How far is Gary, IN from Sullivan, IN?
The driving distance from Gary, IN to Sullivan, IN is about 190.4 miles (306.4 km), with a travel time of about 04h 10m by car.
- The straight-line flight distance is about 172.6 miles (277.8 km).
- For a round trip, plan for roughly 08h 20m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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.
This drive is better planned with a longer stop or an overnight stay.
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 04h 10m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Human settlement in Warren County, Indiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Gary and Sullivan.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gary and Sullivan.
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1
Start on 10th Place
17 m · 4 sec · 10th Place
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2
Turn right onto Harrison Street
146 m · 28 sec · Harrison Street
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3
Turn left onto West 11th Avenue
1250 ft · 39 sec · West 11th Avenue
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4
Turn right onto Madison Street
1406 ft · 48 sec · Madison Street
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5
Turn left onto West 15th Avenue
1 mi · 2 min · West 15th Avenue
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6
Continue on Central Avenue
854 ft · 22 sec · Central Avenue
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7
Turn right onto Martin Luther King Drive
2.5 mi · 5 min · Martin Luther King Drive
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8
Turn left onto East Ridge Road
1276 ft · 35 sec · East Ridge Road
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9
Take the ramp slight right
1469 ft · 36 sec
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10
Merge slight left onto Casimir Pulaski Memorial Highway
37.2 mi · 41 min · Casimir Pulaski Memorial Highway
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11
Take the exit slight right toward SR 14: Winamac
2432 ft · 46 sec
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12
Turn right onto State Road 14
9.2 mi · 13 min · State Road 14
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13
Turn left
25.5 mi · 33 min
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14
Keep slight left
21.6 mi · 27 min
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15
Continue straight
63.4 mi · 1 hr 21 min
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16
Continue straight
25.4 mi · 39 min
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17
Take the exit slight left toward North Section Street
2.7 mi · 5 min · North Section Street
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18
Turn left onto West Wall Street
1065 ft · 49 sec · West Wall Street
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19
Turn right onto North State Street
118 m · 17 sec · North State Street
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20
Arrive at your destination
0 m · 1 sec · South State Street
Car Route Details
A richer read on the saved driving route between Gary and Sullivan.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
State Road 14
Continue straight
63.4 mi · 01h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Mostly Sunny leaving Gary and Mostly Sunny near Sullivan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gary to Sullivan?
The road trip is about 190.4 miles (306.4 km) and usually takes 04h 10m 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?
Pine Village is a useful midpoint, sitting about 95.3 miles from Gary and 95.1 miles from Sullivan.
How much longer is the road route than the straight-line distance?
The direct path is about 172.6 miles (277.8 km), while the road route adds roughly 17.8 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 8:40 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.34 one way or $50.68 round trip. Estimated CO2 is about 59.7 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Gary and Sullivan, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gary and Mostly Sunny near Sullivan.
Stop Ideas Near Pine Village
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 Pine Village.
Lafayette station
Danville, Illinois
Crawfordsville (Bus), Indiana
Crawfordsville
Flight Path Map
This map shows the direct air route between Gary and Sullivan. Straight-line distance: 172.63 mi (277.82 km).
#1 Gary
The most populous city in Lake County, Indiana.
| Population | 74,693 |
| Coordinates | 41.5933700, -87.3464300 |
| Altitude | 183 |
| Country | United States |
#2 Sullivan
City in the U.
| Population | 4,089 |
| Coordinates | 39.0953200, -87.4058500 |
| Altitude | 161 |
| Country | United States |
End: Sullivan (-87.40585, 39.09532)
Estimated Travel Time
Distance: 306 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 20m |
| 40 mph (64.37 km/h) | 04h 45m |
| 50 mph (80.47 km/h) | 03h 48m |
| 60 mph (96.56 km/h) | 03h 10m |
| 70 mph (112.65 km/h) | 02h 43m |
| 80 mph (129 km/h) | 02h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $25.34 | $50.68 |
| Mid-grade | $4.25 | $28.58 | $57.16 |
| Premium | $4.65 | $31.27 | $62.55 |
| Diesel | $5.30 | $35.64 | $71.29 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.