Pitch to Frequency Engine
Type a musical note in standard scientific pitch notation (e.g., A4, C3, F#5) to calculate exact frequency and wavelength.
Calculated Frequency
440.00 Hz
Wavelength (in Air @ 20°C)
0.78 m
Fundamental Formulae
Equal Temperament Tuning Formula
f(n) = 440 × 2^((n - 69) / 12)
Where n represents the MIDI note key index (A4 = 69), dividing each octave into 12 logarithmic semitones.
Acoustic Wavelength Equation
λ = v / f
Where v is the speed of sound in air (~343 m/s at room temperature) and f is frequency in Hertz.