Shortest distance between Rock Port and O'Fallon is 279.19 miles (449.31 km).
Flight distance from Rock Port, MO to O'Fallon, MO is 279.19 miles. Estimated flight time is 00 hours 40 minutes.
It takes 00 hours 36 minutes to travel from Rock Port to O'Fallon with an airplane (average speed of 550 miles).
The driving distance from Rock Port, Missouri to O'Fallon, Missouri is: 336.67 miles (541.82 km) by car.
Driving from Rock Port to O'Fallon will take approximately 05 hours 21 minutes.
The distance between Rock Port and O'Fallon is 542 km if you choose to drive by road. You can go 06 hours 01 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 Rock Port and O'Fallon. The current time is 01:42:32.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||11 hours 13 minutes|
|40 mph (64.37 km/h)||08 hours 25 minutes|
|50 mph (80.47 km/h)||06 hours 43 minutes|
|60 mph (96.56 km/h)||05 hours 36 minutes|
|70 mph (112.65 km/h)||04 hours 48 minutes|
|75 mph (120.7 km/h)||04 hours 29 minutes|
|80 mph (128.75 km/h)||04 hours 12 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 44.97 liters (11.88 gallon) of gas to cover the route between Rock Port and O'Fallon.
The estimated cost of gas to go from Rock Port to O'Fallon is $48.73 (diesel $57.61).
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 June 28, 2022.
The place names are translated into coordinates to approximate the distance between Rock Port 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.