It's about as tall as a Giraffe.
It's about nine-tenths as long as a London bus.
In other words, 879 barleycorns is 0.888 times the length of a London bus, and the length of a London bus is 1.13 times that amount.(Routemaster Double-Decker, RM standard specification)
It's about two-thirds as tall as a Telephone Pole.
In other words, the height of a Telephone Pole is 1.5 times 879 barleycorns.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
It's about three-fifths as tall as a Brachiosaurus.
In other words, 879 barleycorns is 0.57 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 1.8 times that amount.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 1,500 barleycorns. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.
It's about one-and-four-fifths times as long as a Beetle (Volkswagen).
In other words, 879 barleycorns is 1.825 times the length of a Beetle (Volkswagen), and the length of a Beetle (Volkswagen) is 0.5479 times that amount.(1964 model) (a.k.a. Volkswagen 1200, a.k.a. Käfer)
It's about half as long as a Semitrailer.
In other words, 879 barleycorns is 0.5087 times the length of a Semitrailer, and the length of a Semitrailer is 1.966 times that amount.
It's about half as tall as The Hollywood Sign.
In other words, the height of The Hollywood Sign is 2 times 879 barleycorns.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)