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

Distance from Williams, CA to Mason, IL

Distance

2,098 mi

Time

1 day 12 hours

Gas Cost

$196 - $380

There are 1,788.46 miles from Williams to Mason in east direction and 2,098 miles (3,376.40 kilometers) by car, following the I-80 route.

Williams and Mason are 1 day 12 hours far apart, if you drive non-stop .

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

Please note the time difference between Williams, CA and Mason, IL is 2 hours. The current time in Williams is 3:25 am and the current time in Mason is 5:25 am.

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Lowest Price Rental Cars in Williams, CA

Planning on renting a car to go from Williams, CA to Mason, 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 84.26 gallons of gas to cover the route between Williams, CA and Mason, IL.

The estimated cost of gas to go from Williams to Mason is $274.85.

During the route, an average car will release 1,650.77 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 Williams, CA and Mason, IL

If you want to meet halfway between Williams, CA and Mason, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.350565 and -105.644859, or 41º 21' 2.034" N, 105º 38' 41.4924" W. This location is 1,049 miles away from Williams, CA and Mason, IL and it would take approximately 18 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 Laramie, WY, situated 1,061 miles from Williams, CA and 1,038 miles from Mason, IL. It would take 18 hours 16 mins to go from Williams to Laramie and 18 hours 31 mins to go from Mason to Laramie.