USA › Road trip gas calculator › Denver to Chicago
Denver to Chicago: gas cost
About 1000 miles one way. Fuel cost at this week’s average regular price in Colorado: $4.068 per gallon (EIA, week of Nov 2, 2026).
Fuel cost by vehicle
| Vehicle | MPG | Gallons | One way | Round trip |
|---|---|---|---|---|
| Compact car | 35 | 28.6 | $116.23 | $232.46 |
| Midsize sedan | 30 | 33.3 | $135.60 | $271.20 |
| SUV / crossover | 24 | 41.7 | $169.50 | $339.00 |
| Pickup truck | 18 | 55.6 | $226.00 | $452.00 |
💡 Nebraska and Iowa are usually cheaper than Colorado and Illinois along I-80.
Calculate with your own numbers
Popular road trips
FAQ
How much does it cost to drive from Denver to Chicago?
At about 1000 miles and this week’s average of $4.068 per gallon (Colorado), a car averaging 30 MPG uses about 33.3 gallons – roughly $135.60 one way or $271.20 round trip.
How many gallons of gas from Denver to Chicago?
About 28.6 gallons for a 35 MPG car, 41.7 for a 24 MPG SUV and 55.6 for an 18 MPG pickup.
Gas prices by state this week → · Gas price history → · More calculators →
Distances are approximate driving distances. Gas prices: U.S. Energy Information Administration weekly averages for regular gasoline; actual prices along the route vary.