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

Distance from Cornwall, ON to Macdiarmid, ON

Distance

1,399 km

Time

20 hours 7 mins

Gas Cost

$106 - $253

There are 1,122.44 km (697.45 miles) from Cornwall to Macdiarmid in northwest direction and 1,398.52 km (869 miles) by car, following the 11 route.

Cornwall and Macdiarmid are 20 hours 7 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Macdiarmid, ON. The halfway point is Ramore, ON.

Cornwall, ON and Macdiarmid, ON are in the same time zone (EDT). Current time in both locations is 8:30 am.

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Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Macdiarmid, 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 124.50 liters of gas to cover the route between Cornwall, ON and Macdiarmid, ON.

The estimated cost of gas to go from Cornwall to Macdiarmid is $188.

During the route, an average car will release 2,978.07 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 Macdiarmid, ON

If you want to meet halfway between Cornwall, ON and Macdiarmid, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 48.521294 and -80.501335, or 48º 31' 16.6584" N, 80º 30' 4.806" W. This location is 434.62 miles away from Cornwall, ON and Macdiarmid, ON and it would take approximately 10 hours 3 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ramore, ON, situated 463 miles from Cornwall, ON and 406 miles from Macdiarmid, ON. It would take 8 hours 57 mins to go from Cornwall to Ramore and 7 hours 39 mins to go from Macdiarmid to Ramore.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	697.45 mi	1,122.44 km	606.07 nautical mi
Driving distance	869 mi	1,398.89 km	755.34 nautical mi

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