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

Distance from Williamstown, MO to Prim, AR

Distance

416 mi

Time

9 hours 34 mins

Gas Cost

$39 - $75

There are 314.59 miles from Williamstown to Prim in south direction and 416 miles (669.49 kilometers) by car, following the I-44 Business and US-Historic 66 and US-63 route.

Williamstown and Prim are 9 hours 34 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to Prim, AR.

Williamstown, MO and Prim, AR are in the same time zone (CDT). Current time in both locations is 3:14 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Williamstown, MO to Prim, AR:

Lowest Price Rental Cars in Williamstown, MO

Planning on renting a car to go from Williamstown, MO to Prim, AR? 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 16.69 gallons of gas to cover the route between Williamstown, MO and Prim, AR.

The estimated cost of gas to go from Williamstown to Prim is $54.44.

During the route, an average car will release 327 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 Williamstown, MO and Prim, AR

If you want to meet halfway between Williamstown, MO and Prim, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.003686 and -91.829895, or 38º 0' 13.2696" N, 91º 49' 47.622" W. This location is 207.79 miles away from Williamstown, MO and Prim, AR and it would take approximately 4 hours 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rolla, MO, situated 213 miles from Williamstown, MO and 205 miles from Prim, AR. It would take 4 hours 41 mins to go from Williamstown to Rolla and 4 hours 55 mins to go from Prim to Rolla.