5 differences between mass and weight : 1. Mass is the amount of total particles present in an object , on the other hand weight is the amount of earth's attraction to the object. 2. Mass does not change from place to place , weight may change from place to place. 3. The unit of weight is Newton , the unit of mass is kilogram. 4. Mass is the basic quantity , weight is the quantity obtained. 5. General nikti is used for measuring mass , but spring nikti is used for measuring weight.