What has greater mass 2240 pounds or 1000 Kg?

lbs is a measure of weight, and kg is a measure of mass.

• Weight is a measure of downward force (gravity)
• Mass is a measure of the total "building blocks" of an object, or that object's resistance to acceleration

Since weight and mass are two totally different things, in order to know how much mass is in an object provided it's weight, we also need to know what level of gravity is involved.

From here forward, we will assume the object in question is at "sea level"

1 kilogram = 2.2046226 pounds

1000 kg = 2204.6226 lbs

So : 2240lbs = 1016.0469kg

In conclusion in your question, an object at sea level weighing 2240 lbs has greater mass of 1016.0469kg, which is greater than 1000 kg.