How far is Knox, IN from Portage, IN?
The driving distance from Knox, IN to Portage, IN is about 44.7 miles (71.9 km), with a travel time of about 00h 56m by car.
- The straight-line flight distance is about 34.5 miles (55.5 km).
- For a round trip, plan for roughly 01h 52m 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 00h 56m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in LaPorte County, Indiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Knox and Portage.
Turn-by-Turn Driving Directions
Step-by-step road directions between Knox and Portage.
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1
Start on the route
25 m · 11 sec
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2
Turn left onto West John Street
1172 ft · 57 sec · West John Street
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3
Turn left onto South Heaton Street
2116 ft · 53 sec · South Heaton Street
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4
Continue on North 400 East
6.5 mi · 9 min · North 400 East
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5
Turn left
1507 ft · 41 sec
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6
Merge slight left
21.3 mi · 27 min
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7
Take the exit slight right toward SR 49 North, SR 2 East: Valparaiso, Chesterton
9.2 mi · 13 min
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8
Turn left onto I 80, I 90: Toll Road
120 m · 10 sec
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9
Continue straight
757 ft · 18 sec
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10
Continue on I 80, I 90: Toll Road
125 m · 10 sec
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11
Keep slight right to continue on I 80 West, I 90 West: Chicago
1246 ft · 31 sec
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12
Merge slight left onto Indiana Toll Road
6.5 mi · 8 min · Indiana Toll Road
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13
Take the exit slight right toward Portage
3121 ft · 1 min
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14
Keep slight left
47 m · 11 sec
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15
Turn left onto Willowcreek Road
3071 ft · 1 min · Willowcreek Road
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16
Turn left onto Central Avenue
1906 ft · 50 sec · Central Avenue
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17
Arrive at your destination
0 m · 1 sec · Central Avenue
Car Route Details
A richer read on the saved driving route between Knox and Portage.
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 400 East
Merge slight left
21.3 mi · 00h 27m
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.
Showers And Thunderstorms leaving Knox and Rain Showers Likely near Portage.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Knox to Portage?
The road trip is about 44.7 miles (71.9 km) and usually takes 00h 56m 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?
Wanatah is a useful midpoint, sitting about 23.2 miles from Knox and 21.4 miles from Portage.
How much longer is the road route than the straight-line distance?
The direct path is about 34.5 miles (55.5 km), while the road route adds roughly 10.2 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 4:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.96 one way or $11.92 round trip. Estimated CO2 is about 14 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Knox and Rain Showers Likely near Portage.
Stop Ideas Near Wanatah
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 Wanatah.
Michigan City
Gary, IN
New Buffalo, Michigan
New Buffalo
Flight Path Map
This map shows the direct air route between Knox and Portage. Straight-line distance: 34.49 mi (55.5 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 Portage
The second most populous city in Porter County, Indiana.
| Population | 90,543 |
| Coordinates | 41.5758700, -87.1761500 |
| Altitude | 194 |
| Country | United States |
End: Central Avenue (-87.17615, 41.575874)
Estimated Travel Time
Distance: 72 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 29m |
| 40 mph (64.37 km/h) | 01h 07m |
| 50 mph (80.47 km/h) | 00h 53m |
| 60 mph (96.56 km/h) | 00h 44m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $5.96 | $11.92 |
| Mid-grade | $4.25 | $6.72 | $13.44 |
| Premium | $4.65 | $7.35 | $14.71 |
| Diesel | $5.30 | $8.38 | $16.76 |
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 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.