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

Distance from Rio, IL to Mazon, IL

Distance

139 mi

Time

2 hours 35 mins

Gas Cost

$14 - $28

There are 103.39 miles from Rio to Mazon in east direction and 139 miles (223.70 kilometers) by car, following the I-80 route.

Rio and Mazon are 2 hours 35 mins far apart, if you drive non-stop .

This is the fastest route from Rio, IL to Mazon, IL.

Rio, IL and Mazon, IL are in the same time zone (CDT). Current time in both locations is 10:08 pm.

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Lowest Price Rental Cars in Rio, IL

Planning on renting a car to go from Rio, IL to Mazon, IL? 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 5.57 gallons of gas to cover the route between Rio, IL and Mazon, IL.

The estimated cost of gas to go from Rio to Mazon is $20.31.

During the route, an average car will release 109.12 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 $3.65 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Rio, IL and Mazon, IL

If you want to meet halfway between Rio, IL and Mazon, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.392457 and -89.508357, or 41º 23' 32.8452" N, 89º 30' 30.0852" W. This location is 69.34 miles away from Rio, IL and Mazon, IL and it would take approximately 1 hour 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Princeton, IL, situated 75 miles from Rio, IL and 68 miles from Mazon, IL. It would take 1 hour 27 mins to go from Rio to Princeton and 1 hour 15 mins to go from Mazon to Princeton.