How far is Decatur, IL from Godfrey, IL?
The driving distance from Decatur, IL to Godfrey, IL is about 109.3 miles (175.9 km), with a travel time of about 02h 23m by car.
- The straight-line flight distance is about 89.8 miles (144.5 km).
- For a round trip, plan for roughly 04h 47m 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 23m.
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 Montgomery County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Godfrey.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Godfrey.
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1
Start on East Wood Street
91 m · 16 sec · East Wood Street
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2
Turn left onto South Main Street
1.3 mi · 2 min · South Main Street
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3
Turn right onto West South Side Drive
1.5 km · 1 min · West South Side Drive
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4
Turn left onto South Taylorville Road
12.9 mi · 15 min · South Taylorville Road
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5
Continue on County Road 2080 E
18.4 mi · 23 min · County Road 2080 E
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6
Continue on County Road 975 N
3056 ft · 52 sec · County Road 975 N
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7
Continue on Sarpy Street
12.2 mi · 21 min · Sarpy Street
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8
Continue on Front Street
7.6 mi · 11 min · Front Street
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9
Turn left onto I 55 South: East Saint Louis
1822 ft · 44 sec
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10
Merge slight left
32.9 mi · 35 min
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11
Take the exit slight right toward IL 140: Alton, Greenville
1756 ft · 43 sec
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12
Turn right onto East State Street
1 km · 1 min · East State Street
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13
Continue on State Route 140
9.6 mi · 13 min · State Route 140
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14
Continue on East Bethalto Drive
1.8 mi · 4 min · East Bethalto Drive
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15
Continue on East MacArthur Drive
1457 ft · 31 sec · East MacArthur Drive
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16
Take the ramp slight right toward IL 255 North: Godfrey
1631 ft · 40 sec
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17
Merge slight left
7.9 mi · 9 min
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18
Take the exit slight right toward Humbert Road
1742 ft · 40 sec
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19
Turn left onto Humbert Road
2446 ft · 53 sec · Humbert Road
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20
Turn right onto Pearl Street
1365 ft · 43 sec · Pearl Street
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21
Turn left onto Isabel Drive
1150 ft · 51 sec · Isabel Drive
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22
Keep slight right to continue on Isabel Street
46 m · 7 sec · Isabel Street
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23
Arrive at your destination
0 m · 1 sec · Isabel Street
Car Route Details
A richer read on the saved driving route between Decatur and Godfrey.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 55 South
Merge slight left
32.9 mi · 00h 35m
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 Decatur and Mostly Sunny near Godfrey.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Godfrey?
The road trip is about 109.3 miles (175.9 km) and usually takes 02h 23m 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?
Zanesville is a useful midpoint, sitting about 54.6 miles from Decatur and 54.7 miles from Godfrey.
How much longer is the road route than the straight-line distance?
The direct path is about 89.8 miles (144.5 km), while the road route adds roughly 19.5 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 1:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.56 one way or $29.11 round trip. Estimated CO2 is about 34.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near Godfrey.
Stop Ideas Near Zanesville
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 Zanesville.
Carlinville
Springfield station
Alton
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between Decatur and Godfrey. Straight-line distance: 89.79 mi (144.51 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 Godfrey
Village in Madison County, Illinois, United States
| Population | 17,393 |
| Coordinates | 38.9556000, -90.1867800 |
| Altitude | 186 |
| Country | United States |
End: Godfrey (-90.18678, 38.9556)
Estimated Travel Time
Distance: 176 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 38m |
| 40 mph (64.37 km/h) | 02h 43m |
| 50 mph (80.47 km/h) | 02h 11m |
| 60 mph (96.56 km/h) | 01h 49m |
| 70 mph (112.65 km/h) | 01h 33m |
| 80 mph (129 km/h) | 01h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.56 | $29.11 |
| Mid-grade | $4.25 | $16.42 | $32.83 |
| Premium | $4.65 | $17.96 | $35.93 |
| Diesel | $5.30 | $20.47 | $40.95 |
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.