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

Distance from Mountain, ON to Cornwall, ON

Distance

82 km

Time

1 hour 9 mins

Gas Cost

$6 - $15

There are 60.10 km (37.34 miles) from Mountain to Cornwall in east direction and 82.08 km (51 miles) by car, following the 401 route.

Mountain and Cornwall are 1 hour 9 mins far apart, if you drive non-stop .

This is the fastest route from Mountain, ON to Cornwall, ON. The halfway point is Morrisburg, ON.

Mountain, ON and Cornwall, ON are in the same time zone (EDT). Current time in both locations is 9:26 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Mountain, ON

Planning on renting a car to go from Mountain, ON to Cornwall, ON? 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 7.29 liters of gas to cover the route between Mountain, ON and Cornwall, ON.

The estimated cost of gas to go from Mountain to Cornwall is $11.01.

During the route, an average car will release 174.35 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.

Halfway Point Between Mountain, ON and Cornwall, ON

If you want to meet halfway between Mountain, 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 44.939144 and -75.141281, or 44º 56' 20.9184" N, 75º 8' 28.6116" W. This location is 25.44 miles away from Mountain, ON and Cornwall, ON and it would take approximately 34 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Morrisburg, ON, situated 24 miles from Mountain, ON and 29 miles from Cornwall, ON. It would take 36 minutes to go from Mountain to Morrisburg and 33 minutes to go from Cornwall to Morrisburg.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	37.34 mi	60.10 km	32.45 nautical mi
Driving distance	51 mi	81.90 km	44.22 nautical mi

Road Trip Tips