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

Distance from Cornwall, ON to Longlac, ON

Distance

1,263 km

Time

18 hours 11 mins

Gas Cost

$95 - $229

There are 1,032.44 km (641.53 miles) from Cornwall to Longlac in northwest direction and 1,263.34 km (785 miles) by car, following the 11 route.

Cornwall and Longlac are 18 hours 11 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Longlac, ON. The halfway point is Tarzwell, ON.

Cornwall, ON and Longlac, ON are in the same time zone (EDT). Current time in both locations is 8:49 pm.

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 Longlac, 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 112.42 liters of gas to cover the route between Cornwall, ON and Longlac, ON.

The estimated cost of gas to go from Cornwall to Longlac is $169.75.

During the route, an average car will release 2,688.98 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 Longlac, ON

If you want to meet halfway between Cornwall, ON and Longlac, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.928684 and -79.979698, or 47º 55' 43.2624" N, 79º 58' 46.9128" W. This location is 392.43 miles away from Cornwall, ON and Longlac, ON and it would take approximately 9 hours 5 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Tarzwell, ON, situated 428 miles from Cornwall, ON and 362 miles from Longlac, ON. It would take 8 hours 18 mins to go from Cornwall to Tarzwell and 6 hours 49 mins to go from Longlac to Tarzwell.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	641.53 mi	1,032.44 km	557.47 nautical mi
Driving distance	785 mi	1,263.10 km	682.02 nautical mi

Road Trip Tips