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

Distance from Mount Calm, TX to Diamondhead, MS

Distance

558 mi

Time

10 hours 21 mins

Gas Cost

$52 - $101

There are 454.48 miles from Mount Calm to Diamondhead in east direction and 558 miles (898.01 kilometers) by car, following the I-49 route.

Mount Calm and Diamondhead are 10 hours 21 mins far apart, if you drive non-stop .

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

Mount Calm, TX and Diamondhead, MS are in the same time zone (CDT). Current time in both locations is 2:09 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 Diamondhead, 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 22.40 gallons of gas to cover the route between Mount Calm, TX and Diamondhead, MS.

The estimated cost of gas to go from Mount Calm to Diamondhead is $73.06.

During the route, an average car will release 438.83 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 Diamondhead, MS

If you want to meet halfway between Mount Calm, TX and Diamondhead, MS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 31.609609 and -93.050161, or 31º 36' 34.5924" N, 93º 3' 0.5796" W. This location is 278.86 miles away from Mount Calm, TX and Diamondhead, MS and it would take approximately 5 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Cypress, LA, situated 278 miles from Mount Calm, TX and 281 miles from Diamondhead, MS. It would take 5 hours 10 mins to go from Mount Calm to Cypress and 5 hours 17 mins to go from Diamondhead to Cypress.