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

Distance from Saint Augustine, ON to Cornwall, ON

Distance

635 km

Time

8 hours 12 mins

Gas Cost

$48 - $115

Helpful Inaccurate

There are 553.35 km (343.83 miles) from Saint Augustine to Cornwall in northeast direction and 634.08 km (394 miles) by car, following the 401 route.

Saint Augustine and Cornwall are 8 hours 12 mins far apart, if you drive non-stop .

This is the fastest route from Saint Augustine, ON to Cornwall, ON. The halfway point is Baltimore, ON.

Saint Augustine, ON and Cornwall, ON are in the same time zone (EDT). Current time in both locations is 8:14 am.

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Lowest Price Rental Cars in Saint Augustine, ON

Planning on renting a car to go from Saint Augustine, ON to Cornwall, ON? Here there are some offers to rent a car in Saint Augustine, ON

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Saint Augustine »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 56.49 liters of gas to cover the route between Saint Augustine, ON and Cornwall, ON.

The estimated cost of gas to go from Saint Augustine to Cornwall is $85.29.

During the route, an average car will release 1,351.13 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 Saint Augustine, ON and Cornwall, ON

If you want to meet halfway between Saint Augustine, ON and Cornwall, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.989456 and -78.137863, or 43º 59' 22.0416" N, 78º 8' 16.3068" W. This location is 197.18 miles away from Saint Augustine, ON and Cornwall, ON and it would take approximately 4 hours 6 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Baltimore, ON, situated 199 miles from Saint Augustine, ON and 202 miles from Cornwall, ON. It would take 3 hours 50 mins to go from Saint Augustine to Baltimore and 3 hours 23 mins to go from Cornwall to Baltimore.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	343.83 mi	553.35 km	298.78 nautical mi
Driving distance	394 mi	634.67 km	342.69 nautical mi

Road Trip Tips