Distance between cities › USA › California › Keyes, CA › Distance from Keyes to Mattoon Book Hotels

Distance from Keyes, CA to Mattoon, IL

Distance

2,122 mi

Time

1 day 13 hours

Gas Cost

$177 - $344

There are 1,754.64 miles from Keyes to Mattoon in east direction and 2,122 miles (3,415.03 kilometers) by car, following the I-80 route.

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

This is the fastest route from Keyes, CA to Mattoon, IL.

Please note the time difference between Keyes, CA and Mattoon, IL is 2 hours. The current time in Keyes is 11:16 pm (Mar 11) and the current time in Mattoon is 1:16 am (Mar 12).

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Lowest Price Rental Cars in Keyes, CA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Keyes »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 85.22 gallons of gas to cover the route between Keyes, CA and Mattoon, IL.

The estimated cost of gas to go from Keyes to Mattoon is $248.85.

During the route, an average car will release 1,669.69 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 $2.92 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Keyes, CA and Mattoon, IL

If you want to meet halfway between Keyes, CA and Mattoon, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.562321 and -106.118623, or 41º 33' 44.3556" N, 106º 7' 7.0428" W. This location is 1,061.03 miles away from Keyes, CA and Mattoon, IL and it would take approximately 18 hours 30 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Arlington, WY, situated 1,077 miles from Keyes, CA and 1,046 miles from Mattoon, IL. It would take 18 hours 16 mins to go from Keyes to Arlington and 18 hours 47 mins to go from Mattoon to Arlington.