Distance between cities › USA › Texas › Mount Calm, TX › Distance from Mount Calm to Sumner Book Hotels

Distance from Mount Calm, TX to Sumner, MS

Distance

483 mi

Time

9 hours 27 mins

Gas Cost

$45 - $88

There are 407.55 miles from Mount Calm to Sumner in northeast direction and 483 miles (777.31 kilometers) by car, following the US-259 route.

Mount Calm and Sumner are 9 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Mount Calm, TX to Sumner, MS.

Mount Calm, TX and Sumner, MS are in the same time zone (CDT). Current time in both locations is 3:24 pm.

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Lowest Price Rental Cars in Mount Calm, TX

Planning on renting a car to go from Mount Calm, TX to Sumner, MS? Here there are some offers to rent a car in Mount Calm, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mount Calm »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 19.40 gallons of gas to cover the route between Mount Calm, TX and Sumner, MS.

The estimated cost of gas to go from Mount Calm to Sumner is $63.27.

During the route, an average car will release 380.03 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 Mount Calm, TX and Sumner, MS

If you want to meet halfway between Mount Calm, TX and Sumner, MS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 32.571865 and -93.207748, or 32º 34' 18.714" N, 93º 12' 27.8928" W. This location is 241.49 miles away from Mount Calm, TX and Sumner, MS and it would take approximately 4 hours 43 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dubberly, LA, situated 238 miles from Mount Calm, TX and 250 miles from Sumner, MS. It would take 4 hours 31 mins to go from Mount Calm to Dubberly and 5 hours 6 mins to go from Sumner to Dubberly.