Distance between cities › USA › Illinois › Ancona, IL › Distance from Ancona to Roundup Book Hotels

Distance from Ancona, IL to Roundup, MT

Distance

1,268 mi

Time

22 hours 18 mins

Gas Cost

$118 - $230

There are 1,047 miles from Ancona to Roundup in northwest direction and 1,268 miles (2,040.65 kilometers) by car, following the I-90 route.

Ancona and Roundup are 22 hours 18 mins far apart, if you drive non-stop .

This is the fastest route from Ancona, IL to Roundup, MT.

Please note the time difference between Ancona, IL and Roundup, MT is 1 hour. The current time in Ancona is 2:57 am and the current time in Roundup is 1:57 am.

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Lowest Price Rental Cars in Ancona, IL

Planning on renting a car to go from Ancona, IL to Roundup, MT? Here there are some offers to rent a car in Ancona, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ancona »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 50.92 gallons of gas to cover the route between Ancona, IL and Roundup, MT.

The estimated cost of gas to go from Ancona to Roundup is $166.10.

During the route, an average car will release 997.63 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 Ancona, IL and Roundup, MT

If you want to meet halfway between Ancona, IL and Roundup, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.695815 and -98.345172, or 43º 41' 44.934" N, 98º 20' 42.6192" W. This location is 633.96 miles away from Ancona, IL and Roundup, MT and it would take approximately 11 hours 9 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mount Vernon, SD, situated 646 miles from Ancona, IL and 624 miles from Roundup, MT. It would take 11 hours 36 mins to go from Ancona to Mount Vernon and 10 hours 50 mins to go from Roundup to Mount Vernon.