2500kg is 24.517kN
13.5kN is 1,376.6kg
2.0kN is 203.94kg
3.673kg is 0.036kN (rounded).
2500 centigrams = 0.25 kilograms
2500 dekagrams is 25kg
5511.556554625
2500 milligrams = 2.5 grams = .0025 kilograms
You can work this out once you know that there are 1000 grams in a kilogram (the prefix "kilo" means "one thousand").
There are 2500 grams in the 2.5 kilograms.
2500 g = 2.5 kg
2500 grams in 2.5 kilograms.
2,500 mg = 0.0025 kg