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

Distance from Williams, CA to Casey, IL

Distance

2,126 mi

Time

1 day 13 hours

Gas Cost

$195 - $378

There are 1,817.14 miles from Williams to Casey in east direction and 2,126 miles (3,421.47 kilometers) by car, following the I-80 route.

Williams and Casey are 1 day 13 hours far apart, if you drive non-stop .

This is the fastest route from Williams, CA to Casey, IL. The halfway point is Buford, WY.

Please note the time difference between Williams, CA and Casey, IL is 2 hours. The current time in Williams is 9:33 pm and the current time in Casey is 11:33 pm.

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Lowest Price Rental Cars in Williams, CA

Planning on renting a car to go from Williams, CA to Casey, 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 85.39 gallons of gas to cover the route between Williams, CA and Casey, IL.

The estimated cost of gas to go from Williams to Casey is $273.59.

During the route, an average car will release 1,672.95 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 Casey, IL

If you want to meet halfway between Williams, CA and Casey, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.133659 and -105.278290, or 41º 8' 1.1724" N, 105º 16' 41.844" W. This location is 1,063.10 miles away from Williams, CA and Casey, IL and it would take approximately 18 hours 34 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Buford, WY, situated 1,114 miles from Williams, CA and 1,070 miles from Casey, IL. It would take 15 hours 17 mins to go from Williams to Buford and 15 hours 23 mins to go from Casey to Buford.