Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert weight values from carats to tonnes and tonnes to carats.
1 tonne = 5000000 carats
1 carat = 2.0E-7 tonnes
The symbols used are ct for carat and t for tonne.
Convert 150 carats to tonnes
150 ct = 150*2.0E-7 t = 3.0E-5 t