definitions and explanations Small discrepancies in totals are generally due to the rounding of components.     zero is used to denote nil or a negligible amount.   p denotes a preliminary figure.   s denotes an ABARE estimate. common abbreviations and conversions   kg kilogram 2.20462 lb (pounds)   t tonne 1000 kilograms   kt kilotonne 1000 tonnes   Mt megatonne 1 000 000 tonnes   mtu metric ton unit 10 kilograms   c metric carat   L litre 1.761 pints   kL kilolitre 1000 litres   ML megalitre 1 000 000 litres   Mm3 million cubic metres 1 000 000 cubic metres   bbl barrel 159 litres   oz troy ounce 0.031 kilograms   $m million dollars (Australian)   fob free on board   for free on rail   fot free on truck   cif cost, insurance and freight