Distance between cities › USA › Indiana › Decker, IN › Distance from Decker to Waterloo Book Hotels

Distance from Decker, IN to Waterloo, IL

Distance

190 mi

Time

3 hours 47 mins

Gas Cost

$18 - $34

There are 142.73 miles from Decker to Waterloo in west direction and 190 miles (305.78 kilometers) by car, following the I-64 route.

Decker and Waterloo are 3 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Decker, IN to Waterloo, IL.

Please note the time difference between Decker, IN and Waterloo, IL is 1 hour. The current time in Decker is 1:50 pm and the current time in Waterloo is 12:50 pm.

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Lowest Price Rental Cars in Decker, IN

Planning on renting a car to go from Decker, IN to Waterloo, IL? Here there are some offers to rent a car in Decker, IN

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Decker »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 7.64 gallons of gas to cover the route between Decker, IN and Waterloo, IL.

The estimated cost of gas to go from Decker to Waterloo is $24.93.

During the route, an average car will release 149.73 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 Decker, IN and Waterloo, IL

If you want to meet halfway between Decker, IN and Waterloo, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.278198 and -88.936524, or 38º 16' 41.5128" N, 88º 56' 11.4864" W. This location is 95.15 miles away from Decker, IN and Waterloo, IL and it would take approximately 1 hour 53 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mount Vernon, IL, situated 96 miles from Decker, IN and 96 miles from Waterloo, IL. It would take 1 hour 59 mins to go from Decker to Mount Vernon and 1 hour 53 mins to go from Waterloo to Mount Vernon.