Distance between cities › USA › Illinois › Ruma, IL › Distance from Ruma to Lamar Book Hotels

Distance from Ruma, IL to Lamar, OK

Distance

505 mi

Time

9 hours 38 mins

Gas Cost

$47 - $91

There are 399.29 miles from Ruma to Lamar in southwest direction and 505 miles (812.72 kilometers) by car, following the I-44 and US-50 route.

Ruma and Lamar are 9 hours 38 mins far apart, if you drive non-stop .

This is the fastest route from Ruma, IL to Lamar, OK.

Ruma, IL and Lamar, OK are in the same time zone (CDT). Current time in both locations is 11:21 am.

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Lowest Price Rental Cars in Ruma, IL

Planning on renting a car to go from Ruma, IL to Lamar, OK? Here there are some offers to rent a car in Ruma, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ruma »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 20.26 gallons of gas to cover the route between Ruma, IL and Lamar, OK.

The estimated cost of gas to go from Ruma to Lamar is $66.10.

During the route, an average car will release 397.01 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 Ruma, IL and Lamar, OK

If you want to meet halfway between Ruma, IL and Lamar, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 37.205975 and -93.397673, or 37º 12' 21.51" N, 93º 23' 51.6228" W. This location is 252.28 miles away from Ruma, IL and Lamar, OK and it would take approximately 4 hours 49 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brookline, MO, situated 251 miles from Ruma, IL and 257 miles from Lamar, OK. It would take 4 hours 44 mins to go from Ruma to Brookline and 5 hours 6 mins to go from Lamar to Brookline.

Major City Closest to Halfway Point

The major city closest to the halfway point between Ruma, IL and Lamar, OK is Springfield, MO, situated 244 miles from Ruma, IL and 264 miles from Lamar, OK. It would take 4 hours 37 mins to go from Ruma to Springfield and 5 hours 15 mins to go from Lamar to Springfield.