How far is Decatur, IL from Jasper, IN?
The driving distance from Decatur, IL to Jasper, IN is about 203.1 miles (326.8 km), with a travel time of about 04h 34m by car.
- The straight-line flight distance is about 147.6 miles (237.6 km).
- For a round trip, plan for roughly 09h 08m 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 04h 34m.
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 and the county seat of Jasper County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Decatur and Jasper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Jasper.
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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
1982 ft · 45 sec · South Franklin Street
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3
Turn right onto West Eldorado Street
1.2 mi · 2 min · West Eldorado Street
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4
Turn slight right
3.3 mi · 5 min
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5
Continue on South Mount Zion Road
2.1 mi · 3 min · South Mount Zion Road
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6
Continue on North State Route 121
35.3 mi · 51 min · North State Route 121
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7
Continue on Dewitt Avenue
2 mi · 3 min · Dewitt Avenue
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8
Turn right onto North 19th Street
2731 ft · 60 sec · North 19th Street
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9
At the end of the road, turn left onto Charleston Avenue
117 m · 10 sec · Charleston Avenue
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10
Turn right onto Lakeland Boulevard
3.7 mi · 6 min · Lakeland Boulevard
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11
Take the ramp right toward I-57 South: Effingham
2021 ft · 49 sec
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12
Merge slight left
21.4 mi · 23 min
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13
Take the exit slight right toward US 45: Sigel, Effingham
1753 ft · 35 sec
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14
Turn left
1.9 mi · 3 min
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15
Turn left onto East Fayette Avenue
921 ft · 17 sec · East Fayette Avenue
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16
Turn right onto South Willow Street
2 mi · 3 min · South Willow Street
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17
Continue on County Road 1300
7.4 mi · 11 min · County Road 1300
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18
Continue on West Center Street
13.8 mi · 21 min · West Center Street
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19
Turn right onto South Van Buren Street
11 mi · 15 min · South Van Buren Street
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20
Continue on County Road 1100 East
6.7 mi · 9 min · County Road 1100 East
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21
Continue on North West Street
1.3 mi · 3 min · North West Street
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22
Turn left onto West Butler Street
1.3 mi · 3 min · West Butler Street
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23
Turn right onto North Lincoln Avenue
147 m · 17 sec · North Lincoln Avenue
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24
Turn left onto East Main Street
1.1 mi · 2 min · East Main Street
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25
Turn left
32 mi · 42 min
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26
Keep slight left
33.2 mi · 42 min
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27
Turn sharp right
20.1 mi · 23 min
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28
Turn left onto West 7th Street
85 m · 14 sec · West 7th Street
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29
Turn right onto Main Street
53 m · 10 sec · Main Street
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30
Turn right onto Court House Square
57 m · 16 sec · Court House Square
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31
Arrive at your destination
0 m · 1 sec · Court House Square
Car Route Details
A richer read on the saved driving route between Decatur and Jasper.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
North State Route 121
Continue on North State Route 121
35.3 mi · 00h 51m
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 then Chance Showers And Thunderstorms leaving Decatur and Mostly Sunny then Slight Chance Showers And Thunderstorms near Jasper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Jasper?
The road trip is about 203.1 miles (326.8 km) and usually takes 04h 34m 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?
Newton is a useful midpoint, sitting about 101.5 miles from Decatur and 101.6 miles from Jasper.
How much longer is the road route than the straight-line distance?
The direct path is about 147.6 miles (237.6 km), while the road route adds roughly 55.5 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 7:52 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.00 one way or $54.00 round trip. Estimated CO2 is about 63.6 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Decatur and Jasper, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny then Chance Showers And Thunderstorms around Decatur and Mostly Sunny then Slight Chance Showers And Thunderstorms near Jasper.
Stop Ideas Near Newton
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 Newton.
Effingham
Mattoon station
Centralia station
Mt. Vernon, IL
Flight Path Map
This map shows the direct air route between Decatur and Jasper. Straight-line distance: 147.61 mi (237.55 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 Jasper
City in Dubois County, Indiana, United States
| Population | 15,667 |
| Coordinates | 38.3914400, -86.9311100 |
| Altitude | 142 |
| Country | United States |
End: Jasper (-86.93111, 38.39144)
Estimated Travel Time
Distance: 327 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 45m |
| 40 mph (64.37 km/h) | 05h 04m |
| 50 mph (80.47 km/h) | 04h 03m |
| 60 mph (96.56 km/h) | 03h 23m |
| 70 mph (112.65 km/h) | 02h 54m |
| 80 mph (129 km/h) | 02h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.00 | $54.00 |
| Mid-grade | $4.25 | $30.45 | $60.90 |
| Premium | $4.65 | $33.32 | $66.65 |
| Diesel | $5.30 | $37.98 | $75.95 |
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 · Jul 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.