Distance between cities › USA › Maryland › McHenry, MD › Distance from McHenry to Lamar Book Hotels

Distance from McHenry, MD to Lamar, AR

Distance

995 mi

Time

18 hours 22 mins

Gas Cost

$93 - $180

There are 819.58 miles from McHenry to Lamar in southwest direction and 995 miles (1,601.30 kilometers) by car, following the I-64 route.

McHenry and Lamar are 18 hours 22 mins far apart, if you drive non-stop .

This is the fastest route from McHenry, MD to Lamar, AR. The halfway point is Oakland, KY.

Please note the time difference between McHenry, MD and Lamar, AR is 1 hour. The current time in McHenry is 2:50 pm and the current time in Lamar is 1:50 pm.

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Lowest Price Rental Cars in McHenry, MD

Planning on renting a car to go from McHenry, MD to Lamar, AR? Here there are some offers to rent a car in McHenry, MD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in McHenry »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 39.96 gallons of gas to cover the route between McHenry, MD and Lamar, AR.

The estimated cost of gas to go from McHenry to Lamar is $130.36.

During the route, an average car will release 782.93 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 McHenry, MD and Lamar, AR

If you want to meet halfway between McHenry, MD and Lamar, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 37.019646 and -86.273705, or 37º 1' 10.7256" N, 86º 16' 25.338" W. This location is 497.53 miles away from McHenry, MD and Lamar, AR and it would take approximately 9 hours 11 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Oakland, KY, situated 511 miles from McHenry, MD and 504 miles from Lamar, AR. It would take 8 hours 16 mins to go from McHenry to Oakland and 7 hours 49 mins to go from Lamar to Oakland.