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How Big Is an Iguanodon?

An Iguanodon is about 33 ft (10 m) long. That is about 5.8 times as long as the average man is tall. A large plant-eater with thumb spikes, one of the first dinosaurs ever named.

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How big is an Iguanodon compared to the average man?

An Iguanodon is about 5.8 times as long as the average man is tall. An Iguanodon is 5.8× the size of the average man: about 5.8 average men lined up would match it. By volume, about 56 average men would fit inside an Iguanodon.

Iguanodon length in feet, inches, centimeters and meters

An Iguanodon measures:

Unit	Value
Feet and inches	32 ft 10 in
Inches	394 in
Centimeters	1000 cm
Meters	10 m

Iguanodon size facts

Iguanodon was about 9 to 11 meters long.
It was named in 1825, only the second dinosaur to get a name.

How does an Iguanodon compare to other things?

An Iguanodon next to 24 things of similar size, plus some everyday references:

Thing	Size	Compared to Iguanodon
Sun	865,000 miles (1,393,000 km) across	139 million× bigger
Earth	7,920 miles (12,740 km) across	1.27 million× bigger
Mount Everest	5.5 miles (8.849 km)	885× bigger
Eiffel Tower	1,083 ft (330 m)	33× bigger
Hubble Space Telescope	43 ft (13.2 m) long	10 ft (3.2 m) bigger
Titanoboa	43 ft (13 m) long	9 ft 10 in (3 m) bigger
Giganotosaurus	41 ft (12.5 m) long	8 ft 2 in (250 cm) bigger
Tyrannosaurus rex	40 ft (12.3 m) long	7 ft 7 in (230 cm) bigger
School bus	40 ft (12.2 m) long	7 ft 3 in (220 cm) bigger
Whale shark	39 ft (12 m) long	6 ft 7 in (200 cm) bigger
Giant squid	39 ft (12 m) long	6 ft 7 in (200 cm) bigger
Fire truck	39 ft (12 m) long	6 ft 7 in (200 cm) bigger
Therizinosaurus	33 ft (10 m) long	0 pm smaller
Allosaurus	31 ft (9.5 m) long	1 ft 7.5 in (50 cm) smaller
Parasaurolophus	31 ft (9.5 m) long	1 ft 7.5 in (50 cm) smaller
Stegosaurus	30 ft (9 m) long	3 ft 3 in (100 cm) smaller
Triceratops	28 ft (8.5 m) long	4 ft 11 in (150 cm) smaller
Basking shark	26 ft (8 m) long	6 ft 7 in (200 cm) smaller
Carnotaurus	26 ft (8 m) long	6 ft 7 in (200 cm) smaller
Two-story house	26 ft (8 m)	6 ft 7 in (200 cm) smaller
Orca	25 ft (7.5 m) long	8 ft 2 in (250 cm) smaller
Stonehenge	24 ft (7.3 m)	8 ft 10 in (270 cm) smaller
Average man (world)	5 ft 7 in (171 cm)	5.8× smaller
Average woman (world)	5 ft 3 in (159 cm)	6.3× smaller

Where do these numbers come from?

Sizes are typical adult or reported values, rounded for readability. Read how we measure and compare sizes.

Silhouettes from PhyloPic: Iguanodon by Rhiannon Dixon. See credits.