A Natural minor — Left Hand Piano Fingering
See the standard fingering for any major or minor piano scale on an interactive keyboard — right hand, left hand, one or two octaves, with thumb-under crossings marked.
A — Natural minor
Left hand
↷ — finger crosses over the thumb
Descending uses the same fingers in reverse order.
About this tool
This left-hand-only chart for A Natural minor mirrors C major's shape note for note in a different color: the pinky opens the tonic, the hand walks down to the thumb, and the third finger crosses over onto E with no black key anywhere in the way.
A minor is a good scale for building the habit of an even crossover, precisely because there is no accidental to blame for a stumble — any unevenness here is really about the hand, not the key signature.
Isolate the left hand until the crossover is level with the right hand's timing, then move to the right-hand-only chart for A minor or the full tool to combine them.
Example. C major in the right hand for one octave shows the finger numbers 1 2 3 1 2 3 4 5. The default two-octave right hand continues 1 2 3 1 2 3 4 1 2 3 1 2 3 4 5.
Limit. Fingerings are the stored one-octave charts for major and the three minor forms, not a custom editorial fingering you type in. The octave control is only 1 or 2.