That's not quite right! Calderas are large volcanic craters formed by the collapse of a volcano's summit after an eruption. They are not volcanoes themselves.

While the largest caldera in Hawaii is the Kilauea caldera (about 2.5 miles wide), the largest volcano in Hawaii (and the world) is Mauna Loa.

Here's a breakdown:

* Volcano: A mountain formed by the eruption of lava and ash.

* Caldera: A large depression formed by the collapse of a volcano's summit after a major eruption.

Let me know if you have any other questions about volcanoes!