Vessel sizes:

Deadweight tons (DWT)

GP

General Purpose

16,500 ?24,999

MR

Medium Range

25,000 ?44,999

LR1

Large/Long Range1

45,000 ?79,999

LR2

Large/Long Range 2

80,000 ?159,999

Aframax

75,000 ?110,000

Suezmax

110,000 ?150,000

VLCC

Very Large Crude Carrier

160,000 ?319,999

ULCC

Ultra Large Crude Carrier

320,000 ?549,000

Capesize: Any vessel, usually carrying dry bulk cargoes, that is too big to navigate the Panama or Suez Canals.