Distance between cities › USA › Connecticut › Cornwall, CT › Distance from Cornwall to Au Sable Book Hotels

Distance from Cornwall, CT to Au Sable, MI

Distance

760 mi

Time

15 hours 10 mins

Gas Cost

$71 - $138

There are 534.27 miles from Cornwall to Au Sable in northwest direction and 760 miles (1,223.10 kilometers) by car, following the I-90 route.

Cornwall and Au Sable are 15 hours 10 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, CT to Au Sable, MI.

Cornwall, CT and Au Sable, MI are in the same time zone (EDT). Current time in both locations is 3:38 pm.

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Lowest Price Rental Cars in Cornwall, CT

Planning on renting a car to go from Cornwall, CT to Au Sable, MI? Here there are some offers to rent a car in Cornwall, CT

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 MPG will need 30.52 gallons of gas to cover the route between Cornwall, CT and Au Sable, MI.

The estimated cost of gas to go from Cornwall to Au Sable is $99.57.

During the route, an average car will release 598.04 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, CT and Au Sable, MI

If you want to meet halfway between Cornwall, CT and Au Sable, MI or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.15289 and -79.035561, or 43º 9' 10.404" N, 79º 2' 8.0196" W. This location is 380.03 miles away from Cornwall, CT and Au Sable, MI and it would take approximately 7 hours 35 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Niagara University, NY, situated 377 miles from Cornwall, CT and 384 miles from Au Sable, MI. It would take 7 hours 43 mins to go from Cornwall to Niagara University and 7 hours 32 mins to go from Au Sable to Niagara University.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cornwall, CT and Au Sable, MI is Buffalo, NY, situated 363 miles from Cornwall, CT and 401 miles from Au Sable, MI. It would take 7 hours 24 mins to go from Cornwall to Buffalo and 7 hours 51 mins to go from Au Sable to Buffalo.