Origin
Thorntown, IN
Afternoon in Thorntown on Friday
Local time
4:56 PM
EDT
Current temp
53°F
Unavailable
Live forecast
Trip from Thorntown, IN to Portage, IN
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards
Drive Time
2h 26m
Distance
125.3 mi
202 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$20
one way
EV Charging
Unknown
Best Time to Leave
4 AM
2h 17m
★
6 AM
2h 27m
8 AM
2h 47m
10 AM
2h 34m
12 PM
2h 32m
3 PM
2h 35m
5 PM
2h 46m
8 PM
2h 21m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Thorntown, IN
Vladislav Anchuk
Portage, IN
Wikimedia Commons
Trip Overview
This 125.3-mile journey from Thorntown, Indiana, to Portage, Indiana, is designed as a straightforward, single-day trip, taking approximately 2 hours and 26 minutes. Primarily utilizing I-65, with brief stretches on Central Avenue and IN-47, this route is almost entirely highway driving at 94%. You can expect a fuel cost of around $20 for this relatively short distance. The drive is efficient, making it a practical option for a quick transition between points within the Midwest region. Since there are no designated stops in the data, you'll have the flexibility to manage your own breaks along the way.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
62.6 miles from Thorntown, IN
A natural place for your longest stop of the day , about 1h 12m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 26m. Total distance: 125.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 26m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (94%). Straightforward navigation.
Drive Character
Expect a decidedly highway-focused experience for most of this drive, with 94% of the route on high-speed roads. The bulk of your travel will occur on I-65, including a significant uninterrupted stretch of 113.3 miles. This means you'll encounter consistent speeds and minimal traffic interruptions for the majority of the trip. While the profile is predominantly highway, the initial and final segments may involve navigating local roads like Central Avenue and IN-47 as you enter and exit Thorntown and approach Portage, offering a brief change of pace before you reach your destination.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 10 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 65 is the longest continuous segment at about 113.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 65 and Central Avenue. There are only a few real navigation decisions along the way. The trickiest moment comes around 4.8 miles in.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 2h 26m drive. You will face about 4 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 4.8 miles: Navigation decision point; at 5.1 miles (I 65): Merge point - match speed before joining. Lane positioning matters here; at 118.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
4 of 4 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
4.8 mi into trip
|
~8m in
Take the ramp toward Chicago
Navigation decision point
Toward Chicago
5
5.1 mi into trip
|
~9m in
|
I 65
Merge onto I 65
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
118.4 mi into trip
|
~2h 12m in
Take the exit toward I 80 East, I 94 East, US 6 East: Toledo, Detroit
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 259B
Toward I 80 East, I 94 East, US 6 East: Toledo,...
8
119.3 mi into trip
|
~2h 14m in
Keep slight right at fork toward Central Avenue
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Exit 13
Toward Central Avenue
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Thorntown, IN to Portage, IN, road signs begin pointing toward Detroit along the way.
Detroit
118.4 mi in
|
~2h 12m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 65 | 113.3 mi | 2h 3m |
| Central Avenue | 5.7 mi | 11m |
| IN-47 | 4.4 mi | 7m |
| West Main Street | 0.4 mi | <1m |
Longest stretch:
I 65
— 113.3 mi, about 2h 3m
Turn-by-Turn Driving Directions
Step-by-step road directions between Thorntown, IN and Portage, IN.
1
Start on SR 47
0.4 mi
·
37 sec
·
West Main Street
2
Continue on SR 47
4.4 mi
·
7 min
·
IN-47
3
Take the ramp
0.1 mi
·
17 sec
Toward Chicago
4
Continue on this road
0.2 mi
·
25 sec
·
this road
Toward Chicago
5
Merge onto I 65
113 mi
·
2 hr 3 min
·
I 65
Use the straight / slight right lanes.
6
Take the exit
0.9 mi
·
1 min
Exit 259B
Toward I 80 East, I 94 East, US 6 East: Toledo, Detroit
Use the slight right lane.
7
Keep slight right at fork
0.3 mi
·
37 sec
Exit 13
Toward Central Avenue
Use the slight right lane.
8
Turn right onto Central Avenue
4.3 mi
·
8 min
·
Central Avenue
9
Continue on Central Avenue
1.4 mi
·
3 min
·
Central Avenue
10
Arrive at destination
Central Avenue
Trip Plan
Given its manageable 2-hour 26-minute duration, this route is best tackled in one go, allowing for maximum flexibility. Departing in the morning should help you avoid potential afternoon traffic, especially as you approach the Portage area. With a fuel cost estimated at $20, it's wise to ensure your tank is full before leaving Thorntown to maximize your time on the road. The longest stretch without a significant change in road type is 113.3 miles on I-65, so plan your personal comfort breaks accordingly before you embark on that extended highway segment.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 62.6 miles from Thorntown, IN, or about 1h 12m into the drive.
The longest continuous stretch on this route runs about 113.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 28 miles or 34m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 62.6 miles or 1h 12m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 55m
Traffic, exits, and arrival timing usually matter more near Portage, IN than in the middle of the route.
Before You Leave
+
Open the route before leaving Thorntown, IN so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Thorntown, IN
This is one driving day of about 125.3 miles and 2h 26m.
Your first comfortable stop window is around 28 miles from Thorntown, IN.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 65 for about 113.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 62.6 mi from Thorntown, IN · 1h 12m into the drive
Mid-route town
Meal stop
63 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 28 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 62.6 miles from Thorntown, IN, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 65 if your tank is already low. That segment runs about 113.3 miles.
Arriving in Portage, IN
The final approach into Portage, IN usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Portage, IN.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$19.59 one way
$39.18 round trip
$3.97/gal
25.4 MPG avg
44 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $21.51 | $43.02 |
| premium | $4.89 | $24.11 | $48.23 |
| diesel | $5.61 | $27.66 | $55.33 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 43.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging · 0 stops · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 37.6 | 0 | $13.16 | $6.01 |
| Efficient EV | 31.3 | 0 | $10.96 | $5.01 |
| EV Truck/SUV | 50.1 | 0 | $17.54 | $8.02 |
Gas CO2
44 kg
EV CO2
15 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Portage, IN
Afternoon in Portage on Friday
Local time
3:56 PM
CDT
Current temp
50°F
Unavailable
Live forecast
72°F
Shelby, IN
63 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
3 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 26m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Thorntown, IN to Portage, IN covers 125.3 miles and takes about 2h 26m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 65, Central Avenue, IN-47. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 62.6 miles from Thorntown, IN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $19.59 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a straightforward 2h 26m drive. You will face about 4 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: at 4.8 miles: Navigation decision point; at 5.1 miles (I 65): Merge point - match speed before joining. Lane positioning matters here; at 118.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
On the drive from Thorntown, IN to Portage, IN, road signs begin pointing toward Detroit along the way.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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