How deep is the Kola Superdeep Borehole in humans?

The Kola Superdeep Borehole is 12.26 km deep, the same as 7,213 average adults (1.70 m) stacked head to toe.

Russia. The deepest hole ever dug, only 23 cm wide.

Measured from the surface down. Source.

Things about the same size

• 🌑 Deimos (moon of Mars) 7,294 humans
• ⛈️ Thundercloud 7,059 humans
• 🏁 Le Mans circuit lap 8,015 humans
• 🌊 Mariana Trench 6,432 humans
• ✈️ Plane cruising altitude 6,294 humans
• 🌋 Mauna Kea (base to peak) 6,006 humans

More nature

• 🧊 Largest hailstone 0.12 humans
• 💦 Niagara Falls 30 humans
• 🪨 Uluru 205 humans
• ⛰️ Table Mountain 638 humans
• 🗿 Mount Nemrut 1,255 humans
• 🚢 Titanic wreck 2,235 humans
• 🏔️ Denali 3,641 humans
• ☄️ Halley's Comet nucleus 8,824 humans