How far is Round Lake, IL from Decatur, IL?
Distance by Flight
Shortest distance between Round Lake and Decatur is 179.33 miles (288.61 km).
Flight distance from Round Lake, IL to Decatur, IL is 179.33 miles. Estimated flight time is 00 hours 25 minutes.
It takes 00 hours 22 minutes to travel from Round Lake to Decatur with an airplane (average speed of 550 miles).
Driving distance
The driving distance from Round Lake, Illinois to Decatur, Illinois is: 209.91 miles (337.82 km) by car.
Driving from Round Lake to Decatur will take approximately 03 hours 38 minutes.
#1 Round Lake
City in Illinois, United States of America
| Population | 17982 |
|---|---|
| GPS Coordinates | 42°21'12"N 88°5'36"W |
| Latitude | 42.3533600 |
| Longitude | -88.0934100 |
| Altitude | 243 |
| 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 Round Lake and Decatur
The distance between Round Lake and Decatur is 338 km if you choose to drive by road. You can go 03 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 Round Lake and Decatur. The current time is 06:34:20.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 06 hours 59 minutes |
| 40 mph (64.37 km/h) | 05 hours 14 minutes |
| 50 mph (80.47 km/h) | 04 hours 11 minutes |
| 60 mph (96.56 km/h) | 03 hours 29 minutes |
| 70 mph (112.65 km/h) | 02 hours 59 minutes |
| 75 mph (120.7 km/h) | 02 hours 47 minutes |
| 80 mph (128.75 km/h) | 02 hours 37 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 28.04 liters (7.41 gallon) of gas to cover the route between Round Lake and Decatur.
The estimated cost of gas to go from Round Lake to Decatur is $26.72 (diesel $31.85).
Illinois gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.61 | $4.11 | $4.55 | $4.3 |
| Total | $26.72 | $30.46 | $33.71 | $31.85 |
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 December 22, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Round Lake and Decatur (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
