How far is Machesney Park, IL from Decatur, IL?
The driving distance from Machesney Park, IL to Decatur, IL is about 185.2 miles (298 km), with a travel time of about 03h 03m by car.
- The straight-line flight distance is about 173.2 miles (278.8 km).
- For a round trip, plan for roughly 06h 06m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 03m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Sunny
Slight Chance Showers And Thunderstorms then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Machesney Park and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Machesney Park and Decatur.
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1
Start on Roosevelt Road
2753 ft · 1 min · Roosevelt Road
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2
At the end of the road, turn right onto North Alpine Road
2679 ft · 1 min · North Alpine Road
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3
Turn left onto Harlem Road
1 mi · 2 min · Harlem Road
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4
Turn right onto North Perryville Road
2.3 mi · 4 min · North Perryville Road
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5
Turn left onto East Riverside Boulevard
1.2 km · 1 min · East Riverside Boulevard
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6
Take the ramp slight right
2579 ft · 1 min
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7
Merge slight left onto Jane Addams Memorial Tollway
4.3 mi · 5 min · Jane Addams Memorial Tollway
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8
Keep slight right to continue on I 39, US 51 South: Bloomington
1.3 km · 53 sec
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9
Continue straight
2.1 mi · 2 min
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10
Keep slight right
119.5 mi · 2 hr 8 min
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11
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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12
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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13
Take the exit slight right toward US 51 South, US 51 Business North: Decatur, Bloomington
1616 ft · 40 sec
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14
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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15
Continue on North Walnut Street
23.2 mi · 30 min · North Walnut Street
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16
Turn straight
4.7 mi · 8 min
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17
Turn left onto East Wood Street
91 m · 8 sec · East Wood Street
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18
Arrive at your destination
0 m · 1 sec · East Wood Street
Car Route Details
A richer read on the saved driving route between Machesney Park and Decatur.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 39
Keep slight right
119 mi · 02h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Machesney Park 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 Machesney Park to Decatur?
The road trip is about 185.2 miles (298 km) and usually takes 03h 03m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Lostant is a useful midpoint, sitting about 92.5 miles from Machesney Park and 92.6 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 173.2 miles (278.8 km), while the road route adds roughly 12 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:54 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.62 one way or $49.25 round trip. Estimated CO2 is about 58 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Machesney Park and Slight Chance Showers And Thunderstorms then Mostly Sunny near Decatur.
Stop Ideas Near Lostant
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 Lostant.
Princeton
Mendota station
Pontiac station
Dwight station
Flight Path Map
This map shows the direct air route between Machesney Park and Decatur. Straight-line distance: 173.27 mi (278.85 km).
#1 Machesney Park
Village in the U.
| Population | 22,678 |
| Coordinates | 42.3472400, -89.0390000 |
| Altitude | 226 |
| 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: 298 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 10m |
| 40 mph (64.37 km/h) | 04h 37m |
| 50 mph (80.47 km/h) | 03h 42m |
| 60 mph (96.56 km/h) | 03h 05m |
| 70 mph (112.65 km/h) | 02h 38m |
| 80 mph (129 km/h) | 02h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $24.62 | $49.25 |
| Mid-grade | $4.25 | $27.77 | $55.54 |
| Premium | $4.65 | $30.39 | $60.78 |
| Diesel | $5.30 | $34.64 | $69.27 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.