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

Distance from Mountain, ON to Cornwall, PE

Distance

1,223 km

Time

16 hours 30 mins

Gas Cost

$92 - $222

There are 962.86 km (598.29 miles) from Mountain to Cornwall in east direction and 1,223.10 km (760 miles) by car, following the I-395 and ME 9 and ME 15 route.

Mountain and Cornwall are 16 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Mountain, ON to Cornwall, PE. The halfway point between Mountain, ON and Cornwall, PE and the cities along the route are available on this page. Visit www.distance-cities.com for full details including interactive maps and cities along the route.

Please note the time difference between Mountain, ON and Cornwall, PE is 1 hour. The current time in Mountain is 7:17 am and the current time in Cornwall is 8:17 am.

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Lowest Price Rental Cars in Mountain, ON

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mountain »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 108.81 liters of gas to cover the route between Mountain, ON and Cornwall, PE.

The estimated cost of gas to go from Mountain to Cornwall is $164.31.

During the route, an average car will release 2,602.82 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 3, 2026.
Read more about our CO₂ calculation.