How far is Lafayette, IN from Decatur, IN?
The driving distance from Lafayette, IN to Decatur, IN is about 119.6 miles (192.4 km), with a travel time of about 02h 42m by car.
- The straight-line flight distance is about 106 miles (170.6 km).
- For a round trip, plan for roughly 05h 24m 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 42m.
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.
City in Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Lafayette and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lafayette and Decatur.
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1
Start on the route
56 m · 16 sec
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2
Turn right onto Douglas Street
50 m · 8 sec · Douglas Street
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3
Turn left onto Grant Street
11 m · 7 sec · Grant Street
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4
Turn left onto South Street
151 m · 16 sec · South Street
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5
Turn right onto North 18th Street
1.6 mi · 4 min · North 18th Street
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6
Turn right onto Schuyler Avenue
1.9 mi · 3 min · Schuyler Avenue
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7
Continue on Hoosier Heartland Highway
1966 ft · 39 sec · Hoosier Heartland Highway
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8
Enter the roundabout and take exit 1 toward the route
3 m · 1 sec
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9
Exit the roundabout
35.2 mi · 44 min
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10
Continue on Logansport Bypass
2.5 mi · 3 min · Logansport Bypass
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11
Turn left onto Wabash Road
44.6 mi · 56 min · Wabash Road
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12
Continue on West Park Drive
1.9 mi · 4 min · West Park Drive
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13
Turn right onto Cherry Street
1379 ft · 27 sec · Cherry Street
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14
Turn right onto North Jefferson Street
1.7 mi · 3 min · North Jefferson Street
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15
Continue on West Markle Road
1.7 mi · 2 min · West Markle Road
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16
Continue on South Jefferson Street
5.6 mi · 8 min · South Jefferson Street
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17
Turn straight onto East Markle Road
126 m · 7 sec · East Markle Road
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18
Continue on West Logan Street
21.1 mi · 31 min · West Logan Street
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19
Continue on Nuttman Avenue
1520 ft · 30 sec · Nuttman Avenue
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20
Turn right onto North 13th Street
1167 ft · 23 sec · North 13th Street
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21
Turn left onto West Monroe Street
2422 ft · 41 sec · West Monroe Street
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22
Arrive at your destination
0 m · 1 sec · West Monroe Street
Car Route Details
A richer read on the saved driving route between Lafayette and Decatur.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Wabash Road
Turn left onto Wabash Road
44.6 mi · 00h 56m
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.
Partly Cloudy leaving Lafayette and Mostly Cloudy near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lafayette to Decatur?
The road trip is about 119.6 miles (192.4 km) and usually takes 02h 42m 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?
Peru is a useful midpoint, sitting about 59.7 miles from Lafayette and 59.9 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 106 miles (170.6 km), while the road route adds roughly 13.6 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 1:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.91 one way or $31.83 round trip. Estimated CO2 is about 37.5 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Lafayette and Mostly Cloudy near Decatur.
Stop Ideas Near Peru
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 Peru.
Lafayette station
Rensselaer
Crawfordsville (Bus), Indiana
Elkhart station
Flight Path Map
This map shows the direct air route between Lafayette and Decatur. Straight-line distance: 105.99 mi (170.57 km).
#1 Lafayette
The most populous city in Tippecanoe County, Indiana.
| Population | 71,484 |
| Coordinates | 40.4167000, -86.8752900 |
| Altitude | 211 |
| Country | United States |
#2 Decatur
City in Indiana, United States
| Population | 34,821 |
| Coordinates | 40.8306000, -84.9291300 |
| Altitude | 244 |
| Country | United States |
End: Decatur (-84.92913, 40.8306)
Estimated Travel Time
Distance: 192 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 59m |
| 40 mph (64.37 km/h) | 02h 59m |
| 50 mph (80.47 km/h) | 02h 23m |
| 60 mph (96.56 km/h) | 01h 59m |
| 70 mph (112.65 km/h) | 01h 42m |
| 80 mph (129 km/h) | 01h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.91 | $31.83 |
| Mid-grade | $4.25 | $17.95 | $35.90 |
| Premium | $4.65 | $19.64 | $39.28 |
| Diesel | $5.30 | $22.38 | $44.77 |
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 · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.