How far is Knox, IN from Lafayette, IN?
The driving distance from Knox, IN to Lafayette, IN is about 80.8 miles (130.1 km), with a travel time of about 01h 33m by car.
- The straight-line flight distance is about 62.1 miles (100 km).
- For a round trip, plan for roughly 03h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 01h 33m.
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.
Unincorporated community in Cass County, Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Knox and Lafayette.
Turn-by-Turn Driving Directions
Step-by-step road directions between Knox and Lafayette.
-
1
Start on the route
25 m · 11 sec
-
2
Turn left onto West John Street
1172 ft · 54 sec · West John Street
-
3
Turn right onto South Heaton Street
1.7 mi · 3 min · South Heaton Street
-
4
Continue on South 400 E
3.9 mi · 5 min · South 400 E
-
5
Continue on S 400 E
1.4 mi · 2 min · S 400 E
-
6
Continue on South 400 East
11.3 mi · 17 min · South 400 East
-
7
Continue on South Huddleston Road
23.9 mi · 35 min · South Huddleston Road
-
8
Turn slight right onto Logansport
1266 ft · 48 sec
-
9
Turn right onto Old State Road 25
1.9 mi · 3 min · Old State Road 25
-
10
At the end of the road, turn left onto Hoosier Heartland Highway
31.4 mi · 39 min · Hoosier Heartland Highway
-
11
Enter the roundabout and take exit 2 toward Hoosier Heartland Highway
72 m · 7 sec · Hoosier Heartland Highway
-
12
Exit the roundabout onto Hoosier Heartland Highway
1943 ft · 41 sec · Hoosier Heartland Highway
-
13
Continue on Schuyler Avenue
1.9 mi · 3 min · Schuyler Avenue
-
14
Turn left onto North 18th Street
1.6 mi · 4 min · North 18th Street
-
15
Turn left onto South Street
151 m · 14 sec · South Street
-
16
Turn right onto Grant Street
11 m · 2 sec · Grant Street
-
17
Turn right onto Douglas Street
50 m · 13 sec · Douglas Street
-
18
Turn left
56 m · 13 sec
-
19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Knox and Lafayette.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Hoosier Heartland Highway
At the end of the road, turn left onto Hoosier Heartland Highway
31.4 mi · 00h 39m
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.
Mostly Sunny leaving Knox and Sunny near Lafayette.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Knox to Lafayette?
The road trip is about 80.8 miles (130.1 km) and usually takes 01h 33m 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?
Dunkirk is a useful midpoint, sitting about 40 miles from Knox and 40.9 miles from Lafayette.
How much longer is the road route than the straight-line distance?
The direct path is about 62.1 miles (100 km), while the road route adds roughly 18.7 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 CDT. If you want a more comfortable same-day return, try to leave by 3:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.75 one way or $21.49 round trip. Estimated CO2 is about 25.3 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Knox and Lafayette, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Knox and Sunny near Lafayette.
Stop Ideas Near Dunkirk
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 Dunkirk.
Lafayette station
Rensselaer
Crawfordsville (Bus), Indiana
Crawfordsville
Flight Path Map
This map shows the direct air route between Knox and Lafayette. Straight-line distance: 62.14 mi (100 km).
#1 Knox
City in Center Township, Starke County, Indiana, United States
| Population | 3,597 |
| Coordinates | 41.2958800, -86.6250100 |
| Altitude | 217 |
| Country | United States |
#2 Lafayette
The most populous city in Tippecanoe County, Indiana.
| Population | 71,484 |
| Coordinates | 40.4167000, -86.8752900 |
| Altitude | 211 |
| Country | United States |
End: (-86.875433, 40.416605)
Estimated Travel Time
Distance: 130 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 41m |
| 40 mph (64.37 km/h) | 02h 01m |
| 50 mph (80.47 km/h) | 01h 37m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 09m |
| 80 mph (129 km/h) | 01h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $10.75 | $21.49 |
| Mid-grade | $4.25 | $12.12 | $24.24 |
| Premium | $4.65 | $13.26 | $26.53 |
| Diesel | $5.30 | $15.12 | $30.23 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.