B3 frequency
In standard tuning (A4 = 440 Hz), B3 is 246.94 Hz. It's MIDI note 59 and key 39 of 88 on a piano.
| Frequency | 246.94 Hz |
| Period | 4.050 ms |
| Wavelength in air | 1.39 m |
| One octave down | B2 · 123.47 Hz |
| One octave up | B4 · 493.88 Hz |
| At A4 = 432 Hz | 242.45 Hz |
B3 is within the usual range of piano, guitar, bass guitar, violin, viola, cello, trumpet, a bass voice, a tenor voice and an alto voice.
See every note on the note frequency chart, or train your ear to recognise notes like this one in the course.
Questions
What is the frequency of B3?
246.94 Hz in standard tuning, where A4 is 440 Hz.
What is B3 at 432 Hz tuning?
If A4 is tuned to 432 Hz, B3 becomes 242.45 Hz.
Which octave is B3 in?
Octave 3. Octaves are numbered from C, so B3 sits below middle C (C4).
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