How far is Union, MO from O'Fallon, MO?
Distance by Flight
Shortest distance between Union and O'Fallon is 29.97 miles (48.23 km).
Flight distance from Union, MO to O'Fallon, MO is 29.97 miles. Estimated flight time is 00 hours 05 minutes.
Driving distance
The driving distance from Union, Missouri to O'Fallon, Missouri is: 42.46 miles (68.33 km) by car.
Driving from Union to O'Fallon will take approximately 00 hours 53 minutes.
#1 Union
City in and county seat of Franklin County, Missouri, United States
| Population | 12094 |
|---|---|
| GPS Coordinates | 38°27'0"N 91°0'31"W |
| Latitude | 38.4500500 |
| Longitude | -91.0084800 |
| Altitude | 162 |
| 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 |
Ending point in O'Fallon: (-90.699849,38.810674)
Estimated Travel Time Between Union and O'Fallon
The distance between Union and O'Fallon is 68 km if you choose to drive by road. You can go 00 hours 45 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 Union and O'Fallon. The current time is 03:44:19.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 01 hours 24 minutes |
| 40 mph (64.37 km/h) | 01 hours 03 minutes |
| 50 mph (80.47 km/h) | 00 hours 50 minutes |
| 60 mph (96.56 km/h) | 00 hours 42 minutes |
| 70 mph (112.65 km/h) | 00 hours 36 minutes |
| 75 mph (120.7 km/h) | 00 hours 33 minutes |
| 80 mph (128.75 km/h) | 00 hours 31 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 5.67 liters (1.5 gallon) of gas to cover the route between Union and O'Fallon.
The estimated cost of gas to go from Union to O'Fallon is $4.8 (diesel $6.63).
Missouri gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.21 | $3.54 | $3.86 | $4.43 |
| Total | $4.8 | $5.3 | $5.78 | $6.63 |
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 November 25, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Union 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
Driving distance from Castle Point, MO to Union 61.49 miles (99 km)
Driving distance from East Independence, MO to Union 214.06 miles (345 km)
