How long is the School ruler in humans?

The School ruler is 30 cm long, the same as 0.18 average adults (1.70 m) stacked head to toe.

A classic ruler is one foot long, close to 30 cm.

Measured end to end, lying down. Source.

Things about the same size

• 🟣 Ditto 0.18 humans
• 🥥 Durian 0.18 humans
• 🦊 Eevee 0.18 humans
• 🥪 Footlong sub 0.18 humans
• 🧙 Garden gnome 0.18 humans
• 🪖 G.I. Joe (original) 0.18 humans

More everyday things

• 🪙 1 euro coin 0.014 humans
• 💿 CD 0.071 humans
• 🎮 Xbox Series X 0.18 humans
• 🪈 Concert flute 0.39 humans
• 💺 Office chair 0.65 humans
• 🥫 Vending machine 1.08 humans
• 🤸 Trampoline 2.53 humans
• 🧵 Bayeux Tapestry 40.2 humans