litre - gallon, kilometre - ?

MILE
List of words for the clue litre - gallon, kilometre - ? from the crossword:
POUND KILOGRAM INCH CENTEMETRE ACRE YARD METRE LITER UNIT PETROL MARATHON KM KLICK KILOMETER HECTARE RETAIL MAGNUM L PINTS
WordClue
ACRElitre - gallon, hectare - ?
INCHlitre - gallon, centemetre - ?
UNITcarat or gallon
YARDlitre - gallon, metre - ?
LITREmile - kilometre, gallon - ?
METREgallon - litre, yard - ?
POUNDlitre - gallon, kilogram - ?
GALLONkilometre - mile, litre - ?
HECTAREmile - kilometre, acre - ?
KILOGRAMgallon - litre, pound - ?
MARATHON42.195 kilometre road race
KILOMETREgallon - litre, mile - ?
CENTEMETREgallon - litre, inch - ?
POUNDlitre - gallon, kilogram - ?
YARDlitre - gallon, metre - ?