Iceberg

Small - 5–15 metres (16–49 ft) - 15–60 metres (49–200 ft)
Medium - 15–45 metres (49–148 ft) - 60–120 metres (200–390 ft)
Large - 45–75 metres (148–246 ft) - 120–200 metres (390–660 ft)
Very Large - Over 75 metres (246 ft) - Over 200 metres (660 ft)