There are 1000 kg in a metric tonne.
1000 Kg
The word is "ton". A metric ton is exactly 1000 kilograms. Then there is a ton, defined as 2000 pounds, which is slightly less than that.
1 metric tonne is 1,000kg. As a side note, google is very good for unit for conversion. Just type a unit1 in unit2, eg 100 Parsecs in metres.
5,000 kg