Unit Conversions & Number Systems
Fast, correct answers to the everyday conversion questions — tonnes to kilograms, billions to millions — with the method shown so you can do the next one yourself.
Conversions & Units concepts
1 Ton to Kg
1 tonne (the metric ton) equals 1,000 kilograms. To convert any number of metric tonnes to kilograms, multiply by 1,000. (A US 'short ton' is 907.18 kg and a UK 'long ton' is 1,016.05 kg.)
1 Billion in Million
1 billion equals 1,000 million. In figures, 1 billion is written 1,000,000,000 (a 1 followed by nine zeros) and 1 million is 1,000,000 (six zeros). To convert billions to millions, multiply by 1,000.