How far is Alton, IL from Decatur, IL?
Distance by Flight
Shortest distance between Alton and Decatur is 92.84 miles (149.41 km).
Flight distance from Alton, IL to Decatur, IL is 92.84 miles. Estimated flight time is 00 hours 12 minutes.
It takes 00 hours 11 minutes to travel from Alton to Decatur with an airplane (average speed of 550 miles).
Driving distance
The driving distance from Alton, Illinois to Decatur, Illinois is: 107.36 miles (172.78 km) by car.
Driving from Alton to Decatur will take approximately 02 hours 05 minutes.
#1 Alton
City in Madison County, Illinois, United States
| Population | 26049 |
|---|---|
| GPS Coordinates | 38°53'26"N 90°11'3"W |
| Latitude | 38.8906000 |
| Longitude | -90.1842800 |
| Altitude | 150 |
| Country | United States |
#2 Decatur
The most populous city in Macon County, Illinois. It is located on the Sangamon River in central Illinois. Decatur is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the Decatur Museum of Art and History and the Lincoln Log Cabin State Historic Site.
| Population | 70007 |
|---|---|
| GPS Coordinates | 39°50'25"N 88°57'17"W |
| Latitude | 39.8403100 |
| Longitude | -88.9548000 |
| Altitude | 205 |
| Country | United States |
Ending point in Decatur: East Wood Street (-88.954801,39.840341)
Estimated Travel Time Between Alton and Decatur
The distance between Alton and Decatur is 173 km if you choose to drive by road. You can go 01 hours 55 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 Alton and Decatur. The current time is 12:36:45.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 03 hours 34 minutes |
| 40 mph (64.37 km/h) | 02 hours 41 minutes |
| 50 mph (80.47 km/h) | 02 hours 08 minutes |
| 60 mph (96.56 km/h) | 01 hours 47 minutes |
| 70 mph (112.65 km/h) | 01 hours 32 minutes |
| 75 mph (120.7 km/h) | 01 hours 25 minutes |
| 80 mph (128.75 km/h) | 01 hours 20 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 14.34 liters (3.79 gallon) of gas to cover the route between Alton and Decatur.
The estimated cost of gas to go from Alton to Decatur is $13.66 (diesel $16.29).
Illinois gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.61 | $4.11 | $4.55 | $4.3 |
| Total | $13.66 | $15.58 | $17.24 | $16.29 |
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 Illinois ) per gallon of daily gas for calculations is $3.607 (Diesel $4.300) /gallon. Last changed prices on April 19, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between 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.
