How far is Portage, IN from Austin, IN?

The driving distance from Portage, IN to Austin, IN is about 234 miles (376.6 km), with a travel time of about 04h 26m by car.

  • The straight-line flight distance is about 207.6 miles (334.1 km).
  • For a round trip, plan for roughly 08h 52m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
234.02 mi
04h 26m
Flight
207.63 mi
334.15 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Portage.

Flight Distance

Direct air line
207.63 mi
Kilometers
334.15 km
Flight Time
00h 25m

Driving Distance

Road route
234.02 mi
Kilometers
376.62 km
Drive Time
04h 26m

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 04h 26m.

Arrival Snapshot
Arrive in Austin
Thu, Apr 16, 3:41 PM EDT
Return by in Portage
Thu, Apr 16, 7:07 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Portage
2026-04-16T10:14
Arrive Austin
Thu, Apr 16, 2:41 PM CDT
Route Timing
04h 26m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
11:26 AM to 1:26 PM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
8:08 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Portage
9:00 PM CDT
Early departure recommended

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.

Mid-route stop
Thorntown
IN

City in Boone County, Indiana, United States of America

From Portage
117.1 mi
02h 13m
To Austin
116.9 mi
02h 13m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
69°F
Thursday

Showers And Thunderstorms Likely

Starts
Thu, Apr 16 6:00 AM CDT
Wind
10 to 15 mph WSW
Destination
78°F
Thursday

Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely

Starts
Thu, Apr 16 6:00 AM EDT
Wind
7 mph SW

Driving Route Map

The map below follows the saved road route between Portage and Austin.

Turn-by-Turn Driving Directions

Step-by-step road directions between Portage and Austin.

  1. 1

    Start on Central Avenue

    1861 ft · 53 sec · Central Avenue

  2. 2

    Turn right onto Willowcreek Road

    2930 ft · 1 min · Willowcreek Road

  3. 3

    Take the ramp slight right toward I 80, I 90

    132 m · 12 sec

  4. 4

    Keep slight right

    673 ft · 16 sec

  5. 5

    Continue straight

    1945 ft · 47 sec

  6. 6

    Merge slight left onto Indiana Toll Road

    2.6 mi · 3 min · Indiana Toll Road

  7. 7

    Take the exit slight right toward I 80 West, I 94, US 6: Des Moines

    3216 ft · 1 min

  8. 8

    Keep slight right to continue on I 94 West, I 80 West, SR 51, US 6 East

    543 ft · 13 sec

  9. 9

    Keep slight left to continue on I 94 West, I 80 West

    2.9 mi · 4 min

  10. 10

    Take the exit slight right toward I 65: Gary, Toll Road, Indianapolis

    1 km · 52 sec

  11. 11

    Keep slight left to continue on I 65 South, I 80 West, I 94 West, US 6 West: Indianapolis, Chicago

    618 ft · 10 sec

  12. 12

    Keep slight left to continue on I 65 South: Indianapolis

    2686 ft · 60 sec

  13. 13

    Merge slight left onto Casimir Pulaski Memorial Highway

    130 mi · 2 hr 21 min · Casimir Pulaski Memorial Highway

  14. 14

    Keep slight left

    17.1 mi · 22 min

  15. 15

    Continue on I 70 East: Dayton

    1.9 mi · 3 min

  16. 16

    Keep slight left

    73.5 mi · 1 hr 21 min

  17. 17

    Take the exit slight right toward US 31: Austin, Crothersville

    1997 ft · 48 sec

  18. 18

    At the end of the road, turn left

    1.9 mi · 3 min

  19. 19

    Turn left onto West Booe Road

    1667 ft · 1 min · West Booe Road

  20. 20

    Arrive at your destination

    0 m · 1 sec · West Booe Road

Car Route Details

A richer read on the saved driving route between Portage and Austin.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
20 steps
3 turns on the saved route
Ramps & Exits
6
2 merges, 4 ramps or exits
Navigation Density
8.5 / 100 mi
Decision points by distance
Main Roads
Casimir Pulaski Memorial Highway
147 mi · 63%
I 70 East
75.5 mi · 32%
I 94 West
3.04 mi · 1%
Indiana Toll Road
2.55 mi · 1%
I 65
0.63 mi
I 65 South
0.63 mi
Longest Stretch

Casimir Pulaski Memorial Highway

Merge slight left onto Casimir Pulaski Memorial Highway

130 mi · 02h 21m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
04h 26m
Long day trip
Same-Day Return
08h 52m
Round-trip wheel time
Road vs Air
+26.4 mi
207.6 mi direct line
Halfway Stop
Thorntown
02h 13m from Portage
Leave By
8:08 AM CDT
Early departure recommended
Weather Watch

Showers And Thunderstorms Likely leaving Portage and Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Austin.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Portage to Austin?

The road trip is about 234 miles (376.6 km) and usually takes 04h 26m in normal driving conditions.

Is this a same-day trip or an overnight route?

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Thorntown is a useful midpoint, sitting about 117.1 miles from Portage and 116.9 miles from Austin.

How much longer is the road route than the straight-line distance?

The direct path is about 207.6 miles (334.1 km), while the road route adds roughly 26.4 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 8:08 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $31.15 one way or $62.30 round trip. Estimated CO2 is about 73.4 kg one way.

Do you cross a time zone on this route?

Yes. There is about a 1 hour time difference between Portage and Austin, so arrival and return times should be read in local time.

What should you check before leaving?

Before you leave, expect Showers And Thunderstorms Likely around Portage and Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Austin.

Stop Ideas Near Thorntown

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Thorntown and the surrounding midpoint area.
Town of Mulberry - Town Hall & Municipal Utilities
Scenic stop 11.6 mi away

Town of Mulberry - Town Hall & Municipal Utilities

Mulberry , IN
123 S Glick St, Mulberry, IN 46058, United States
Park,Municipal corporation,City or town hall,Public library,Water works
Stop photo coming soon
Meeting point 12.3 mi away

Darlington Municipal Utilities

Darlington , IN
222 W Main St, Darlington, IN 47940
Rating 5.0/5 1 reviews City Hall

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Thorntown.

BUS

Crawfordsville (Bus), Indiana

26 mi away
1000 Smith Ave
RAIL

Crawfordsville

27 mi away
Spring and Green Streets
RAIL

Lafayette station

41 mi away
200 North 2nd St.
RAIL

Indianapolis Union Station

56 mi away
350 South Illinois Street

Flight Path Map

This map shows the direct air route between Portage and Austin. Straight-line distance: 207.63 mi (334.15 km).

Portage

#1 Portage

The second most populous city in Porter County, Indiana.

Population90,543
Coordinates41.5758700, -87.1761500
Altitude194
CountryUnited States
Austin

#2 Austin

Small city in Indiana, USA

Population4,094
Coordinates38.7583900, -85.8080300
Altitude170
CountryUnited States
Start: Portage (-87.17615, 41.57587)
End: Austin (-85.80803, 38.75839)

Estimated Travel Time

Distance: 377 km by road

SpeedTime
30 mph (48.3 km/h)07h 47m
40 mph (64.37 km/h)05h 51m
50 mph (80.47 km/h)04h 40m
60 mph (96.56 km/h)03h 54m
70 mph (112.65 km/h)03h 20m
80 mph (129 km/h)02h 55m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
8.26 gal
31.26 L · about $31.15
Round trip
$62.30
16.52 gal · 62.52 L
Estimated CO2
73.4 kg one way
Round trip: 146.8 kg / 324 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $31.15 $62.30
Mid-grade $4.25 $35.13 $70.26
Premium $4.65 $38.44 $76.88
Diesel $5.30 $43.81 $87.62

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 16, 2026

Please keep in mind that there is a 1 hour time gap between Portage, IN and Austin, IN. The current time in Portage is 10:14:41, although it is 11:14:41 in Austin.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.