequency in Hz, n = MIDI note number
This formula allows us to calculate the frequency of any note given its MIDI number. For example, Middle C (C4) has a MIDI number of 60 and corresponds to a frequency of approximately 261.63 Hz.
Parameters
Result
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Frequently Asked Questions
What is the frequency of Middle C (C4) in Hz?
Middle C (C4) has a MIDI number of 60 and corresponds to a frequency of 261.63 Hz.
How do I calculate the frequency for a given MIDI note number?
Use the formula f = 440 × (2^(n-69)/12), where n is your MIDI note number.
What is the lowest MIDI note and its frequency?
The lowest MIDI note, A0, has a MIDI number of 21 and corresponds to a frequency of approximately 27.5 Hz.
Can you give me the frequency for MIDI note number 84?
MIDI note number 84 corresponds to a frequency of 493.88 Hz, which is A5.
What is the highest MIDI note and its frequency?
The highest MIDI note, G9, has a MIDI number of 127 and corresponds to a frequency of approximately 12543.85 Hz.
How does the formula work for converting MIDI notes to frequencies?
The formula f = 440 × (2^(n-69)/12) uses A4 as a reference point at 440 Hz, and calculates the frequency by adjusting for the number of semitones from A4.
What is the frequency of C5 in Hz?
C5 has a MIDI number of 69 and corresponds to a frequency of 523.25 Hz.
Results are for informational purposes only and do not constitute professional advice.