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

Distance from Cornwall, CT to Marengo, IL

Distance

909 mi

Time

17 hours 23 mins

Gas Cost

$85 - $165

There are 783.41 miles from Cornwall to Marengo in west direction and 909 miles (1,462.89 kilometers) by car, following the I-80 route.

Cornwall and Marengo are 17 hours 23 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, CT to Marengo, IL.

Please note the time difference between Cornwall, CT and Marengo, IL is 1 hour. The current time in Cornwall is 7:16 pm and the current time in Marengo is 6:16 pm.

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Lowest Price Rental Cars in Cornwall, CT

Planning on renting a car to go from Cornwall, CT to Marengo, IL? 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 36.49 gallons of gas to cover the route between Cornwall, CT and Marengo, IL.

The estimated cost of gas to go from Cornwall to Marengo is $119.03.

During the route, an average car will release 714.90 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 Marengo, IL

If you want to meet halfway between Cornwall, CT and Marengo, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.117978 and -80.844046, or 41º 7' 4.7208" N, 80º 50' 38.5656" W. This location is 454.29 miles away from Cornwall, CT and Marengo, IL and it would take approximately 8 hours 41 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is North Jackson, OH, situated 462 miles from Cornwall, CT and 449 miles from Marengo, IL. It would take 8 hours 59 mins to go from Cornwall to North Jackson and 8 hours 27 mins to go from Marengo to North Jackson.