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

Distance from Grimsby, ON to Cornwall, ON

Distance

517 km

Time

6 hours 16 mins

Gas Cost

$39 - $94

There are 435.92 km (270.87 miles) from Grimsby to Cornwall in northeast direction and 516.60 km (321 miles) by car, following the 401 route.

Grimsby and Cornwall are 6 hours 16 mins far apart, if you drive non-stop .

This is the fastest route from Grimsby, ON to Cornwall, ON. The halfway point is Belleville, ON.

Grimsby, ON and Cornwall, ON are in the same time zone (EDT). Current time in both locations is 8:02 am.

Any questions or tips to share?

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Lowest Price Rental Cars in Grimsby, ON

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Grimsby »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 46.03 liters of gas to cover the route between Grimsby, ON and Cornwall, ON.

The estimated cost of gas to go from Grimsby to Cornwall is $69.50.

During the route, an average car will release 1,100.97 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 Grimsby, ON and Cornwall, ON

If you want to meet halfway between Grimsby, 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 44.175503 and -77.466255, or 44º 10' 31.8108" N, 77º 27' 58.518" W. This location is 160.67 miles away from Grimsby, ON and Cornwall, ON and it would take approximately 3 hours 8 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Belleville, ON, situated 167 miles from Grimsby, ON and 158 miles from Cornwall, ON. It would take 2 hours 47 mins to go from Grimsby to Belleville and 2 hours 40 mins to go from Cornwall to Belleville.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	270.87 mi	435.92 km	235.38 nautical mi
Driving distance	321 mi	517.16 km	279.24 nautical mi

Road Trip Tips