How big is an ostrich?

The largest living bird, up to 2.7 meters tall. That is 2.7 m (8.9 ft) tall.

2.7 m tall · 8.9 ft

The largest living bird, up to 2.7 meters tall.

Average person 1.7 m

Ostrich 2.7 m

Ostrich next to average person, drawn to scale.

Compared with things you know

An ostrich is about 18× the height of a Smartphone Smartphone: 15 cm
An ostrich is about 1.6× the height of an average person Average person: 1.7 m
An ostrich is about 1.4× the height of a basketball player Basketball player: 2 m
An ostrich is about 1.3× the height of a door Door: 2.03 m

Think you could size it by eye? An ostrich is one of the objects in Sizedle.