How far is Saint John from O'Fallon?

Distance by Flight

Shortest distance between Saint John and O'Fallon is 20.17 miles (32.45 km).

Flight distance from Saint John, MO to O'Fallon, MO is 20.17 miles. Estimated flight time is 00 hours 02 minutes.

Driving distance

The driving distance from Saint John, Missouri to O'Fallon, Missouri is: 22.09 miles (35.54 km) by car.

Driving from Saint John to O'Fallon will take approximately 00 hours 26 minutes.

O'Fallon image
#1 Saint John

City in Missouri, USA

Population 6319
GPS Coordinates 38°42'53"N 90°20'47"W
Latitude 38.7148400
Longitude -90.3462700
Altitude 196
Country United States
O'Fallon image
#2 O'Fallon

City in St. Charles County, Missouri, United States

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 Saint John and O'Fallon

The distance between Saint John and O'Fallon is 36 km if you choose to drive by road. You can go 00 hours 23 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 Saint John and O'Fallon. The current time is 03:21:32.

Average Speed Travel Time
30 mph (48.3 km/h) 00 hours 44 minutes
40 mph (64.37 km/h) 00 hours 33 minutes
50 mph (80.47 km/h) 00 hours 26 minutes
60 mph (96.56 km/h) 00 hours 22 minutes
70 mph (112.65 km/h) 00 hours 18 minutes
75 mph (120.7 km/h) 00 hours 17 minutes
80 mph (128.75 km/h) 00 hours 16 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 2.95 liters (0.78 gallon) of gas to cover the route between Saint John and O'Fallon.
The estimated cost of gas to go from Saint John to O'Fallon is $3.2 (diesel $3.78).

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 per gallon of daily gas for calculations is $4.102 (Diesel $4.849) /gallon. Last changed prices on December 08, 2022.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Saint John 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 Saint John 220.2 miles (354 km)

O'Fallon image

Driving distance from Cape Girardeau, MO to Saint John 131.13 miles (211 km)

Driving distance from Castle Point, MO to Saint John 11.77 miles (19 km)

O'Fallon image

Driving distance from Chesterfield, MO to Saint John 19.89 miles (32 km)

O'Fallon image

Driving distance from Columbia, MO to Saint John 113.89 miles (183 km)

O'Fallon image

Driving distance from Florissant, MO to Saint John 8.58 miles (14 km)

O'Fallon image

Driving distance from Independence, MO to Saint John 229.08 miles (369 km)

O'Fallon image

Driving distance from Jefferson City, MO to Saint John 122.18 miles (197 km)

O'Fallon image

Driving distance from Joplin, MO to Saint John 288.16 miles (464 km)

O'Fallon image

Driving distance from Kansas City, MO to Saint John 237.04 miles (381 km)

O'Fallon image

Driving distance from Lee's Summit, MO to Saint John 235.95 miles (380 km)

Gas Cost Calculator

Find hotel in