D5
Reviewed for accuracy · Maintained by Justin Evans
D5 highlighted — use the view toggle to see all 88 keys.
Piano key
54 of 88
Octave
5
Frequency
587.33 Hz
MIDI number
74
Key color
White key
Pitch class
D · C## · Ebb
What is D5?
D5 is the D in octave 5 — the 54th key of the 88 on a full-size piano, counted from the bottom. In standard tuning it sounds at 587.33 Hz. It sits 14 half-steps above middle C (C4).
To find it, locate any group of two black keys: the white key just to their left is a C. Count up from middle C (C4) 1 octave to reach octave 5, then step to D.
Every octave doubles the frequency: the D one octave up sounds at 1174.66 Hz and the one below at 293.67 Hz. The same piano key can be written as D, C##, Ebb depending on the musical context — same sound, different spelling.
Nearby notes
Every D on the keyboard: