How far is Sterling, IL from Decatur, IL?
The driving distance from Sterling, IL to Decatur, IL is about 173 miles (278.4 km), with a travel time of about 02h 55m by car.
- The straight-line flight distance is about 140.1 miles (225.4 km).
- For a round trip, plan for roughly 05h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 55m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Sterling and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sterling and Decatur.
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1
Start on Locust Street
764 ft · 15 sec · Locust Street
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2
Keep slight right to continue on East 2nd Street
144 m · 10 sec · East 2nd Street
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3
Turn straight onto 1st Avenue
1.5 mi · 2 min · 1st Avenue
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4
Turn left onto East Rock Falls Road
18.8 mi · 26 min · East Rock Falls Road
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5
Turn right
17.9 mi · 27 min
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6
Turn right
2324 ft · 44 sec
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7
Turn left onto Meriden Street
2622 ft · 57 sec · Meriden Street
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8
Continue on 12th Street
1265 ft · 37 sec · 12th Street
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9
Turn right onto 4th Avenue
114 m · 20 sec · 4th Avenue
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10
Turn sharp left onto 12th Street
1 mi · 2 min · 12th Street
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11
Continue on North 43rd Road
1.5 mi · 2 min · North 43rd Road
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12
Take the ramp right toward I 39 South, US 51 South: LaSalle, Peru
1699 ft · 41 sec
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13
Merge slight left
71.2 mi · 1 hr 16 min
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14
Keep slight right to continue on I 55 South, US 51 South: Peoria, Champaign, Saint Louis, Decatur
7.6 mi · 8 min
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15
Keep slight left to continue on I 74 East, US 51 South, US 55 Business North: Indianapolis, Decatur
2.1 mi · 2 min
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16
Take the exit slight right toward US 51 South, US 51 Business North: Decatur, Bloomington
1616 ft · 40 sec
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17
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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18
Continue on North Walnut Street
23.2 mi · 30 min · North Walnut Street
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19
Turn straight
4.7 mi · 8 min
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20
Turn left onto East Wood Street
91 m · 8 sec · East Wood Street
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21
Arrive at your destination
0 m · 1 sec · East Wood Street
Car Route Details
A richer read on the saved driving route between Sterling and Decatur.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
I 39 South
Merge slight left
71.2 mi · 01h 16m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Sterling and Slight Chance Showers And Thunderstorms then Mostly Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sterling to Decatur?
The road trip is about 173 miles (278.4 km) and usually takes 02h 55m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Rutland is a useful midpoint, sitting about 83.1 miles from Sterling and 89.8 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 140.1 miles (225.4 km), while the road route adds roughly 32.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 12:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.00 one way or $46.01 round trip. Estimated CO2 is about 54.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Sterling and Slight Chance Showers And Thunderstorms then Mostly Sunny near Decatur.
Stop Ideas Near Rutland
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Rutland.
Pontiac station
Dwight station
Uptown Station
Princeton
Flight Path Map
This map shows the direct air route between Sterling and Decatur. Straight-line distance: 140.09 mi (225.45 km).
#1 Sterling
City in Whiteside County, Illinois, United States
| Population | 14,313 |
| Coordinates | 41.7886400, -89.6962200 |
| Altitude | 201 |
| Country | United States |
#2 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
End: East Wood Street (-88.954801, 39.840341)
Estimated Travel Time
Distance: 278 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 45m |
| 40 mph (64.37 km/h) | 04h 19m |
| 50 mph (80.47 km/h) | 03h 27m |
| 60 mph (96.56 km/h) | 02h 52m |
| 70 mph (112.65 km/h) | 02h 28m |
| 80 mph (129 km/h) | 02h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $23.00 | $46.01 |
| Mid-grade | $4.25 | $25.94 | $51.89 |
| Premium | $4.65 | $28.39 | $56.78 |
| Diesel | $5.30 | $32.35 | $64.71 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Illinois · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.