To convert kilogrammes to tonnes divide by 1000. I've generated some hopefully helpful examples randomly below, as with most random sentences please excuse the repetitive and occasionally comic outcomes.

You have 720 kilogrammes of beetroot but you need to know how many tonnes that is. To get the answer divide by 1000 which gives you 0.72 tonnes.

How many tonnes of carrots are there in 410 kilogrammes? Just divide by 1000 to get the answer of 0.41 tonnes.

You've got 130 kilogrammes of oats but someone only wants to buy that in units of tonnes, to change the units divide by 1000. Now you have 0.13 tonnes.

In 950 kilogrammes of onions there are 0.95 tonnes, to achieve this take 950 and just divide by 1000.