How long is the Canadarm in humans?

The Canadarm is 15.2 m long, the same as 8.94 average adults (1.70 m) stacked head to toe.

Canada's robotic arm for the Space Shuttle; it flew on 90 missions.

Measured end to end, lying down. Source.

Things about the same size

• ⭕ Quidditch goal hoop 8.94 humans
• 🛩️ F-16 Fighting Falcon 8.86 humans
• 🛡️ Armored Titan 8.82 humans
• 👹 Attack Titan (Eren) 8.82 humans
• 🐍 Basilisk 8.82 humans
• 🧗 Olympic speed climbing wall 8.82 humans

More space

• 💿 Voyager Golden Record 0.18 humans
• 🚁 Ingenuity helicopter rotor 0.71 humans
• ☄️ Hoba meteorite 1.59 humans
• 🚗 Starman's Tesla Roadster 2.32 humans
• 🔭 Keck telescope mirror 5.88 humans
• 📡 Very Large Array dish 14.7 humans
• 📡 FAST radio telescope 294 humans
• 🌑 Deimos (moon of Mars) 7,294 humans