88 keys

A to C

7- 1/4 octaves

7 white notes and five black notes to an octave

52 white Notes and 36 black Notes make up the keyboard

Unless you have a Bosendorfer piano - then you have up to 97 Notes

~If you have come here to find a key to unlock your piano please visit our online shop piano Keys and Locks department
For more information on piano keys and piano compass or visit our Piano Discussion Forums
For pub quiz answers on the piano