- Width: 40-45 inches (102-114 centimeters)
- Height: 28-32 inches (71-81 centimeters)
- Depth: 20-24 inches (51-61 centimeters)
These measurements are approximate and can vary among different models and brands of children's pianos. It is important to consider the size of the piano in relation to the child's age, height, and arm reach to ensure a comfortable playing experience.