How far is Lafayette, IN from Knox, IN?
The driving distance from Lafayette, IN to Knox, IN is about 97 miles (156.1 km), with a travel time of about 01h 52m by car.
- The straight-line flight distance is about 81.5 miles (131.2 km).
- For a round trip, plan for roughly 03h 45m 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 01h 52m.
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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Lafayette and Knox.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lafayette and Knox.
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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 · 4 sec · Grant Street
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4
Turn right onto South Street
2.8 mi · 6 min · South Street
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5
Take the ramp right toward I 65 South: Indianapolis
1898 ft · 25 sec
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6
Merge slight left
42.4 mi · 46 min
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7
Keep slight right
5.1 mi · 6 min
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8
Merge slight right
12.5 mi · 15 min
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9
Merge slight right
5.7 mi · 7 min
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10
Take the exit slight right toward I 70: Dayton, Indianapolis
1087 ft · 17 sec
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11
Keep slight left to continue on I 70: Dayton, Indianapolis
44 m · 2 sec
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12
Keep slight left to continue on I 70 East: Dayton
1 km · 1 min
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13
Merge slight left onto Dwight D Eisenhower Highway
25.4 mi · 28 min · Dwight D Eisenhower Highway
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14
Take the exit slight right toward SR 109: Wilkinson, Knightstown
2158 ft · 44 sec
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15
Turn right onto McCullum
1.6 km · 1 min · McCullum
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16
Turn right onto South Grant City Road
2047 ft · 1 min · South Grant City Road
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17
Arrive at your destination
0 m · 1 sec · South Grant City Road
Car Route Details
A richer read on the saved driving route between Lafayette and Knox.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 65 South
Merge slight left
42.4 mi · 00h 46m
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.
Sunny leaving Lafayette and Mostly Sunny near Knox.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lafayette to Knox?
The road trip is about 97 miles (156.1 km) and usually takes 01h 52m 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?
Zionsville is a useful midpoint, sitting about 48.5 miles from Lafayette and 48.5 miles from Knox.
How much longer is the road route than the straight-line distance?
The direct path is about 81.5 miles (131.2 km), while the road route adds roughly 15.5 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 2:44 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.90 one way or $25.79 round trip. Estimated CO2 is about 30.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lafayette and Mostly Sunny near Knox.
Stop Ideas Near Zionsville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Avon Town Hall Park
Carmel City Hall
Carmel Gazebo
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Zionsville.
Indianapolis Union Station
Crawfordsville
Crawfordsville (Bus), Indiana
Lafayette station
Flight Path Map
This map shows the direct air route between Lafayette and Knox. Straight-line distance: 81.52 mi (131.19 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 Knox
City in Center Township, Starke County, Indiana, United States
| Population | 3,552 |
| Coordinates | 39.8231000, -85.5419200 |
| Altitude | 300 |
| Country | United States |
End: Knox (-85.54192, 39.8231)
Estimated Travel Time
Distance: 156 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 13m |
| 40 mph (64.37 km/h) | 02h 25m |
| 50 mph (80.47 km/h) | 01h 56m |
| 60 mph (96.56 km/h) | 01h 36m |
| 70 mph (112.65 km/h) | 01h 23m |
| 80 mph (129 km/h) | 01h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $12.90 | $25.79 |
| Mid-grade | $4.25 | $14.55 | $29.09 |
| Premium | $4.65 | $15.92 | $31.83 |
| Diesel | $5.30 | $18.14 | $36.28 |
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.