How far is Decatur, IN from Auburn, IN?
The driving distance from Decatur, IN to Auburn, IN is about 43.7 miles (70.3 km), with a travel time of about 00h 53m by car.
- The straight-line flight distance is about 37.7 miles (60.6 km).
- For a round trip, plan for roughly 01h 47m 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 00h 53m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Decatur and Auburn.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Auburn.
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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
15.9 mi · 18 min · North 13th Street
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3
Continue on Lafayette Street
4.7 mi · 6 min · Lafayette Street
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4
Keep slight right to continue on Lafayette Street
1.4 km · 1 min · Lafayette Street
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5
Continue on Spy Run Avenue
1.1 mi · 2 min · Spy Run Avenue
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6
Continue on North Clinton Street
2084 ft · 28 sec · North Clinton Street
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7
Continue on North Clinton Street
2434 ft · 41 sec · North Clinton Street
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8
Keep slight left to continue on Coldwater Road
1.6 mi · 3 min · Coldwater Road
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9
Take the ramp slight right toward I 69 North
2849 ft · 1 min
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10
Merge slight left
2.2 mi · 3 min
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11
Keep slight left
14 mi · 15 min
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12
Take the exit slight right toward SR 8: Garrett, Auburn
1208 ft · 24 sec
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13
Keep slight right
35 m · 3 sec
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14
Turn right
1.1 mi · 2 min
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15
Arrive at your destination
0 m · 1 sec · West 7th Street
Car Route Details
A richer read on the saved driving route between Decatur and Auburn.
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.
North 13th Street
Turn right onto North 13th Street
15.9 mi · 00h 18m
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 Showers And Thunderstorms near Auburn.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Auburn?
The road trip is about 43.7 miles (70.3 km) and usually takes 00h 53m 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?
Indian Village is a useful midpoint, sitting about 21.8 miles from Decatur and 21.8 miles from Auburn.
How much longer is the road route than the straight-line distance?
The direct path is about 37.7 miles (60.6 km), while the road route adds roughly 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 4:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.95 one way or $11.89 round trip. Estimated CO2 is about 13.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Decatur and Showers And Thunderstorms near Auburn.
Stop Ideas Near Indian Village
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 Indian Village.
Waterloo
Bryan
Elkhart station
South Bend station
Flight Path Map
This map shows the direct air route between Decatur and Auburn. Straight-line distance: 37.67 mi (60.63 km).
#1 Decatur
City in Indiana, United States
| Population | 34,821 |
| Coordinates | 40.8306000, -84.9291300 |
| Altitude | 244 |
| Country | United States |
#2 Auburn
City in DeKalb County, Indiana, United States
| Population | 13,617 |
| Coordinates | 41.3669900, -85.0588600 |
| Altitude | 264 |
| Country | United States |
End: Auburn (-85.05886, 41.36699)
Estimated Travel Time
Distance: 70 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 27m |
| 40 mph (64.37 km/h) | 01h 05m |
| 50 mph (80.47 km/h) | 00h 52m |
| 60 mph (96.56 km/h) | 00h 43m |
| 70 mph (112.65 km/h) | 00h 37m |
| 80 mph (129 km/h) | 00h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $5.95 | $11.89 |
| Mid-grade | $4.46 | $6.86 | $13.72 |
| Premium | $4.99 | $7.68 | $15.36 |
| Diesel | $6.62 | $10.20 | $20.39 |
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