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

Distance from Cornwall, ON to Thamesville, ON

Distance

696 km

Time

8 hours 33 mins

Gas Cost

$53 - $126

There are 642.81 km (399.42 miles) from Cornwall to Thamesville in southwest direction and 696.85 km (433 miles) by car, following the 401 route.

Cornwall and Thamesville are 8 hours 33 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Thamesville, ON. The halfway point is Newtonville, ON.

Cornwall, ON and Thamesville, ON are in the same time zone (EDT). Current time in both locations is 7:45 am.

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Thamesville, 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 61.99 liters of gas to cover the route between Cornwall, ON and Thamesville, ON.

The estimated cost of gas to go from Cornwall to Thamesville is $93.60.

During the route, an average car will release 1,482.69 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 Thamesville, ON

If you want to meet halfway between Cornwall, ON and Thamesville, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.947826 and -78.418182, or 43º 56' 52.1736" N, 78º 25' 5.4552" W. This location is 216.38 miles away from Cornwall, ON and Thamesville, ON and it would take approximately 4 hours 16 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Newtonville, ON, situated 216 miles from Cornwall, ON and 218 miles from Thamesville, ON. It would take 3 hours 35 mins to go from Cornwall to Newtonville and 3 hours 42 mins to go from Thamesville to Newtonville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cornwall, ON and Thamesville, ON is Oshawa, ON, situated 237 miles from Cornwall, ON and 200 miles from Thamesville, ON. It would take 3 hours 56 mins to go from Cornwall to and 3 hours 25 mins to go from Thamesville to Oshawa.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	399.42 mi	642.81 km	347.09 nautical mi
Driving distance	433 mi	696.47 km	376.06 nautical mi

Road Trip Tips