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

Distance from Ottawa, ON to Cornwall, ON

Distance

103 km

Time

1 hour 28 mins

Gas Cost

$8 - $19

There are 87.84 km (54.58 miles) from Ottawa to Cornwall in southeast direction and 103.00 km (64 miles) by car, following the 417 route.

Ottawa and Cornwall are 1 hour 28 mins far apart, if you drive non-stop .

This is the fastest route from Ottawa, ON to Cornwall, ON. The halfway point is Gagnon, ON.

Ottawa, ON and Cornwall, ON are in the same time zone (EDT). Current time in both locations is 5:27 am.

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Lowest Price Rental Cars in Ottawa, ON

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ottawa »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 9.13 liters of gas to cover the route between Ottawa, ON and Cornwall, ON.

The estimated cost of gas to go from Ottawa to Cornwall is $13.78.

During the route, an average car will release 218.34 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 Ottawa, ON and Cornwall, ON

If you want to meet halfway between Ottawa, ON and Cornwall, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.309464 and -75.151527, or 45º 18' 34.0704" N, 75º 9' 5.4972" W. This location is 31.87 miles away from Ottawa, ON and Cornwall, ON and it would take approximately 44 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Gagnon, ON, situated 29 miles from Ottawa, ON and 42 miles from Cornwall, ON. It would take 32 minutes to go from Ottawa to Gagnon and 54 minutes to go from Cornwall to Gagnon.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	54.58 mi	87.84 km	47.43 nautical mi
Driving distance	64 mi	102.56 km	55.38 nautical mi

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