How big is a bottlenose dolphin?

Adults are usually two to four meters long. That is 3 m (9.8 ft) long.

3 m long · 9.8 ft

Adults are usually two to four meters long.

Average person 1.7 m

Bottlenose dolphin 3 m

Bottlenose dolphin next to average person, drawn to scale.

Compared with things you know

A bottlenose dolphin is about 20× the height of a Smartphone Smartphone: 15 cm
A bottlenose dolphin is about 1.8× the height of an average person Average person: 1.7 m
A bottlenose dolphin is about 1.5× the height of a basketball player Basketball player: 2 m
A bottlenose dolphin is about 1.5× the height of a door Door: 2.03 m

Think you could size it by eye? A bottlenose dolphin is one of the objects in Sizedle.