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Trip from Decatur, IN to Gary, IN

Data updated 0 seconds ago

Drive Time

3h 22m

Distance

155.3 mi

250 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$24

one way

EV Charging

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station data

Best Time to Leave

Save up to 37 min
4 AM
3h 10m ★
6 AM
3h 23m
8 AM
3h 47m
10 AM
3h 31m
12 PM
3h 29m
3 PM
3h 32m
5 PM
3h 45m
8 PM
3h 15m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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city in Indiana, United States

Decatur, IN

Wikimedia Commons

city in Lake County, State of Indiana, United States

Gary, IN

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Trip Overview

The drive from Decatur, IN to Gary, IN covers 155.3 miles and takes about 3h 22m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on US 30, North 13th Street, Indiana Toll Road for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 88.8 miles on US 30. At current regular gas prices, budget about $24.28 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

1 planned break

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

77.6 miles from Decatur, IN

A natural place for your longest stop of the day , about 1h 39m into the drive .

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Drive Character

This is a 3h 22m highway drive covering 155.3 miles, with most of the trip on US 30 and North 13th Street. The longest continuous stretch is about 88.8 miles on US 30.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 24 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 30 is the longest continuous segment at about 88.8 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on US 30 and North 13th Street. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 128.1 miles in.

Route Complexity 8/10

Demanding - plan breaks and stay ahead of the key maneuvers

This is a demanding drive. With 14 significant decision points across 155.3 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.

Where does it get tricky?

The main spots that need attention: at 128.1 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 137.4 miles: Multiple destination signs - pick the right one; at 137.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 14 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

5
128.1 mi into trip | ~2h 45m in

Take the exit toward SR 49 North, SR 2 East: Valparaiso, Chesterton

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Toward SR 49 North, SR 2 East: Valparaiso, Ches...
6
137.4 mi into trip | ~2h 58m in

Turn left toward I 80, I 90: Toll Road

Multiple destination signs - pick the right one

Toward I 80, I 90: Toll Road
9
137.6 mi into trip | ~2h 59m in

Keep slight right at fork toward I 80 West, I 90 West: Chicago

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight lane. Toward I 80 West, I 90 West: Chicago
5
137.9 mi into trip | ~2h 59m in | I 80; I 90 / Indiana Toll Road

Merge onto I 80; I 90 / Indiana Toll Road

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
7
153.5 mi into trip | ~3h 17m in

Take the exit toward SR 53: Broadway

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Exit 14B Toward SR 53: Broadway

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 Decatur, IN to Gary, IN, road signs begin pointing toward Chesterton along the way.

Chesterton

128.1 mi in | ~2h 45m

Main Roads

Road Distance Duration
US 30 88.8 mi 1h 56m
North 13th Street 15.9 mi 18m
Indiana Toll Road 15.6 mi 17m
US 33 12.7 mi 16m
Lafayette Street 5.6 mi 7m
West Coliseum Boulevard 1.6 mi 2m
Spy Run Avenue 1.1 mi 2m
Lima Road 1.1 mi 1m
Longest stretch: US 30 — 88.8 mi, about 1h 56m

Turn-by-Turn Driving Directions

Step-by-step road directions between Decatur, IN and Gary, IN.

1

Start on US 224

0.5 mi · 46 sec · West Monroe Street
2

Turn right onto US 27; US 33; US 224

16 mi · 18 min · North 13th Street
3

Continue on US 27

4.7 mi · 5 min · Lafayette Street
4

Keep slight right at fork onto US 27

0.9 mi · 1 min · Lafayette Street
5

Continue on US 27

1.1 mi · 2 min · Spy Run Avenue
Use the left / straight / right lanes.
6

Continue on US 27

0.4 mi · 27 sec · North Clinton Street
Use the straight lane.
7

Turn straight onto US 27

1.1 mi · 1 min · Lima Road
Toward US 27 North
8

Turn left onto SR 930

1.6 mi · 2 min · West Coliseum Boulevard
Use the left lane.
9

Take the exit onto SR 930

0.2 mi · 23 sec · SR 930
Toward SR 930 West
10

Merge onto SR 930

0.3 mi · 21 sec · Goshen Road
11

Continue on US 33

13 mi · 16 min · US 33
Use the straight lane.
12

Continue on US 30

89 mi · 1 hr 56 min · US 30
Use the straight lane.
13

Take the exit

9.2 mi · 13 min
Toward SR 49 North, SR 2 East: Valparaiso, Chesterton
14

Turn left

394 ft · 9 sec
Toward I 80, I 90: Toll Road
15

Continue on this road

0.1 mi · 18 sec · this road
16

Continue on this road

411 ft · 10 sec · this road
Toward I 80, I 90: Toll Road
17

Keep slight right at fork

0.2 mi · 30 sec
Toward I 80 West, I 90 West: Chicago Use the straight lane.
18

Merge onto I 80; I 90

16 mi · 17 min · Indiana Toll Road
Use the straight / slight right lanes.
19

Take the exit

0.4 mi · 56 sec
Exit 14B Toward SR 53: Broadway Use the straight / slight right lanes.
20

Turn left onto SR 53

0.1 mi · 29 sec · Broadway
21

Turn right onto US 12; US 20

0.3 mi · 30 sec · West 4th Avenue
22

Turn left onto Madison Street

0.7 mi · 2 min · Madison Street
23

Turn right onto 10th Place

0.2 mi · 57 sec · 10th Place
24

Arrive at destination

10th Place

Trip Plan

Morning Departure

An early start around 7-8 AM gets you there with plenty of daylight left.

Evening Departure

A late afternoon start means arriving after dark. Morning is better.

You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 77.6 miles from Decatur, IN, or about 1h 39m into the drive.
The longest continuous stretch on this route runs about 88.8 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 80 miles or 1h 42m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 77.6 miles or 1h 39m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 2h 44m

Traffic, exits, and arrival timing usually matter more near Gary, IN than in the middle of the route.

Before You Leave

+

Open the route before leaving Decatur, 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 Decatur, IN

This is one driving day of about 155.3 miles and 3h 22m.

Your first comfortable stop window is around 80 miles from Decatur, IN.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 30 for about 88.8 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 77.6 mi from Decatur, IN · 1h 39m into the drive

Downtown chicago-il

Mid-route town

Meal stop

Chicago, IL

78 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

Chicago, IL

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Chicago, IL

Meal break

The midpoint is around 77.6 miles from Decatur, IN, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before US 30 if your tank is already low. That segment runs about 88.8 miles.

Arriving in Gary, IN

The final approach into Gary, 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 Gary, IN.

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

Fuel & Cost

Regular Gas

$24.28 one way

$48.56 round trip

$3.97/gal 25.4 MPG avg 54 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $26.66 $53.32
premium $4.89 $29.89 $59.77
diesel $5.61 $34.29 $68.58

Estimated Tolls: $1.09

Indiana Toll Road (15.6 mi) $1.09

Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.

Estimated Trip Cost (one way, 1 person)

Fuel

$24

Tolls

$1

Meals

$25–$50

Total

$50–$75

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 54.3 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $16 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 46.6 0 $16.31 $7.45
Efficient EV 38.8 0 $13.59 $6.21
EV Truck/SUV 62.1 0 $21.74 $9.94

Gas CO2

54 kg

EV CO2

18 kg (67% 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 data refreshed 1 day ago

Origin

Decatur, IN

Morning in Decatur on Wednesday

Local time

6:13 AM

EDT

Current temp

65°F

Slight Chance Showers And Thunderstorms

SW 15 mph 21% chance Live forecast

Flood Warning

Flood Warning issued April 13 at 10:37PM EDT until April 17 at 8:00AM EDT by NWS Northern Indiana

Flood Warning

Flood Warning issued April 13 at 6:31PM CDT until April 15 at 7:00AM CDT by NWS Chicago IL

Destination

Gary, IN

Late night in Gary on Wednesday

Local time

5:13 AM

CDT

Current temp

57°F

Mostly Cloudy then Showers And Thunderstorms Likely

SSW 15 to 20 mph 60% chance Live forecast

Flood Warning

Flood Warning issued April 13 at 10:37PM EDT until April 17 at 8:00AM EDT by NWS Northern Indiana

Flood Warning

Flood Warning issued April 13 at 6:31PM CDT until April 15 at 7:00AM CDT by NWS Chicago IL

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

8 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

3h 22m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Decatur, IN to Gary, IN covers 155.3 miles and takes about 3h 22m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 30, North 13th Street, Indiana Toll Road. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 77.6 miles from Decatur, IN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $24.28 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a demanding drive. With 14 significant decision points across 155.3 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 128.1 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 137.4 miles: Multiple destination signs - pick the right one; at 137.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
On the drive from Decatur, IN to Gary, IN, road signs begin pointing toward Chesterton along the way.

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