1cm {Ans: 10mm}1 pound {Ans: 16 ounces}1cm3 {Ans: 1ml}1 litre {Ans: 1000cm3}1 gallon {Ans: 4.5 litres}1 foot {Ans: 30 cm}1 tonne {Ans: 1000kg}1 yard {Ans: 3 feet}1 litre {Ans: 1000ml}1 mile {Ans: 1.6km}1 foot {Ans: 12 inches}1kg {Ans: 1000g}1 gallon {Ans: 8 pints}1kg {Ans: 2.2 pounds}1km {Ans: 1000m}1 stone {Ans: 14 pounds}1m {Ans: 100cm}