there is a 1000 kgs in one metric tonne if you have 3630kgs 3630 / 1000 = 3.630 tonne :)
1 kilogram = 1/1000 metric tons. To convert a value in kilograms to metric tons, divide by 1000.
1 kilogram is equal to 1000grams, 1 thousand kilograms is equal to 1 tonne
1 ton = 1000 kg so just divide 1000 from whatever tonnes and you'll get kilograms
You don't, they are the same thing.