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

Distance from Cornwall, ON to Preston, ON

Distance

517 km

Time

6 hours 19 mins

Gas Cost

$39 - $94

There are 482.89 km (300.05 miles) from Cornwall to Preston in southwest direction and 516.60 km (321 miles) by car, following the 401 route.

Cornwall and Preston are 6 hours 19 mins far apart, if you drive non-stop .

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

Cornwall, ON and Preston, ON are in the same time zone (EDT). Current time in both locations is 6:41 pm.

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Preston, 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 45.99 liters of gas to cover the route between Cornwall, ON and Preston, ON.

The estimated cost of gas to go from Cornwall to Preston is $69.45.

During the route, an average car will release 1,100.09 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 Preston, ON

If you want to meet halfway between Cornwall, ON and Preston, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.161839 and -77.474335, or 44º 9' 42.6204" N, 77º 28' 27.606" W. This location is 160.55 miles away from Cornwall, ON and Preston, ON and it would take approximately 3 hours 9 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 167 miles from Preston, ON. It would take 2 hours 41 mins to go from Cornwall to Belleville and 2 hours 51 mins to go from Preston to Belleville.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	300.05 mi	482.89 km	260.74 nautical mi
Driving distance	321 mi	516.75 km	279.02 nautical mi

Road Trip Tips