Distance between cities › USA › Missouri › Williamstown, MO › Distance from Williamstown to Lamar Book Hotels

Distance from Williamstown, MO to Lamar, MO

Distance

330 mi

Time

6 hours 59 mins

Gas Cost

$29 - $57

There are 231.83 miles from Williamstown to Lamar in southwest direction and 330 miles (531.08 kilometers) by car, following the US-54 route.

Williamstown and Lamar are 6 hours 59 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to Lamar, MO.

Williamstown, MO and Lamar, MO are in the same time zone (CDT). Current time in both locations is 7:23 am.

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Lowest Price Rental Cars in Williamstown, MO

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.26 gallons of gas to cover the route between Williamstown, MO and Lamar, MO.

The estimated cost of gas to go from Williamstown to Lamar is $40.95.

During the route, an average car will release 259.74 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 $3.09 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Williamstown, MO and Lamar, MO

If you want to meet halfway between Williamstown, MO 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 38.374087 and -92.413419, or 38º 22' 26.7132" N, 92º 24' 48.3084" W. This location is 165.05 miles away from Williamstown, MO and Lamar, MO and it would take approximately 3 hours 29 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Eugene, MO, situated 172 miles from Williamstown, MO and 162 miles from Lamar, MO. It would take 3 hours 46 mins to go from Williamstown to Eugene and 3 hours 21 mins to go from Lamar to Eugene.