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

Floe giant

Over 10km across.

Floe vast

2–10km across.

Floe big

500–2000m across.

Floe medium

100–500m across.

Floe small

20–100m across.

Ice cake

Less than 20m across.

Small ice cake

Less than 2m across.