Distance between cities › USA › Texas › Ira, TX › Distance from Ira to Lamar Book Hotels

Distance from Ira, TX to Lamar, MO

Distance

593 mi

Time

10 hours 45 mins

Gas Cost

$55 - $107

There are 509.61 miles from Ira to Lamar in northeast direction and 593 miles (954.34 kilometers) by car, following the I-44 route.

Ira and Lamar are 10 hours 45 mins far apart, if you drive non-stop .

This is the fastest route from Ira, TX to Lamar, MO. The halfway point is Amber, OK.

Ira, TX and Lamar, MO are in the same time zone (CDT). Current time in both locations is 2:22 pm.

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Lowest Price Rental Cars in Ira, TX

Planning on renting a car to go from Ira, TX to Lamar, MO? Here there are some offers to rent a car in Ira, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ira »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 23.82 gallons of gas to cover the route between Ira, TX and Lamar, MO.

The estimated cost of gas to go from Ira to Lamar is $77.71.

During the route, an average car will release 466.72 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 Ira, TX and Lamar, MO

If you want to meet halfway between Ira, TX and Lamar, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 35.114285 and -97.852135, or 35º 6' 51.426" N, 97º 51' 7.686" W. This location is 296.59 miles away from Ira, TX and Lamar, MO and it would take approximately 5 hours 22 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Amber, OK, situated 306 miles from Ira, TX and 307 miles from Lamar, MO. It would take 5 hours 46 mins to go from Ira to Amber and 4 hours 37 mins to go from Lamar to Amber.

Major City Closest to Halfway Point

The major city closest to the halfway point between Ira, TX and Lamar, MO is Oklahoma City, OK, situated 337 miles from Ira, TX and 258 miles from Lamar, MO. It would take 6 hours 6 mins to go from Ira to and 3 hours 48 mins to go from Lamar to Oklahoma City.