It's about fourteen times as big as a Concrete Mixer Truck.
In other words, the size of a Concrete Mixer Truck is 0.071 times 215.31 perches.(a.k.a. cement mixer, a.k.a. cement mixer truck, a.k.a. cement transport truck, a.k.a. concrete mixer, a.k.a. concrete transport truck, a.k.a. in-transit mixer)(standard size; drum capacity)
It's about one-fifteenth as big as a Hot Air Balloon.
In other words, the size of a Hot Air Balloon is 14 times 215.31 perches.(four-person capacity; envelope volume; average)
It's about one-fifteenth as big as an Olympic Swimming Pool.
In other words, the size of an Olympic Swimming Pool is 17 times 215.31 perches.(FINA regulation; (minimum capacity)
It's about one-fortieth as big as The Goodyear Blimp.
In other words, 215.31 perches is 0.0263 times the size of The Goodyear Blimp, and the size of The Goodyear Blimp is 38 times that amount.(for GZ-20A) The Goodyear GZ-20 model Blimp measures 8,190 perches in total volume. A December, 1929 college football game between the University of Florida Gators and the University of Oregon Webfoots (later the University of Oregon Ducks) began with the blimp dropping a parachute-equipped ball from a height of 61 m (200 ft) to the field below.
It's about one-one-hundred-fiftieth as big as The Lincoln Memorial Reflecting Pool.
In other words, 215.31 perches is 0.00589 times the size of The Lincoln Memorial Reflecting Pool, and the size of The Lincoln Memorial Reflecting Pool is 170 times that amount.(Washington, D.C.)
It's about 200 times as big as a Hot Tub.
In other words, 215.31 perches is 210 times the size of a Hot Tub, and the size of a Hot Tub is 0.00476 times that amount.(for Lifesmart Rock Solid Simplicity Plug and Play 4 Person Spa With 12 Jets) (a.k.a. Spa, a.k.a. Jacuzzi, a.k.a. Whirlpool) (Advertised Capacity)
An average, four-person hot tub holds 1.03 perches of water. Modern hot tubs became popular outside of Japan starting in about 1940.
It's about one-two-hundred-fiftieth as big as The Capitol Rotunda (US).
In other words, the size of The Capitol Rotunda (US) is 240 times 215.31 perches.(formally United States Capitol rotunda) (Washington, D. C.) (total chamber volume)