55 centimeters equals to 21.6535 inches.
To provide comparisons to known objects of similar size:
1. The average length of a newborn baby’s foot is about 10-12 centimeters, which is approximately half the length of 55 centimeters.
2. An American football has a length of approximately 27 centimeters, which is slightly longer than half of 55 centimeters.
3. A standard computer keyboard has a length of about 46-47 centimeters, which is slightly less than the length of 55 centimeters.
4. The length of a regular skateboard is about 68-70 centimeters, which is almost three times the length of 55 centimeters.
5. The average length of a human arm from the elbow to the wrist is around 45 centimeters, which is slightly less than the length of 55 centimeters.