How far is Decatur, IN from Frankfort, IN?
The driving distance from Decatur, IN to Frankfort, IN is about 110.7 miles (178.1 km), with a travel time of about 02h 30m by car.
- The straight-line flight distance is about 91.3 miles (147 km).
- For a round trip, plan for roughly 05h 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 02h 30m.
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.
Human settlement in Grant County, Indiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Scattered Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Decatur and Frankfort.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Frankfort.
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1
Start on West Monroe Street
2422 ft · 46 sec · West Monroe Street
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2
Turn right onto North 13th Street
1167 ft · 22 sec · North 13th Street
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3
Turn left onto Nuttman Avenue
1520 ft · 26 sec · Nuttman Avenue
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4
Continue on West 600 N
21.1 mi · 31 min · West 600 N
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5
Continue on East Markle Road
1.1 km · 1 min · East Markle Road
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6
Turn left
1739 ft · 43 sec
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7
Merge slight left
21.6 mi · 23 min
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8
Take the exit slight right toward SR 18: Montpelier, Marion
1618 ft · 31 sec
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9
Keep slight right
49 m · 4 sec
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10
Merge slight left onto East State Road 18
5.8 mi · 7 min · East State Road 18
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11
Turn left onto South Washington Street
3.4 mi · 6 min · South Washington Street
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12
Continue on South Strawtown Pike
18.5 mi · 21 min · South Strawtown Pike
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13
Turn right onto Main Street
2.7 mi · 4 min · Main Street
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14
Continue on East 150 South
1.5 mi · 2 min · East 150 South
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15
Continue on State Road 28
3.2 mi · 5 min · State Road 28
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16
Continue on East 150 South
4 mi · 6 min · East 150 South
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17
Continue on East Jefferson Street
1.5 mi · 2 min · East Jefferson Street
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18
Continue on West Old State Road 28
1.1 km · 1 min · West Old State Road 28
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19
Continue on West 200 South
3.4 mi · 5 min · West 200 South
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20
Enter the roundabout and take exit 2 toward West 200 South
28 m · 2 sec · West 200 South
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21
Exit the roundabout onto West 200 South
693 ft · 13 sec · West 200 South
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22
Enter the roundabout and take exit 2 toward West 200 South
42 m · 2 sec · West 200 South
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23
Exit the roundabout onto West 200 South
734 ft · 14 sec · West 200 South
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24
Enter the roundabout and take exit 2 toward West 200 South
49 m · 3 sec · West 200 South
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25
Exit the roundabout onto West 200 South
6.1 mi · 9 min · West 200 South
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26
Continue on County Road 100 South
7.8 mi · 12 min · County Road 100 South
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27
At the end of the road, turn right
2657 ft · 51 sec
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28
Turn left onto East County Road 50 South
2 mi · 3 min · East County Road 50 South
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29
Continue on East Wabash Street
3.4 mi · 6 min · East Wabash Street
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30
Turn slight right
66 m · 5 sec
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31
Turn slight right onto South Hoke Avenue
55 m · 8 sec · South Hoke Avenue
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32
Turn left onto East Walnut Street
1.2 km · 1 min · East Walnut Street
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33
Turn left onto South Jackson Street
22 m · 1 sec · South Jackson Street
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34
Arrive at your destination
0 m · 1 sec · South Jackson Street
Car Route Details
A richer read on the saved driving route between Decatur and Frankfort.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
East Markle Road
Merge slight left
21.6 mi · 00h 23m
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.
Slight Chance Rain Showers leaving Decatur and Scattered Showers And Thunderstorms near Frankfort.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Frankfort?
The road trip is about 110.7 miles (178.1 km) and usually takes 02h 30m 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?
Jonesboro is a useful midpoint, sitting about 55.2 miles from Decatur and 55.4 miles from Frankfort.
How much longer is the road route than the straight-line distance?
The direct path is about 91.3 miles (147 km), while the road route adds roughly 19.4 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 1:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.06 one way or $30.12 round trip. Estimated CO2 is about 34.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Decatur and Scattered Showers And Thunderstorms near Frankfort.
Stop Ideas Near Jonesboro
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 Jonesboro.
Indianapolis Union Station
Connersville station
Lafayette station
Crawfordsville (Bus), Indiana
Flight Path Map
This map shows the direct air route between Decatur and Frankfort. Straight-line distance: 91.35 mi (147.01 km).
#1 Decatur
City in Indiana, United States
| Population | 34,821 |
| Coordinates | 40.8306000, -84.9291300 |
| Altitude | 244 |
| Country | United States |
#2 Frankfort
County seat in Indiana
| Population | 15,756 |
| Coordinates | 40.2794800, -86.5108400 |
| Altitude | 259 |
| Country | United States |
End: Frankfort (-86.51084, 40.27948)
Estimated Travel Time
Distance: 178 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 41m |
| 40 mph (64.37 km/h) | 02h 45m |
| 50 mph (80.47 km/h) | 02h 12m |
| 60 mph (96.56 km/h) | 01h 50m |
| 70 mph (112.65 km/h) | 01h 34m |
| 80 mph (129 km/h) | 01h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $15.06 | $30.12 |
| Mid-grade | $4.46 | $17.37 | $34.75 |
| Premium | $4.99 | $19.45 | $38.91 |
| Diesel | $6.62 | $25.82 | $51.64 |
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