Musical frequency (Hertz) calculator

Give frequency in Hertz

Frequency Calculation

Hertz
Cycles per second
440 Hz
Cycle length
seconds/cycle
2.27 msec
Wavelength
Speed of sound = 343 m/s (20 °C, air)
0.78 m
Note
Tuning: A4 = 440 Hz
Deviation
perfect A4 = 440 Hz
0 semitones

On a 88-key piano

References