Note Frequency Chart

The table below gives note frequencies in Hz when using an even tempered scale of A = 440 Hz
Octaves are in the left column, notes in the top row.

To find middle C look at the ‘C’ column and the octave ‘4’ row
Middle C is 261.6 Hz

CC#DEbEFF#GG#ABbB
016.3517.3218.3519.4520.621.8323.1224.525.9627.529.1430.87
132.734.6536.7138.8941.243.6546.254951.915558.2761.74
265.4169.373.4277.7882.4187.3192.598103.8110116.5123.5
3130.8138.6146.8155.6164.8174.6185196207.7220233.1246.9
4261.6277.2293.7311.1329.6349.2370392415.3440466.2493.9
5523.3554.4587.3622.3659.3698.5740784830.6880932.3987.8
6104711091175124513191397148015681661176018651976
7209322172349248926372794296031363322352037293951
8418644354699497852745588592062726645704074597902