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

Distance from Cornwall, ON to Petit Rocher, NB

Distance

928 km

Time

12 hours 24 mins

Gas Cost

$70 - $168

There are 755.54 km (469.47 miles) from Cornwall to Petit Rocher in northeast direction and 928.59 km (577 miles) by car, following the 20 route.

Cornwall and Petit Rocher are 12 hours 24 mins far apart, if you drive non-stop .

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

Please note the time difference between Cornwall, ON and Petit Rocher, NB is 1 hour. The current time in Cornwall is 2:51 am and the current time in Petit Rocher is 3:51 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Petit Rocher, NB? 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 82.63 liters of gas to cover the route between Cornwall, ON and Petit Rocher, NB.

The estimated cost of gas to go from Cornwall to Petit Rocher is $124.78.

During the route, an average car will release 1,976.60 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 5, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, ON and Petit Rocher, NB

If you want to meet halfway between Cornwall, ON and Petit Rocher, NB or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.254706 and -70.199895, or 47º 15' 16.9416" N, 70º 11' 59.622" W. This location is 288.46 miles away from Cornwall, ON and Petit Rocher, NB and it would take approximately 6 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint-Aubert, QC, situated 289 miles from Cornwall, ON and 291 miles from Petit Rocher, NB. It would take 5 hours 51 mins to go from Cornwall to Saint-Aubert and 6 hours 39 mins to go from Petit Rocher to Saint-Aubert.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	469.47 mi	755.54 km	407.96 nautical mi
Driving distance	577 mi	928.47 km	501.34 nautical mi

Road Trip Tips