How far is Hammond, IN from Flat Rock, IN?
The driving distance from Hammond, IN to Flat Rock, IN is about 195.9 miles (315.3 km), with a travel time of about 03h 49m by car.
- The straight-line flight distance is about 176.6 miles (284.2 km).
- For a round trip, plan for roughly 07h 38m 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 03h 49m.
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.
The most populous city in Tippecanoe County, Indiana.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Hammond and Flat Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hammond and Flat Rock.
-
1
Start on Columbia Avenue
830 ft · 30 sec · Columbia Avenue
-
2
Turn left onto 173rd Street
1 km · 2 min · 173rd Street
-
3
Turn right onto Southeastern Avenue
1667 ft · 46 sec · Southeastern Avenue
-
4
Turn left onto 175th Street
821 ft · 32 sec · 175th Street
-
5
Turn right onto Indianapolis Boulevard
1325 ft · 22 sec · Indianapolis Boulevard
-
6
Take the ramp straight toward I 80 East, I 94 East, US 6 East: Detroit
2284 ft · 56 sec
-
7
Merge slight left onto Borman Expressway
8.2 mi · 11 min · Borman Expressway
-
8
Take the exit slight right toward I 65 South: Indianapolis
2002 ft · 34 sec
-
9
Keep slight left
1.3 km · 2 min
-
10
Merge slight left onto Casimir Pulaski Memorial Highway
129.3 mi · 2 hr 20 min · Casimir Pulaski Memorial Highway
-
11
Keep slight left
17.1 mi · 22 min
-
12
Continue on I 70 East: Dayton
1.9 mi · 3 min
-
13
Keep slight left
30 mi · 34 min
-
14
Take the exit slight right toward SR 252: Flat Rock, Edinburgh
1861 ft · 46 sec
-
15
Turn left onto County Road 1100 South
789 ft · 16 sec · County Road 1100 South
-
16
Continue on Old State Road 252
5.9 mi · 10 min · Old State Road 252
-
17
Arrive at your destination
0 m · 1 sec · Old State Road 252
Car Route Details
A richer read on the saved driving route between Hammond and Flat Rock.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Casimir Pulaski Memorial Highway
Merge slight left onto Casimir Pulaski Memorial Highway
129 mi · 02h 20m
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 Hammond and Sunny near Flat Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hammond to Flat Rock?
The road trip is about 195.9 miles (315.3 km) and usually takes 03h 49m 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?
Lafayette is a useful midpoint, sitting about 98 miles from Hammond and 97.9 miles from Flat Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 176.6 miles (284.2 km), while the road route adds roughly 19.3 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 9:22 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.06 one way or $52.12 round trip. Estimated CO2 is about 61.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Hammond and Flat Rock, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Hammond and Sunny near Flat Rock.
Stop Ideas Near Lafayette
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Mulberry - Town Hall & Municipal Utilities
Lafayette City Hall
Morton Community Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lafayette.
Lafayette station
Crawfordsville (Bus), Indiana
Crawfordsville
Rensselaer
Flight Path Map
This map shows the direct air route between Hammond and Flat Rock. Straight-line distance: 176.62 mi (284.25 km).
#1 Hammond
The most populous city in Lake County, Indiana.
| Population | 75,342 |
| Coordinates | 41.5833700, -87.5000400 |
| Altitude | 183 |
| Country | United States |
#2 Flat Rock
Unincorporated community in Shelby County, Minnesota
| Population | 1,728 |
| Coordinates | 39.3642200, -85.8316500 |
| Altitude | 210 |
| Country | United States |
End: Flat Rock (-85.83165, 39.36422)
Estimated Travel Time
Distance: 315 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 31m |
| 40 mph (64.37 km/h) | 04h 53m |
| 50 mph (80.47 km/h) | 03h 55m |
| 60 mph (96.56 km/h) | 03h 15m |
| 70 mph (112.65 km/h) | 02h 47m |
| 80 mph (129 km/h) | 02h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $26.06 | $52.12 |
| Mid-grade | $4.25 | $29.39 | $58.78 |
| Premium | $4.65 | $32.16 | $64.32 |
| Diesel | $5.30 | $36.65 | $73.30 |
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.