A ballerina stands taller than a swan. While the swan is about 3.94 ft (1.2 m) long and 3.28 ft (1 m) tall, the ballerina is about 5.41 ft (1.65 m) tall. Ballerina is about 1.38 times the size of swan.

How much space each takes up
Ballerina is about 1.38 times the size of swan.
Typical adult or standard sizes; real ones vary.