Distance between cities › USA › Illinois › Walnut, IL › Distance from Walnut to Boulder Book Hotels

Distance from Walnut, IL to Boulder, CO

Distance

902 mi

Time

16 hours 14 mins

Gas Cost

$84 - $164

There are 825.89 miles from Walnut to Boulder in west direction and 902 miles (1,451.63 kilometers) by car, following the I-80 Express route.

Walnut and Boulder are 16 hours 14 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Boulder, CO.

Please note the time difference between Walnut, IL and Boulder, CO is 1 hour. The current time in Walnut is 6:26 pm and the current time in Boulder is 5:26 pm.

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Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Boulder, CO? Here there are some offers to rent a car in Walnut, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Walnut »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 36.24 gallons of gas to cover the route between Walnut, IL and Boulder, CO.

The estimated cost of gas to go from Walnut to Boulder is $118.20.

During the route, an average car will release 709.93 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 Walnut, IL and Boulder, CO

If you want to meet halfway between Walnut, IL and Boulder, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.822057 and -97.493447, or 40º 49' 19.4052" N, 97º 29' 36.4092" W. This location is 451.14 miles away from Walnut, IL and Boulder, CO and it would take approximately 8 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Waco, NE, situated 444 miles from Walnut, IL and 463 miles from Boulder, CO. It would take 8 hours 32 mins to go from Walnut to Waco and 7 hours 53 mins to go from Boulder to Waco.