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

Distance from Cornwall, ON to Radiant, ON

Distance

382 km

Time

5 hours 28 mins

Gas Cost

$29 - $69

There are 295.92 km (183.88 miles) from Cornwall to Radiant in northwest direction and 383.02 km (238 miles) by car, following the 17 route.

Cornwall and Radiant are 5 hours 28 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Radiant, ON. The halfway point is Renfrew, ON.

Cornwall, ON and Radiant, ON are in the same time zone (EDT). Current time in both locations is 5:25 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Radiant, 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 34.04 liters of gas to cover the route between Cornwall, ON and Radiant, ON.

The estimated cost of gas to go from Cornwall to Radiant is $51.40.

During the route, an average car will release 814.28 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 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, ON and Radiant, ON

If you want to meet halfway between Cornwall, ON and Radiant, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.447319 and -76.597092, or 45º 26' 50.3484" N, 76º 35' 49.5312" W. This location is 118.84 miles away from Cornwall, ON and Radiant, ON and it would take approximately 2 hours 44 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Renfrew, ON, situated 122 miles from Cornwall, ON and 119 miles from Radiant, ON. It would take 2 hours 10 mins to go from Cornwall to Renfrew and 3 hours 20 mins to go from Radiant to Renfrew.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	183.88 mi	295.92 km	159.78 nautical mi
Driving distance	238 mi	382.49 km	206.53 nautical mi

Road Trip Tips