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Trip from Thorntown, IN to Portage, IN

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 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

Save up to 30 min
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.

Downtown Thorntown, IN, IN

Thorntown, IN

Vladislav Anchuk

city in Porter County, Indiana, United States

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 .

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.

census-designated place in Indiana, United States

Mid-route town

Meal stop

Shelby, IN

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

West Lafayette, IN

Fuel and coffee

A short stop after about 28 miles helps settle the day before fatigue starts building.

Shelby, IN

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 check

Top up before I 65 if your tank is already low. That segment runs about 113.3 miles.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Nearby Places

Restaurants, cafes, gas stations and more along your route.

Top Restaurant

FLUID Coffee Roasters

4.7 ★ ★ ★ ★ ★

Crown Point, Indiana

Near the end, short detour

1.3 mi from route ~3 min detour mile 107.4

Hours: 6 am–6 pm

+12192132044

Visit website

TC's Restaurant & Tavern

4.7 ★ ★ ★ ★ ★

Battle Ground, Indiana

2.3 mi

Top Coffee Stop

Smalltown Coffee Company

4.9 ★ ★ ★ ★ ★

Crown Point, Indiana

Near the end, short detour

2.3 mi from route ~6 min detour $1 to $10 mile 107.4

Hours: 7 am–3 pm

+12193233948

Visit website

Sip Coffee House & Artisan Cafe

4.5 ★ ★ ★ ★ ★

Crown Point, Indiana

2.4 mi

Cafe Fresco

4.8 ★ ★ ★ ★ ★

Crown Point, Indiana

2.4 mi

FLUID Coffee Roasters

4.7 ★ ★ ★ ★ ★

Near the end, short detour

1.3 mi from route ~3 min detour mile 107.4

Crown Point, Indiana

Hours: 6 am–6 pm

+12192132044

Visit website

TC's Restaurant & Tavern

4.7 ★ ★ ★ ★ ★

Early in the drive, short detour

2.3 mi from route ~6 min detour $10 to $20 mile 35.8

Battle Ground, Indiana

Hours: 11 am–9 pm

+17655672838

Visit website

T's Pizza & Family Restaurant

4.6 ★ ★ ★ ★ ★

Near the end, short detour

3.2 mi from route ~8 min detour $10 to $20 mile 116.3

Hobart, Indiana

Hours: 4–10:30 pm

+12199422424

Visit website

RedSeven Kitchen + Cocktail

4.5 ★ ★ ★ ★ ★

Early in the drive, ~12 min detour

4.7 mi from route ~12 min detour $20 to $30 mile 35.8

Lafayette, Indiana

Hours: 11 am–9:30 pm

+17657427337

Visit website

BJ's Restaurant & Brewhouse

4.0 ★ ★ ★ ★ ☆

Near the end, ~11 min detour

4.4 mi from route ~11 min detour $20 to $30 mile 107.4

Merrillville, Indiana

Hours: 11 am–12 pm

+12195001370

Visit website

Sonic Drive-In

4.0 ★ ★ ★ ★ ☆

Early in the drive, ~11 min detour

4.6 mi from route ~11 min detour $10 to $20 mile 26.8

Lafayette, Indiana

Hours: 7 am–1 pm

+17654477700

Visit website

Smalltown Coffee Company

4.9 ★ ★ ★ ★ ★

Near the end, short detour

2.3 mi from route ~6 min detour $1 to $10 mile 107.4

Crown Point, Indiana

Hours: 7 am–3 pm

+12193233948

Visit website

Sip Coffee House & Artisan Cafe

4.5 ★ ★ ★ ★ ★

Near the end, short detour

2.4 mi from route ~6 min detour $10 to $20 mile 107.4

Crown Point, Indiana

Hours: 6 am–9 pm

+12196629165

Visit website

Cafe Fresco

4.8 ★ ★ ★ ★ ★

Near the end, short detour

2.4 mi from route ~6 min detour $1 to $10 mile 107.4

Crown Point, Indiana

Hours: 7 am–5 pm

+12193108078

Visit website

Place data sourced from public business listings. Hours and availability may vary.

Heads-up: tricky spots

4 of 4

4 decision points cluster between mile 4.8 and 119.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

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

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.

Forecast as of Apr 15, 2026

Origin

Thorntown, IN

Morning in Thorntown on Sunday

Local time

10:18 AM

EDT

Current temp

53°F

Unavailable

Live forecast

Destination

Portage, IN

Morning in Portage on Sunday

Local time

9:18 AM

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.

National Parks Near This Route

Worth a detour if your schedule allows.

Indiana Dunes National Park

Indiana Dunes National Park

National Park

Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving a rich mosaic of habitats along these 15 miles of Indiana coast. Over 50 miles of trails...

6 mi from route ~15 min detour $20 near mile 125.3
Park Closure: Partial Closures to Marquette Greenway Trail and Glenwood Dunes Trail
Park Closure: Mount Baldy Closure
View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

What kind of drive is this?

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.

94% highway — fuel and pacing are the main things to plan.
10 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 113.3 mi on I 65.

How Hard Is This Drive?

3/10

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.

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

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.

Frequently Asked Questions

The longest stretch is about 113.3 miles on I 65. The full list of main roads is in the Roads section above.

Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.

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.

Yes — Indiana Dunes National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Portage, IN before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.

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