Distance between cities › Canada › New Brunswick › Debec, NB › Distance from Debec to Cornwall Book Hotels

Distance from Debec, NB to Cornwall, ON

Distance

787 km

Time

10 hours 38 mins

Gas Cost

$59 - $143

There are 560.16 km (348.07 miles) from Debec to Cornwall in southwest direction and 786.97 km (489 miles) by car, following the I-95 route.

Debec and Cornwall are 10 hours 38 mins far apart, if you drive non-stop .

This is the fastest route from Debec, NB to Cornwall, ON.

Please note the time difference between Debec, NB and Cornwall, ON is 1 hour. The current time in Debec is 11:31 am and the current time in Cornwall is 10:31 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Debec, NB to Cornwall, ON:

Lowest Price Rental Cars in Debec, NB

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Debec »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 70.04 liters of gas to cover the route between Debec, NB and Cornwall, ON.

The estimated cost of gas to go from Debec to Cornwall is $105.76.

During the route, an average car will release 1,675.40 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 Debec, NB and Cornwall, ON

If you want to meet halfway between Debec, NB 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 45.342752 and -70.666459, or 45º 20' 33.9072" N, 70º 39' 59.2524" W. This location is 244.51 miles away from Debec, NB and Cornwall, ON and it would take approximately 5 hours 19 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Marston, QC, situated 282 miles from Debec, NB and 227 miles from Cornwall, ON. It would take 6 hours 12 mins to go from Debec to Marston and 4 hours 59 mins to go from Cornwall to Marston.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	348.07 mi	560.16 km	302.46 nautical mi
Driving distance	489 mi	786.99 km	424.94 nautical mi

Road Trip Tips