For most things, YES, Miami, Florida is more expensive than Toronto, Canada.
It currently costs approximately 19% more to live in Miami than it does in Toronto with Miami placed 59th in the US and Toronto 6th in Canada and 71st and 261st on the list of the most expensive cities in the world.
In both Miami and Toronto, a month and a half of living expenditures may be covered by the average salary after taxes but Miami is regarded as the 18th best city to live in the United States, while Toronto is ranked as the 3rd best place to live in Canada. Internationally, these two cities are ranked as the 102nd and 31st best cities to live in.
To maintain the same level of living as possible with $7,100.00C$ in Toronto, you would need roughly $8,673.04C$ (6,711.37$) in Miami, Florida and to get to these numbers, we factored in not only the cost of living but also the cost of renting comparable accommodation.