Piano Key Number Chart
All 88 keys numbered 1–88 from the bottom · note name, octave, MIDI number & frequency · landmarks and a key-number quiz
How to play
- Landmarks jumps to the keys worth memorising: middle C is key 40, concert A (440 Hz) is key 49, the bottom key is A0 = key 1 and the top is C8 = key 88. Tap a landmark again to clear it.
- Start quiz calls out a key number and asks you to find it. Miss one and the correct key flashes yellow before the next question.
- A standard piano has 52 white keys and 36 black keys. Numbering counts every key, black ones included, from the bottom — so key 1 is A0 and key 2 is the B♭ just above it.
- Every key carries its number: the lowest key (A0) is 1 and the top key (C8) is 88. Piano specs, MIDI charts and tuning software all refer to keys this way — middle C is key 40 and A440 is key 49.
- Tap any key to hear it and see its full name (letter + octave number).
- Pick a note above the keyboard to light up every key with that name across the octaves.
- White keys are the natural notes C D E F G A B; the black keys are the sharps/flats between them — grouped in 2s and 3s.
- A full piano has 88 keys from the lowest A0 to the highest C8 — 52 white and 36 black. The number after a letter is the octave; C4 is middle C. Scroll sideways to reach the ends. Vol sets volume.
- Keyboard — Tab to a key or control, Enter/Space to activate. Scroll the keys sideways on small screens.
Explore all of the keys on an ordinary 88 key piano in this interactive chart. Use it to test your familiarity with piano key numbers. Clicking around on the keyboard also allows you to try out playing the notes on there. It’s a visual way of understanding where each note is in relation to its name and actual physical key.
The display include a numbered keyboard, where each note is given its number between 1 and 88. That means that it is counting every single note (including the black ones) beginning with A0 as the lowest note. As you can see, middle C are Key 40 and the concert pitch of A440 is Key 49. This gives you some interesting points of reference when looking at tuning software and piano specs.
How to Use This Piano Chart
Simply click on any note to hear what it sounds like, and complete name of the note appears beneath the keyboard. For exact reference, the hertz value also shown on screen.
The Landmarks button enables you to instantly jump to key landmarks on the keyboard. For example, clicking Middle C will highlight key 40 whereas Concert A will highlight the tuning standard at key 49. Other options includes highlighting all C keys to understand their pattern. You can also mark the highest note (C8) or the lowest (A0). It’s great for quickly finding your way if you are learning about the instrument. Simply tap any landmark again to remove the highlight and return it to normal view.
There is a built-in key number quiz to help you practice your recall. Simply click start quiz, and the widget will ask you to find one of the key numbers. You then tap the key on the piano that has that number. If you get it wrong the correct key flashes up yellow so you know where it is. This game mode would of help you learn the position of keys on the piano without having a real piano available.
The Find note control highlights any note on the keyboard you choose. Simply click on a letter name and all occurrences of that note is highlighted from bottom to top. This makes it easier to grasp how patterns repeat and what the keyboard layout are like with its octaves. The buttons are clustered in pairs for sharps and flats so they’re easily accessible. Selecting another note, or clicking the same button again remove the selection.
Use the control panel to adjust the overall volume of playing notes with the slider. This is the master volume. On small screens, you can scroll left or right for access to the furthest ends of the keyboard’s range (i.e. Very high and low notes). It’s a fully responsive piano keyboard that fit easily onto any device. The keyboard can be made bigger by clicking on the fullscreen icon, which then fills your screen, making it possible to read the keys more clearly. To get out of fullscreen mode, click the same button or press the Escape key.
For those who prefer keyboard shortcuts, the interface is fully accessible via the Tab and Enter keys.
Tap some of the random keys and listen out for range of this instrument. There is also a quiz that tests your recall of where the keys are on the keyboard. You can also highlight all the C’s and look at how they sits alongside the pairs of black keys. This helps you learn the arrangement of piano without needing to know any music theory first.
Get playing now. Explore the piano keys yourself in time.