Shortest distance between Upper Alton and Decatur is 90.54 miles (145.71 km).
Flight distance from Upper Alton, IL to Decatur, IL is 90.54 miles. Estimated flight time is 00 hours 12 minutes.
It takes 00 hours 11 minutes to travel from Upper Alton to Decatur with an airplane (average speed of 550 miles).
The driving distance from Upper Alton, Illinois to Decatur, Illinois is: 105.06 miles (169.08 km) by car.
Driving from Upper Alton to Decatur will take approximately 01 hours 59 minutes.
The distance between Upper Alton and Decatur is 169 km if you choose to drive by road. You can go 01 hours 52 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 Upper Alton and Decatur. The current time is 17:10:36.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||03 hours 30 minutes|
|40 mph (64.37 km/h)||02 hours 37 minutes|
|50 mph (80.47 km/h)||02 hours 06 minutes|
|60 mph (96.56 km/h)||01 hours 45 minutes|
|70 mph (112.65 km/h)||01 hours 30 minutes|
|75 mph (120.7 km/h)||01 hours 24 minutes|
|80 mph (128.75 km/h)||01 hours 18 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 14.03 liters (3.71 gallon) of gas to cover the route between Upper Alton and Decatur.
The estimated cost of gas to go from Upper Alton to Decatur is $12.26 (diesel $13.81).
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 $3.306 (Diesel $3.725) /gallon. Last changed prices on January 22, 2022.
The place names are translated into coordinates to approximate the distance between Upper Alton and Decatur (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.