Distance between cities › USA › Ohio › Dover, OH › Distance from Dover to O Fallon Book Hotels

Distance from Dover, OH to O Fallon, MO

Distance

562 mi

Time

10 hours 33 mins

Gas Cost

$51 - $100

There are 504.45 miles from Dover to O Fallon in southwest direction and 562 miles (904.45 kilometers) by car, following the I-70 route.

Dover and O Fallon are 10 hours 33 mins far apart, if you drive non-stop .

This is the fastest route from Dover, OH to O Fallon, MO.

Please note the time difference between Dover, OH and O Fallon, MO is 1 hour. The current time in Dover is 10:42 pm and the current time in O Fallon is 9:42 pm.

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Lowest Price Rental Cars in Dover, OH

Planning on renting a car to go from Dover, OH to O Fallon, MO? Here there are some offers to rent a car in Dover, OH

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dover »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 22.57 gallons of gas to cover the route between Dover, OH and O Fallon, MO.

The estimated cost of gas to go from Dover to O Fallon is $72.31.

During the route, an average car will release 442.19 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Dover, OH and O Fallon, MO

If you want to meet halfway between Dover, OH and O Fallon, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.816107 and -85.925172, or 39º 48' 57.9852" N, 85º 55' 30.6192" W. This location is 280.99 miles away from Dover, OH and O Fallon, MO and it would take approximately 5 hours 16 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Cumberland, IN, situated 286 miles from Dover, OH and 280 miles from O Fallon, MO. It would take 5 hours 21 mins to go from Dover to Cumberland and 5 hours 20 mins to go from O Fallon to Cumberland.

Major City Closest to Halfway Point

The major city closest to the halfway point between Dover, OH and O Fallon, MO is Indianapolis, IN, situated 295 miles from Dover, OH and 267 miles from O Fallon, MO. It would take 5 hours 35 mins to go from Dover to Indianapolis and 5 hours 4 mins to go from O Fallon to Indianapolis.