Size (cm) and body mass (kg):

N.B. All figures are from FAO (Food and Agriculture Organisation)
unless otherwise stated.

Figures for females were assumed to be obtained during nesting.
SCL = Straight Carapace Length
CCL = Curved Carapace Length

Min. and Max. recorded sizes for adults:

Min: (at maturity) 78 cm (SCL?) Solomons.
Max: 139.5 cm (CCL) Ascension Island.

n.b. CCL gives a figure which is approximately 3-4 cms longer than SCL.

World variation: (mean) figures, unless stated, are for mature females.

      Surinam          112cm     Pritchard (1979)
      Ascension Island 108cm     Carr and Hirth (1962)
      Guyana           107cm     Pritchard (1979)
      Aldabra          103cm     Frazier (1971)
      Florida          101cm     Ehrhart (1979)
      Costa Rica       100cm     Carr and Hirth (1962)
      Yemmen           96cm      Hirth (1971)
      Sarawak          95cm      Hendrickson (1958)
      Turkey(Cukurova) 90cm      Geldiay & Koray (1982)
      Turke (Mersin)   95cm      Baran,Durmas & Atatur (1988)
      N.Cyprus         92cm      Broderick & Godley (1992-95)

      Yemen       71-104 cm      (FAO) for males,
                                 which are generally smaller

      Most figures taken from a paper by LM Ehrhart (1984?).
     

Overall body mass in Kg:

This varies considerably according to size, age and native population. In general the mass of a mature turtle ranges from 90 Kg to over 180 Kg

      Australia        186 kg    FAO
      Solomons         89.9 kg   FAO
      Surinam          235 kg    FAO

      West Indies      395 kg    FAO Claim from the 1960's ! 
                                 (CCL - 150 cms) 
        West Indies figures are unconfirmed and unsexed