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

Distance from Cornwall, ON to Prince William, NB

Distance

846 km

Time

11 hours 15 mins

Gas Cost

$64 - $153

There are 606.75 km (377.02 miles) from Cornwall to Prince William in east direction and 844.91 km (525 miles) by car, following the I-95 route.

Cornwall and Prince William are 11 hours 15 mins far apart, if you drive non-stop .

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

Please note the time difference between Cornwall, ON and Prince William, NB is 1 hour. The current time in Cornwall is 7:36 am and the current time in Prince William is 8:36 am.

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Prince William, 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 75.25 liters of gas to cover the route between Cornwall, ON and Prince William, NB.

The estimated cost of gas to go from Cornwall to Prince William is $113.63.

During the route, an average car will release 1,799.98 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 5, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, ON and Prince William, NB

If you want to meet halfway between Cornwall, ON and Prince William, NB or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.127838 and -70.419766, or 45º 7' 40.2168" N, 70º 25' 11.1576" W. This location is 262.69 miles away from Cornwall, ON and Prince William, NB and it would take approximately 5 hours 37 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	377.02 mi	606.75 km	327.62 nautical mi
Driving distance	525 mi	845.50 km	456.54 nautical mi

Road Trip Tips