Distance between cities › USA › Missouri › Calhoun, MO › Distance from Calhoun to Dennison Book Hotels

Distance from Calhoun, MO to Dennison, IL

Distance

377 mi

Time

7 hours 29 mins

Gas Cost

$35 - $68

There are 331 miles from Calhoun to Dennison in northeast direction and 377 miles (606.72 kilometers) by car, following the I-70 and US-40 route.

Calhoun and Dennison are 7 hours 29 mins far apart, if you drive non-stop .

This is the fastest route from Calhoun, MO to Dennison, IL.

Calhoun, MO and Dennison, IL are in the same time zone (CDT). Current time in both locations is 10:09 am.

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Lowest Price Rental Cars in Calhoun, MO

Planning on renting a car to go from Calhoun, MO to Dennison, IL? Here there are some offers to rent a car in Calhoun, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Calhoun »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 15.14 gallons of gas to cover the route between Calhoun, MO and Dennison, IL.

The estimated cost of gas to go from Calhoun to Dennison is $49.40.

During the route, an average car will release 296.68 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 Calhoun, MO and Dennison, IL

If you want to meet halfway between Calhoun, MO and Dennison, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.802679 and -90.719702, or 38º 48' 9.6444" N, 90º 43' 10.9272" W. This location is 188.53 miles away from Calhoun, MO and Dennison, IL and it would take approximately 3 hours 44 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is O Fallon, MO, situated 192 miles from Calhoun, MO and 187 miles from Dennison, IL. It would take 3 hours 52 mins to go from Calhoun to O Fallon and 3 hours 42 mins to go from Dennison to O Fallon.

Major City Closest to Halfway Point

The major city closest to the halfway point between Calhoun, MO and Dennison, IL is Saint Louis, MO, situated 223 miles from Calhoun, MO and 162 miles from Dennison, IL. It would take 4 hours 31 mins to go from Calhoun to Saint Louis and 3 hours 12 mins to go from Dennison to Saint Louis.