Distance between cities › Canada › Prince Edward Island › Cornwall, PE › Distance from Cornwall to Sarnia Book Hotels

Distance from Cornwall, PE to Sarnia, ON

Distance

1,853 km

Time

1 day

Gas Cost

$140 - $336

There are 1,557.57 km (967.83 miles) from Cornwall to Sarnia in southwest direction and 1,853.96 km (1,152 miles) by car, following the 401 route.

Cornwall and Sarnia are 1 day far apart, if you drive non-stop .

This is the fastest route from Cornwall, PE to Sarnia, ON.

Please note the time difference between Cornwall, PE and Sarnia, ON is 1 hour. The current time in Cornwall is 8:49 am and the current time in Sarnia is 7:49 am.

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Lowest Price Rental Cars in Cornwall, PE

Planning on renting a car to go from Cornwall, PE to Sarnia, ON? Here there are some offers to rent a car in Cornwall, PE

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cornwall »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 164.96 liters of gas to cover the route between Cornwall, PE and Sarnia, ON.

The estimated cost of gas to go from Cornwall to Sarnia is $249.09.

During the route, an average car will release 3,945.79 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.13 kilograms of CO₂ per kilometer.

Average Canada gas price used for calculation is $1.51 per liter of regular gas. Price last updated on March 5, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, PE and Sarnia, ON

If you want to meet halfway between Cornwall, PE and Sarnia, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.158516 and -72.143738, or 42º 9' 30.6576" N, 72º 8' 37.4568" W. This location is 575.84 miles away from Cornwall, PE and Sarnia, ON and it would take approximately 12 hours to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Cornwall, PE and Sarnia, ON in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	967.83 mi	1,557.57 km	841.02 nautical mi
Driving distance	1,152 mi	1,853.46 km	1,000.79 nautical mi

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