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

Distance from Cornwall, ON to Ajax, ON

Distance

393 km

Time

4 hours 45 mins

Gas Cost

$30 - $71

There are 364.58 km (226.54 miles) from Cornwall to Ajax in southwest direction and 392.68 km (244 miles) by car, following the 401 route.

Cornwall and Ajax are 4 hours 45 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Ajax, ON. The halfway point is Odessa, ON.

Cornwall, ON and Ajax, ON are in the same time zone (EDT). Current time in both locations is 6:14 am.

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Ajax, 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 34.99 liters of gas to cover the route between Cornwall, ON and Ajax, ON.

The estimated cost of gas to go from Cornwall to Ajax is $52.83.

During the route, an average car will release 836.92 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 Ajax, ON

If you want to meet halfway between Cornwall, ON and Ajax, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.281017 and -76.767067, or 44º 16' 51.6612" N, 76º 46' 1.4412" W. This location is 122.14 miles away from Cornwall, ON and Ajax, ON and it would take approximately 2 hours 22 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Odessa, ON, situated 123 miles from Cornwall, ON and 123 miles from Ajax, ON. It would take 2 hours 32 mins to go from Cornwall to Odessa and 2 hours 32 mins to go from Ajax to Odessa.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cornwall, ON and Ajax, ON is Kingston, ON, situated 114 miles from Cornwall, ON and 136 miles from Ajax, ON. It would take 2 hours 23 mins to go from Cornwall to and 2 hours 50 mins to go from Ajax to Kingston.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	226.54 mi	364.58 km	196.86 nautical mi
Driving distance	244 mi	393.13 km	212.27 nautical mi

Road Trip Tips