Short answer: Sit on the front half of the bench with your back upright. Adjust the height so your forearms are level with the keys or slope slightly downward towards them.
Good piano posture starts before you play a single note. Sitting incorrectly can limit your movement, make your playing feel stiff and quickly create tension in your neck, shoulders and back.
Find the Right Height and Distance
Bench height is one of the most important factors. When your hands rest on the keyboard, your elbows should be roughly level with the keys or slightly higher.
If your elbows hang well below the keyboard, you’re sitting too low and may end up pulling down on the keys. If you’re sitting too high, your shoulders and neck may become tense.
Your distance from the piano is correct when you can reach both the lower and upper registers without leaning forward or fully straightening your arms. Your elbows should remain gently bent and relaxed beside your body.
Use Your Feet for Support
Sit on the front half of the bench rather than leaning back as if you were in an armchair. This gives you more freedom to move.
Keep both feet firmly supported on the floor or positioned naturally near the pedals. Your feet act as an anchor for the rest of your body. If they are hanging in the air or crossed under the bench, your upper body has to work harder to stay balanced.
A stable, relaxed sitting position makes it easier to play with control and helps reduce unnecessary tension during longer practice sessions.