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

Distance from Calhoun, MO to Hardin, MT

Distance

1,057 mi

Time

18 hours 36 mins

Gas Cost

$99 - $193

There are 873.23 miles from Calhoun to Hardin in northwest direction and 1,057 miles (1,701.08 kilometers) by car, following the I-90 route.

Calhoun and Hardin are 18 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Calhoun, MO to Hardin, MT.

Please note the time difference between Calhoun, MO and Hardin, MT is 1 hour. The current time in Calhoun is 1:55 am and the current time in Hardin is 12:55 am.

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Lowest Price Rental Cars in Calhoun, MO

Planning on renting a car to go from Calhoun, MO to Hardin, MT? 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 42.45 gallons of gas to cover the route between Calhoun, MO and Hardin, MT.

The estimated cost of gas to go from Calhoun to Hardin is $139.71.

During the route, an average car will release 831.71 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 $3.29 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Calhoun, MO and Hardin, MT

If you want to meet halfway between Calhoun, MO and Hardin, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.750314 and -99.037314, or 43º 45' 1.1304" N, 99º 2' 14.3304" W. This location is 528.52 miles away from Calhoun, MO and Hardin, MT and it would take approximately 9 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kimball, SD, situated 562 miles from Calhoun, MO and 496 miles from Hardin, MT. It would take 10 hours 1 min to go from Calhoun to Kimball and 8 hours 38 mins to go from Hardin to Kimball.