How far is Decatur, IL from Belvidere, IL?
The driving distance from Decatur, IL to Belvidere, IL is about 183 miles (294.5 km), with a travel time of about 03h 33m by car.
- The straight-line flight distance is about 167.6 miles (269.7 km).
- For a round trip, plan for roughly 07h 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 33m.
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.
City in Marshall County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Belvidere.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Belvidere.
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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
8.9 mi · 10 min
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6
Take the exit slight right toward I 39 North: Rockford
120.7 mi · 2 hr 10 min
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7
Merge slight left
2.2 mi · 3 min
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8
Take the exit slight right toward US 20 East: Belvedere
1251 ft · 31 sec · U.S. Grant Memorial Highway
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9
Keep slight right to continue on U.S. Grant Memorial Highway
6.4 mi · 10 min · U.S. Grant Memorial Highway
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10
Turn slight left
130 m · 19 sec
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11
Turn left onto South State Street
1.6 mi · 4 min · South State Street
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12
Turn right onto East Perry Street
753 ft · 24 sec · East Perry Street
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13
Arrive at your destination
0 m · 1 sec · East Perry Street
Car Route Details
A richer read on the saved driving route between Decatur and Belvidere.
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 North
Take the exit slight right toward I 39 North: Rockford
121 mi · 02h 10m
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.
Slight Chance Showers And Thunderstorms then Mostly Sunny leaving Decatur and Sunny near Belvidere.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Belvidere?
The road trip is about 183 miles (294.5 km) and usually takes 03h 33m 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?
Wenona is a useful midpoint, sitting about 91.6 miles from Decatur and 91.4 miles from Belvidere.
How much longer is the road route than the straight-line distance?
The direct path is about 167.6 miles (269.7 km), while the road route adds roughly 15.4 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 9:54 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.36 one way or $48.72 round trip. Estimated CO2 is about 57.4 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Mostly Sunny around Decatur and Sunny near Belvidere.
Stop Ideas Near Wenona
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 Wenona.
Pontiac station
Princeton
Dwight station
Mendota station
Flight Path Map
This map shows the direct air route between Decatur and Belvidere. Straight-line distance: 167.55 mi (269.65 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 Belvidere
City in Illinois
| Population | 24,731 |
| Coordinates | 42.2639100, -88.8442700 |
| Altitude | 238 |
| Country | United States |
End: Belvidere (-88.84427, 42.26391)
Estimated Travel Time
Distance: 295 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 05m |
| 40 mph (64.37 km/h) | 04h 34m |
| 50 mph (80.47 km/h) | 03h 39m |
| 60 mph (96.56 km/h) | 03h 03m |
| 70 mph (112.65 km/h) | 02h 36m |
| 80 mph (129 km/h) | 02h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $24.36 | $48.72 |
| Mid-grade | $4.25 | $27.47 | $54.95 |
| Premium | $4.65 | $30.06 | $60.13 |
| Diesel | $5.30 | $34.26 | $68.53 |
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.