An ice floe is any contiguous piece of sea ice. Floes are subdivided according to horizontal extent.

Floe giant

Over 10 km across.

Floe vast

2–10 km across.

Floe big

500–2,000 m across.

Floe medium

100–500 m across.

Floe small

20–100 m across.

Ice cake

Less than 20 m across.

Small ice cake

Less than 2 m across.