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

Distance from Williamstown, MO to Junction, IL

Distance

312 mi

Time

6 hours 41 mins

Gas Cost

$29 - $57

There are 258.47 miles from Williamstown to Junction in southeast direction and 312 miles (502.12 kilometers) by car, following the US-61 route.

Williamstown and Junction are 6 hours 41 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to Junction, IL.

Williamstown, MO and Junction, IL are in the same time zone (CDT). Current time in both locations is 2:34 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Williamstown, MO

Planning on renting a car to go from Williamstown, MO to Junction, IL? 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 12.52 gallons of gas to cover the route between Williamstown, MO and Junction, IL.

The estimated cost of gas to go from Williamstown to Junction is $40.85.

During the route, an average car will release 245.32 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 Junction, IL

If you want to meet halfway between Williamstown, MO and Junction, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.630885 and -90.350685, or 38º 37' 51.186" N, 90º 21' 2.466" W. This location is 155.89 miles away from Williamstown, MO and Junction, IL and it would take approximately 3 hours 20 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brentwood, MO, situated 162 miles from Williamstown, MO and 152 miles from Junction, IL. It would take 3 hours 31 mins to go from Williamstown to Brentwood and 3 hours 15 mins to go from Junction to Brentwood.

Major City Closest to Halfway Point

The major city closest to the halfway point between Williamstown, MO and Junction, IL is Saint Louis, MO, situated 169 miles from Williamstown, MO and 143 miles from Junction, IL. It would take 3 hours 41 mins to go from Williamstown to Saint Louis and 3 hours 5 mins to go from Junction to Saint Louis.