A metric tonne, or tonne (t), is 1000 kg, or roughly 2200 pounds.
tonne = metric ton , just different names , the spelling 'tonne' was introduced to differentiate from the old ton, now in most countries ton is metric regardless of spelling
You don't, they are the same thing.
They are the same thing. One tonne is 1 metric tonne.
One.
Metric tons and metric tons have the same magnitude, so a value in metric tons is already a value in metric tons.
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