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

Distance from Cornwall, ON to Ilderton, ON

Distance

637 km

Time

7 hours 53 mins

Gas Cost

$48 - $115

There are 573.55 km (356.39 miles) from Cornwall to Ilderton in southwest direction and 637.30 km (396 miles) by car, following the 401 route.

Cornwall and Ilderton are 7 hours 53 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Ilderton, ON. The halfway point is Grafton, ON.

Cornwall, ON and Ilderton, ON are in the same time zone (EDT). Current time in both locations is 6:24 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Ilderton, 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 56.68 liters of gas to cover the route between Cornwall, ON and Ilderton, ON.

The estimated cost of gas to go from Cornwall to Ilderton is $85.59.

During the route, an average car will release 1,355.79 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 Ilderton, ON

If you want to meet halfway between Cornwall, ON and Ilderton, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.999645 and -78.064224, or 43º 59' 58.722" N, 78º 3' 51.2064" W. This location is 197.86 miles away from Cornwall, ON and Ilderton, ON and it would take approximately 3 hours 56 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Grafton, ON, situated 193 miles from Cornwall, ON and 198 miles from Ilderton, ON. It would take 3 hours 12 mins to go from Cornwall to Grafton and 3 hours 33 mins to go from Ilderton to Grafton.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	356.39 mi	573.55 km	309.69 nautical mi
Driving distance	396 mi	636.86 km	343.88 nautical mi

Road Trip Tips