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

Distance from Calhoun, MO to Union, IL

Distance

496 mi

Time

9 hours 51 mins

Gas Cost

$46 - $90

There are 373.19 miles from Calhoun to Union in northeast direction and 496 miles (798.23 kilometers) by car, following the IL 110 route.

Calhoun and Union are 9 hours 51 mins far apart, if you drive non-stop .

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

Calhoun, MO and Union, IL are in the same time zone (CDT). Current time in both locations is 9:48 am.

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Lowest Price Rental Cars in Calhoun, MO

Planning on renting a car to go from Calhoun, MO to Union, 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 19.94 gallons of gas to cover the route between Calhoun, MO and Union, IL.

The estimated cost of gas to go from Calhoun to Union is $65.03.

During the route, an average car will release 390.60 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 Union, IL

If you want to meet halfway between Calhoun, MO and Union, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.373791 and -91.120589, or 40º 22' 25.6476" N, 91º 7' 14.1204" W. This location is 248.21 miles away from Calhoun, MO and Union, IL and it would take approximately 4 hours 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Carthage, IL, situated 255 miles from Calhoun, MO and 244 miles from Union, IL. It would take 5 hours 9 mins to go from Calhoun to Carthage and 4 hours 47 mins to go from Union to Carthage.