1 gramme = 0,035 once
1 kilogramme = 2,205 livres
1 tonne métrique (1000kg) = 2204,600 livres
1 once = 28,35 grammes
1 livre = 453,59 grammes
1 tonne courte (2000 lbs) = 907,18 kilogramme
1 tonne longue (2240 lbs) = 1016,05 kilogrammes
