How far is Decatur, IL from Washington, IL?
The driving distance from Decatur, IL to Washington, IL is about 80.2 miles (129 km), with a travel time of about 01h 46m by car.
- The straight-line flight distance is about 64.2 miles (103.4 km).
- For a round trip, plan for roughly 03h 32m 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 01h 46m.
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.
Township in Henry County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain And Snow Showers then Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Washington.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Washington.
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1
Start on East Wood Street
155 m · 23 sec · East Wood Street
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2
Turn left onto South Franklin Street
2129 ft · 46 sec · South Franklin Street
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3
Continue on North Water Street
27.4 mi · 37 min · North Water Street
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4
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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5
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
8 mi · 9 min
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6
Take the exit slight right toward I 74 West: Peoria
15.6 mi · 17 min
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7
Take the exit slight right toward IL 117: Goodfield
1470 ft · 32 sec
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8
Turn left onto South Eureka Street
1609 ft · 42 sec · South Eureka Street
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9
At the end of the road, turn right onto West Martin Drive
1.2 km · 1 min · West Martin Drive
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10
Continue on County Road 1300 East
1108 ft · 19 sec · County Road 1300 East
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11
Turn right onto County Line Road
2.1 mi · 5 min · County Line Road
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12
At the end of the road, turn left
1.5 km · 1 min
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13
Turn right onto Dee-Mac Road
1.1 km · 1 min · Dee-Mac Road
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14
Continue on Dee-Mack Road
5.5 mi · 8 min · Dee-Mack Road
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15
Turn left onto Eureka Road
2 mi · 4 min · Eureka Road
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16
Continue on Walnut Street
1 mi · 2 min · Walnut Street
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17
Enter the roundabout and take exit 2 toward Peoria Street
91 m · 16 sec · Peoria Street
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18
Exit the roundabout onto Peoria Street
47 m · 7 sec · Peoria Street
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19
Turn right
28 m · 7 sec
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20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Decatur and Washington.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
North Water Street
Continue on North Water Street
27.4 mi · 00h 37m
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.
Slight Chance Rain And Snow Showers then Sunny leaving Decatur and Sunny near Washington.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Washington?
The road trip is about 80.2 miles (129 km) and usually takes 01h 46m 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?
Burns is a useful midpoint, sitting about 40.1 miles from Decatur and 40.1 miles from Washington.
How much longer is the road route than the straight-line distance?
The direct path is about 64.2 miles (103.4 km), while the road route adds roughly 16 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 2:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.67 one way or $21.34 round trip. Estimated CO2 is about 25.2 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain And Snow Showers then Sunny around Decatur and Sunny near Washington.
Stop Ideas Near Burns
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall - Town of Normal
City of Bloomington, Illinois
Bloomington Finance Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Burns.
Uptown Station
Lincoln
Pontiac station
Peoria, Illinois
Flight Path Map
This map shows the direct air route between Decatur and Washington. Straight-line distance: 64.24 mi (103.39 km).
#1 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
#2 Washington
City in Tazewell County, Illinois
| Population | 16,395 |
| Coordinates | 40.7036500, -89.4073100 |
| Altitude | 232 |
| Country | United States |
End: Washington (-89.40731, 40.70365)
Estimated Travel Time
Distance: 129 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 40m |
| 40 mph (64.37 km/h) | 02h 00m |
| 50 mph (80.47 km/h) | 01h 36m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 08m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $10.67 | $21.34 |
| Mid-grade | $4.25 | $12.04 | $24.07 |
| Premium | $4.65 | $13.17 | $26.34 |
| Diesel | $5.30 | $15.01 | $30.02 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.