How far is Rock Island, IL from Decatur, IL?

Distance by Flight

Shortest distance between Rock Island and Decatur is 143.32 miles (230.65 km).

Flight distance from Rock Island, IL to Decatur, IL is 143.32 miles. Estimated flight time is 00 hours 21 minutes.

It takes 00 hours 19 minutes to travel from Rock Island to Decatur with an airplane (average speed of 550 miles).

Driving distance

The driving distance from Rock Island, Illinois to Decatur, Illinois is: 180.06 miles (289.78 km) by car.

Driving from Rock Island to Decatur will take approximately 02 hours 58 minutes.

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#1 Rock Island

City in Illinois

Population 36870
GPS Coordinates 41°30'34"N 90°34'44"W
Latitude 41.5094800
Longitude -90.5787500
Altitude 171
Country United States
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#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

Estimated Travel Time Between Rock Island and Decatur

The distance between Rock Island and Decatur is 290 km if you choose to drive by road. You can go 03 hours 13 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 Island and Decatur. The current time is 12:01:49.

Average Speed Travel Time
30 mph (48.3 km/h) 05 hours 59 minutes
40 mph (64.37 km/h) 04 hours 30 minutes
50 mph (80.47 km/h) 03 hours 36 minutes
60 mph (96.56 km/h) 03 hours 00 minutes
70 mph (112.65 km/h) 02 hours 34 minutes
75 mph (120.7 km/h) 02 hours 24 minutes
80 mph (128.75 km/h) 02 hours 14 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 24.05 liters (6.35 gallon) of gas to cover the route between Rock Island and Decatur.
The estimated cost of gas to go from Rock Island to Decatur is $22.92 (diesel $27.32).

Illinois gas prices.

Gasoline Mid Grade Premium Diesel
Gallon $3.61 $4.11 $4.55 $4.3
Total $22.92 $26.13 $28.92 $27.32

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 July 15, 2024.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Rock Island and Decatur (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

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Driving distance from Bremen, IL to Rock Island 309.52 miles (498 km)

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Driving distance from Springfield, IL to Rock Island 172.24 miles (277 km)

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Driving distance from York, IL to Rock Island 291.05 miles (468 km)

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Driving distance from Aurora, IL to Rock Island 147.31 miles (237 km)

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Driving distance from Berwyn, IL to Rock Island 173.88 miles (280 km)

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Driving distance from Bloomington, IL to Rock Island 139.49 miles (224 km)

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Driving distance from Champaign, IL to Rock Island 190.87 miles (307 km)

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Driving distance from Chicago, IL to Rock Island 179.85 miles (289 km)

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Driving distance from Cicero, IL to Rock Island 175.41 miles (282 km)

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Driving distance from Des Plaines, IL to Rock Island 180.93 miles (291 km)

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Driving distance from Elgin, IL to Rock Island 171.75 miles (276 km)

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