It depends on the route you take but the approximate driving distance (using major roadways) is 178 miles / 286 km.
It's actually 2 1/2 hours going about 120km.
290 km or a little more than 3 hours driving time along the 402 & 403.
The driving distance from Sarnia, ON, Canada to Chicago, IL, USA is 341.64mi / 549.82km
167.89mi / 270.2km
The distance between Sarnia, Ontario and Strathroy, Ontario is about 41.2 road miles or 66.4 km.
The driving distance from Sarnia to Windsor is 72.9 road miles.
141 nautical miles
Driving distance: 186.99 miles / 300.93 kilometers - Time: 3:08 h
Toronto to Sarnia is about 2 and a half hours give or take 15 mins.
Seventy-four (74) is the kilometer distance in Ontario, Canada, from Sarnia to Chatham-Kent. That equals 46 miles and an hour in driving time.
The driving distance is about 25km.
The driving distance from Indianapolis to Toronto is, 440 miles.Source: Time and Date.com