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

Distance from Cornwall, ON to Grimsby, ON

Distance

519 km

Time

6 hours 16 mins

Gas Cost

$39 - $94

There are 435.92 km (270.87 miles) from Cornwall to Grimsby in southwest direction and 519.82 km (323 miles) by car, following the 401 route.

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

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

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

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Grimsby, ON? 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 46.19 liters of gas to cover the route between Cornwall, ON and Grimsby, ON.

The estimated cost of gas to go from Cornwall to Grimsby is $69.75.

During the route, an average car will release 1,104.95 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 Cornwall, ON and Grimsby, ON

If you want to meet halfway between Cornwall, ON and Grimsby, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.179699 and -77.450958, or 44º 10' 46.9164" N, 77º 27' 3.4488" W. This location is 161.26 miles away from Cornwall, ON and Grimsby, 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 160 miles from Cornwall, ON and 168 miles from Grimsby, ON. It would take 2 hours 41 mins to go from Cornwall to Belleville and 2 hours 48 mins to go from Grimsby to Belleville.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Cornwall, ON and Grimsby, 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	323 mi	519.03 km	280.25 nautical mi

Road Trip Tips