Distance between cities › USA › Illinois › Rio, IL › Distance from Rio to Acton Book Hotels

Distance from Rio, IL to Acton, MT

Distance

1,158 mi

Time

20 hours 21 mins

Gas Cost

$108 - $210

There are 971.94 miles from Rio to Acton in northwest direction and 1,158 miles (1,863.62 kilometers) by car, following the I-90 route.

Rio and Acton are 20 hours 21 mins far apart, if you drive non-stop .

This is the fastest route from Rio, IL to Acton, MT. The halfway point is Pukwana, SD.

Please note the time difference between Rio, IL and Acton, MT is 1 hour. The current time in Rio is 6:15 am and the current time in Acton is 5:15 am.

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Lowest Price Rental Cars in Rio, IL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Rio »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 46.49 gallons of gas to cover the route between Rio, IL and Acton, MT.

The estimated cost of gas to go from Rio to Acton is $151.67.

During the route, an average car will release 910.92 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 Rio, IL and Acton, MT

If you want to meet halfway between Rio, IL and Acton, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.743797 and -99.099098, or 43º 44' 37.6692" N, 99º 5' 56.7528" W. This location is 578.86 miles away from Rio, IL and Acton, MT and it would take approximately 10 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Pukwana, SD, situated 622 miles from Rio, IL and 603 miles from Acton, MT. It would take 8 hours 57 mins to go from Rio to Pukwana and 8 hours 48 mins to go from Acton to Pukwana.