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Beginner & Practice6 min read

Why Piano Fingering Is Personal: Hand Size Changes Everything

The fingering in the book was written for someone else's hand. Here is why it has to be personal.

Open two editions of the same piece and the fingering will often disagree. That is not sloppiness — it is because there is no single correct fingering. It depends on your hand, your tempo, what you played before the bar, and what you are practising for. The biggest variable, and the one editions can never know, is the size of *your* hand.

Reach decides everything

Fingering is a chain of small physical choices, and every one of them starts with how far your hand can comfortably span:

  • A large hand can hold a wide chord under five fingers and keep the hand still. A smaller hand has to roll it, or shift.
  • Where a large hand plays a passage in one position, a smaller hand adds a thumb-under or a position change — more moving parts, but far less strain.
  • A stretch that is easy for one player is an injury risk for another. "Just reach it" is not fingering advice; it is how people hurt their hands.
  • So a fingering optimised for a 9th-reaching hand can be actively wrong for someone who comfortably reaches a 6th — even though both are playing the notes correctly.

    Why the printed fingering often fights you

    Editorial fingering is usually set by an editor with a large, trained hand, aiming at a concert tempo. If your hand is smaller, or you are learning the piece slowly, the "official" fingering can be the *hardest* option for you. That is why re-pencilling fingering is such a common — and tedious — part of learning a piece.

    Personalised fingering, without the pencil

    This is exactly why the Piano Fingering Generator asks your hand size first. Choose from XXS to XXL, and the suggestions change accordingly:

  • Smaller sizes trade wide stretches for more position shifts and thumb-unders.
  • Larger sizes keep the hand still and hold wider shapes.
  • Change your mind and re-suggest at a different size, and the whole piece re-fingers in a second. Then you adjust any note by hand — because the physical part a computer can do, but judging what *feels* right stays with you.

    How to find your size

    Sit at the piano, relax your hand, and see the widest interval you can play cleanly between thumb and little finger without tension:

  • Around a 6th → XXS–XS
  • A 7th → S
  • A comfortable octave → M
  • A 9th → L
  • A 10th or more → XL–XXL
  • Pick that size in the tool and the fingering starts from *your* reach, not a stranger's.

    Related

  • Add finger numbers to sheet music
  • The standard fingering patterns, explained
  • Get a fingering that fits your hand with the free Piano Fingering Generator.

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