How far is Seymour, IN from Decatur, IN?
The driving distance from Seymour, IN to Decatur, IN is about 181.1 miles (291.5 km), with a travel time of about 03h 00m by car.
- The straight-line flight distance is about 139 miles (223.7 km).
- For a round trip, plan for roughly 06h 00m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 03h 00m.
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.
Town in Fall Creek Township, Madison County, Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Showers And Thunderstorms
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Seymour and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seymour and Decatur.
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1
Start on West 2nd Street
770 ft · 39 sec · West 2nd Street
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2
Turn left onto North Ewing Street
1.6 mi · 4 min · North Ewing Street
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3
Continue straight
3 mi · 4 min
-
4
Enter the roundabout and take exit 2 toward the route
79 m · 15 sec
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5
Exit the roundabout
85 m · 5 sec
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6
Enter the roundabout and take exit 2 toward I 65 North: Indianapolis
130 m · 25 sec
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7
Exit the roundabout onto I 65 North: Indianapolis
796 ft · 19 sec
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8
Merge slight left
47.2 mi · 51 min
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9
Take the exit slight right toward Southport Road
1948 ft · 48 sec
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10
Turn slight right
54 m · 4 sec
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11
Turn straight onto East Southport Road
975 ft · 27 sec · East Southport Road
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12
Turn left onto South Emerson Avenue
2.5 mi · 4 min · South Emerson Avenue
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13
Take the ramp straight
2399 ft · 59 sec
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14
Merge slight left
2.3 mi · 3 min
-
15
Continue straight
11.8 mi · 14 min
-
16
Keep slight right to continue on I 69 North: Fort Wayne
4.2 mi · 6 min
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17
Keep slight left
36.6 mi · 39 min
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18
Take the exit slight right toward SR 332: Frankton, Muncie
1653 ft · 41 sec
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19
Turn right onto West McGalliard Road
10.1 mi · 15 min · West McGalliard Road
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20
Turn left onto North Broadway Avenue
1.8 mi · 3 min · North Broadway Avenue
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21
Continue straight
7.5 mi · 8 min
-
22
Turn straight onto West Walnut Street
18.2 mi · 21 min · West Walnut Street
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23
Turn left onto North Meridian Street
15.1 mi · 17 min · North Meridian Street
-
24
Continue on South Church Avenue
12.6 mi · 14 min · South Church Avenue
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25
Turn right onto West Monroe Street
2422 ft · 41 sec · West Monroe Street
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26
Arrive at your destination
0 m · 1 sec · West Monroe Street
Car Route Details
A richer read on the saved driving route between Seymour and Decatur.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 65 North
Merge slight left
47.2 mi · 00h 51m
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.
Isolated Showers And Thunderstorms leaving Seymour and Slight Chance Rain Showers near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seymour to Decatur?
The road trip is about 181.1 miles (291.5 km) and usually takes 03h 00m 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?
Pendleton is a useful midpoint, sitting about 88.3 miles from Seymour and 92.8 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 139 miles (223.7 km), while the road route adds roughly 42.1 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 EDT. If you want a more comfortable same-day return, try to leave by 12:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.68 one way or $49.36 round trip. Estimated CO2 is about 56.8 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Showers And Thunderstorms around Seymour and Slight Chance Rain Showers near Decatur.
Stop Ideas Near Pendleton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Daleville Town Hall Park and Splash Pad
Noblesville Housing Authority
McCordsville Town Hall
Thomas A. Weaver Municipal Complex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Pendleton.
Indianapolis Union Station
Connersville station
Crawfordsville
Crawfordsville (Bus), Indiana
Flight Path Map
This map shows the direct air route between Seymour and Decatur. Straight-line distance: 138.98 mi (223.66 km).
#1 Seymour
City in Indiana, United States
| Population | 20,096 |
| Coordinates | 38.9592200, -85.8902500 |
| Altitude | 184 |
| Country | United States |
#2 Decatur
City in Indiana, United States
| Population | 34,821 |
| Coordinates | 40.8306000, -84.9291300 |
| Altitude | 244 |
| Country | United States |
End: West Monroe Street (-84.929141, 40.83064)
Estimated Travel Time
Distance: 292 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 02m |
| 40 mph (64.37 km/h) | 04h 31m |
| 50 mph (80.47 km/h) | 03h 37m |
| 60 mph (96.56 km/h) | 03h 01m |
| 70 mph (112.65 km/h) | 02h 35m |
| 80 mph (129 km/h) | 02h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $24.68 | $49.36 |
| Mid-grade | $4.46 | $28.47 | $56.93 |
| Premium | $4.99 | $31.87 | $63.75 |
| Diesel | $6.62 | $42.31 | $84.62 |
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 Indiana · Oct 15, 2026