litre - gallon, metre - ?

YARD
List of words for the clue litre - gallon, metre - ? from the crossword:
POUND KILOGRAM ACRE MILE LITER KILOMETRE INCH CENTEMETRE UNIT METER PETROL STERE FOOT RETAIL MAGNUM L PINTS PINT TIME
WordClue
ACRElitre - gallon, hectare - ?
INCHlitre - gallon, centemetre - ?
MILElitre - gallon, kilometre - ?
UNITcarat or gallon
LITREyard - metre, gallon - ?
METREgallon - litre, yard - ?
POUNDlitre - gallon, kilogram - ?
GALLONmetre - yard, litre - ?
HECTAREyard - metre, acre - ?
KILOGRAMgallon - litre, pound - ?
KILOMETREgallon - litre, mile - ?
CENTEMETREgallon - litre, inch - ?
MILElitre - gallon, kilometre - ?
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