How far is St. Louis, MO from O'Fallon, MO?

Distance by Flight

Shortest distance between St. Louis and O'Fallon is 29.88 miles (48.08 km).

Flight distance from St. Louis, MO to O'Fallon, MO is 29.88 miles. Estimated flight time is 00 hours 04 minutes.

Driving distance

The driving distance from St. Louis, Missouri to O'Fallon, Missouri is: 34.06 miles (54.81 km) by car.

Driving from St. Louis to O'Fallon will take approximately 00 hours 38 minutes.

O'Fallon image
#1 St. Louis

The second most populous city in Missouri and the center of the St. Louis metropolitan area. It is located on the Mississippi River in eastern Missouri. St. Louis is known for its Gateway Arch, its baseball team, the St. Louis Cardinals, and its many attractions, such as the St. Louis Zoo and the Missouri Botanical Garden.

Population 315685
GPS Coordinates 38°37'38"N 90°11'52"W
Latitude 38.6272700
Longitude -90.1978900
Altitude 142
Country United States
O'Fallon image
#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 St. Louis and O'Fallon

The distance between St. Louis and O'Fallon is 55 km if you choose to drive by road. You can go 00 hours 36 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 St. Louis and O'Fallon. The current time is 22:40:54.

Average Speed Travel Time
30 mph (48.3 km/h) 01 hours 08 minutes
40 mph (64.37 km/h) 00 hours 51 minutes
50 mph (80.47 km/h) 00 hours 40 minutes
60 mph (96.56 km/h) 00 hours 34 minutes
70 mph (112.65 km/h) 00 hours 29 minutes
75 mph (120.7 km/h) 00 hours 27 minutes
80 mph (128.75 km/h) 00 hours 25 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 4.55 liters (1.2 gallon) of gas to cover the route between St. Louis and O'Fallon.
The estimated cost of gas to go from St. Louis to O'Fallon is $3.85 (diesel $5.32).

Missouri gas prices.

Gasoline Mid Grade Premium Diesel
Gallon $3.21 $3.54 $3.86 $4.43
Total $3.85 $4.25 $4.64 $5.32

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 June 14, 2024.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between St. Louis 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.

Distance to Other Cities

O'Fallon image

Driving distance from Blue Springs, MO to St. Louis 231.16 miles (372 km)

O'Fallon image

Driving distance from Cape Girardeau, MO to St. Louis 118.72 miles (191 km)

Driving distance from Castle Point, MO to St. Louis 12.29 miles (20 km)

O'Fallon image

Driving distance from Chesterfield, MO to St. Louis 21.92 miles (35 km)

O'Fallon image

Driving distance from Columbia, MO to St. Louis 124.85 miles (201 km)

Driving distance from East Independence, MO to St. Louis 239.88 miles (386 km)

O'Fallon image

Driving distance from Florissant, MO to St. Louis 18.22 miles (29 km)

O'Fallon image

Driving distance from Independence, MO to St. Louis 240.03 miles (386 km)

O'Fallon image

Driving distance from Jefferson City, MO to St. Louis 133.16 miles (214 km)

O'Fallon image

Driving distance from Joplin, MO to St. Louis 284.9 miles (459 km)

O'Fallon image

Driving distance from Kansas City, MO to St. Louis 248.01 miles (399 km)

O'Fallon image

Driving distance from Lee's Summit, MO to St. Louis 246.93 miles (397 km)

Gas Cost Calculator