How far is Arnold, MO from O'Fallon, MO?

Fastest route

The distance between Arnold, Missouri and O'Fallon, Missouri is approximately 40.7 miles (65.5 kilometers). The fastest route is via I-270 N and I-70 W, which takes about 41 minutes.

Directions

To get from Arnold to O'Fallon, follow these directions:

1. 🚗 Get on I-55 N: Head west on MO-141 N toward Arnold Crossroads Center. Use the right lane to merge onto I-55 N via the ramp to St Louis.
2. 🚙 Take I-270 N and I-70 W: Continue on I-55 N and then take I-270 N. Merge onto I-70 W.
3. 🚧 Exit at E Terra Ln: Take exit 218 from I-70 W.
4. 🛣️ Continue on E Terra Ln: Use the right two lanes to take exit 196 for I-270 W toward Kansas City. Then, take the Kansas City/I-70 E exit toward St Louis. Keep left at the fork and merge onto I-70 W. Take exit 218 toward O'Fallon/Main St.
5. 🚦 Drive to S Main St: Continue on E Terra Ln and turn right onto S Main St.
6. 📍 Arrive at your destination: Pass by Firestone Complete Auto Care (on the right) to reach your destination.

Tips & Suggestions

• 🚗 Consider using a GPS navigation system or a maps app on your phone to help you navigate the route.
• ⛽ Make sure your vehicle has enough fuel for the journey, especially if you're traveling a long distance.
• 🕑 Check traffic conditions before starting your trip to ensure a smooth and timely journey.
• 🚧 Be aware of any road construction or detours that may affect your route. Stay updated on current road conditions.
• 📱 Keep your mobile phone charged and easily accessible for emergencies or if you need to make a call.
• 🚦 Observe traffic laws and regulations, including speed limits, for a safe and legal journey.
• 🚙 Consider bringing snacks, drinks, and entertainment for a comfortable trip, especially if you're traveling with children.

Distance by Flight

Shortest distance between Arnold and O'Fallon is 31.37 miles (50.48 km).

Flight distance from Arnold, MO to O'Fallon, MO is 31.37 miles. Estimated flight time is 00 hours 05 minutes.

Driving distance

The driving distance from Arnold, Missouri to O'Fallon, Missouri is: 41.58 miles (66.92 km) by car.

Driving from Arnold to O'Fallon will take approximately 00 hours 43 minutes.

#1 Arnold

City in Missouri

Population	21145
GPS Coordinates	38°25'58"N 90°22'39"W
Latitude	38.4328300
Longitude	-90.3776200
Altitude	184
Country	United States

#2 O'Fallon

The most populous city in St. Charles County, Missouri. It is located in the eastern part of the county. O'Fallon is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the O'Fallon City Hall and the O'Fallon History Museum.

Population	89769
GPS Coordinates	38°48'38"N 90°41'59"W
Latitude	38.8106100
Longitude	-90.6998500
Altitude	165
Country	United States

Estimated Travel Time Between Arnold and O'Fallon

The distance between Arnold and O'Fallon is 67 km if you choose to drive by road. You can go 00 hours 44 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.

There is no time difference between Arnold and O'Fallon. The current time is 02:26:40.

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 5.55 liters (1.47 gallon) of gas to cover the route between Arnold and O'Fallon.
The estimated cost of gas to go from Arnold to O'Fallon is $4.7 (diesel $6.49).

Missouri gas prices.

Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.

The average gas price (in Missouri ) per gallon of daily gas for calculations is $3.205 (Diesel $4.426) /gallon. Last changed prices on December 22, 2024.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Arnold and O'Fallon (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.