Distance between cities › USA › California › Williams, CA › Distance from Williams to Castleton Book Hotels

Distance from Williams, CA to Castleton, IL

Distance

1,976 mi

Time

1 day 10 hours

Gas Cost

$181 - $352

There are 1,709.14 miles from Williams to Castleton in east direction and 1,976 miles (3,180.06 kilometers) by car, following the I-80 route.

Williams and Castleton are 1 day 10 hours far apart, if you drive non-stop .

This is the fastest route from Williams, CA to Castleton, IL.

Please note the time difference between Williams, CA and Castleton, IL is 2 hours. The current time in Williams is 9:31 pm and the current time in Castleton is 11:31 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Williams, CA to Castleton, IL:

Lowest Price Rental Cars in Williams, CA

Planning on renting a car to go from Williams, CA to Castleton, IL? Here there are some offers to rent a car in Williams, CA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williams »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 79.34 gallons of gas to cover the route between Williams, CA and Castleton, IL.

The estimated cost of gas to go from Williams to Castleton is $254.20.

During the route, an average car will release 1,554.41 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Williams, CA and Castleton, IL

If you want to meet halfway between Williams, CA and Castleton, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.707421 and -106.427841, or 41º 42' 26.7156" N, 106º 25' 40.2276" W. This location is 987.77 miles away from Williams, CA and Castleton, IL and it would take approximately 17 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Elk Mountain, WY, situated 1,007 miles from Williams, CA and 970 miles from Castleton, IL. It would take 17 hours 22 mins to go from Williams to Elk Mountain and 17 hours 10 mins to go from Castleton to Elk Mountain.