Distance from McHenry, IL to O'Fallon, MO

Driving distance from McHenry, IL to O'Fallon, MO is 356 miles (573 km). How far is it from McHenry, IL to O'Fallon, MO? It's a 06 hours 06 minutes drive by car. Flight distance is approximately 275 miles (442 km) and flight time from McHenry, IL to O'Fallon, MO is 33 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.

Driving distance
356 Miles
/
573 Km
Driving distance
Gas consumption
14.24 Gallons
54.44 Litres
Gas consumption
Flight distance
275 Miles
/
442 Km
Flight distance

How far is it from McHenry, IL to O'Fallon, MO?

To travel the distance from McHenry, IL to O'Fallon, MO, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.

Book a Hotel for your trip to O'Fallon, MO

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Last distance calculations