Distance between cities › Canada › Ontario › Cornwall, ON › Distance from Cornwall to Wiarton Book Hotels

Distance from Cornwall, ON to Wiarton, ON

Distance

641 km

Time

8 hours 31 mins

Gas Cost

$48 - $116

There are 505.90 km (314.35 miles) from Cornwall to Wiarton in west direction and 640.52 km (398 miles) by car, following the 401 route.

Cornwall and Wiarton are 8 hours 31 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Wiarton, ON. The halfway point is Grafton, ON.

Cornwall, ON and Wiarton, ON are in the same time zone (EDT). Current time in both locations is 10:58 am.

Any questions or tips to share?

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Lowest Price Rental Cars in Cornwall, ON

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

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 57.04 liters of gas to cover the route between Cornwall, ON and Wiarton, ON.

The estimated cost of gas to go from Cornwall to Wiarton is $86.13.

During the route, an average car will release 1,364.38 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 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, ON and Wiarton, ON

If you want to meet halfway between Cornwall, ON and Wiarton, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.997147 and -78.080376, or 43º 59' 49.7292" N, 78º 4' 49.3536" W. This location is 199.12 miles away from Cornwall, ON and Wiarton, ON and it would take approximately 4 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Grafton, ON, situated 193 miles from Cornwall, ON and 207 miles from Wiarton, ON. It would take 3 hours 12 mins to go from Cornwall to Grafton and 3 hours 57 mins to go from Wiarton to Grafton.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	314.35 mi	505.90 km	273.16 nautical mi
Driving distance	398 mi	640.89 km	346.05 nautical mi

Road Trip Tips