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

Distance from Cornwall, ON to Saint Augustine, ON

Distance

637 km

Time

8 hours 14 mins

Gas Cost

$48 - $115

There are 553.35 km (343.83 miles) from Cornwall to Saint Augustine in southwest direction and 637.30 km (396 miles) by car, following the 401 route.

Cornwall and Saint Augustine are 8 hours 14 mins far apart, if you drive non-stop .

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

Cornwall, ON and Saint Augustine, 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 Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Saint Augustine, 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 56.70 liters of gas to cover the route between Cornwall, ON and Saint Augustine, ON.

The estimated cost of gas to go from Cornwall to Saint Augustine is $85.62.

During the route, an average car will release 1,356.31 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 Saint Augustine, ON

If you want to meet halfway between Cornwall, ON and Saint Augustine, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.990913 and -78.129173, or 43º 59' 27.2868" N, 78º 7' 45.0228" W. This location is 197.94 miles away from Cornwall, ON and Saint Augustine, ON and it would take approximately 4 hours 7 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 202 miles from Cornwall, ON and 200 miles from Saint Augustine, ON. It would take 3 hours 22 mins to go from Cornwall to Baltimore and 3 hours 54 mins to go from Saint Augustine to Baltimore.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Cornwall, ON and Saint Augustine, 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	396 mi	637.10 km	344.01 nautical mi

Road Trip Tips