Origin
Flat Rock, IN
Morning in Flat Rock on Saturday
Local time
8:49 AM
EDT
Current temp
54°F
Unavailable
Live forecast
Trip from Flat Rock, IN to Indianapolis, IN
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
51m
Distance
37.9 mi
61 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 47m
★
6 AM
0h 51m
8 AM
0h 59m
10 AM
0h 54m
12 PM
0h 53m
3 PM
0h 54m
5 PM
0h 59m
8 PM
0h 49m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Flat Rock, IN
Rachel Claire
Trip Overview
If you are looking for a quick transition from the quiet of Flat Rock to the bustle of Indianapolis, this 37.9-mile trip is a straightforward journey. Expect to spend about 51 minutes behind the wheel, making this an ideal day trip that requires no overnight stay. You will primarily navigate via I-65, Old State Road 252, and South Meridian Street to reach your destination. With a fuel budget of just $6, it is an incredibly economical route to manage. Since both locations are firmly situated within the Midwest, you can expect a familiar landscape throughout the short trek. It is a practical, no-nonsense connection perfect for those who need to get between these two Indiana points efficiently.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 51m. Total distance: 37.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
51m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (78%). Some complex stretches to watch for.
Drive Character
This 51-minute drive is heavily highway-focused, with 78% of your travel time spent on major routes. You will find yourself settling into a steady rhythm on I-65, which accounts for the longest uninterrupted stretch of 29.7 miles. The character of the road shifts from the initial local segments on Old State Road 252 to the fast-paced, high-speed interstate environment. As you approach Indianapolis, the transit transitions into the urban flow of South Meridian Street. Because the route is dominated by the interstate, you can anticipate a consistent, predictable driving experience rather than a winding or technical backroad journey.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 12 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 29.7 miles.
Elevation Profile
Mostly flat terrain
836 ft
688 ft
Total Climb
195 ft
Total Descent
172 ft
Highest Point
836 ft
~27.1 mi in
Elevation Range
148 ft
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 65 and Old State Road 252. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes around 6.2 miles in near I 65.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 37.9 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 6.2 miles (I 65): Merge point - match speed before joining. Lane positioning matters here; at 35.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 36.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 8 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
6.2 mi into trip
|
~11m in
|
I 65
Merge onto I 65
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
35.8 mi into trip
|
~45m in
Take the exit toward I 70 West: Saint Louis
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left / straight lanes.
Exit 110B
Toward I 70 West: Saint Louis
7
36.6 mi into trip
|
~46m in
Take the exit toward Meridian Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 79B
Toward Meridian Street
5
37.8 mi into trip
|
~50m in
Turn right
Navigation decision point
5
37.8 mi into trip
|
~50m in
At end of road, turn right
Navigation decision point
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 65 | 29.7 mi | 34m |
| Old State Road 252 | 5.9 mi | 10m |
| South Meridian Street | 0.4 mi | 1m |
| Madison Avenue | 0.4 mi | 1m |
| Dwight D Eisenhower Highway | 0.1 mi | <1m |
| Monument Circle | <0.1 mi | <1m |
Longest stretch:
I 65
— 29.7 mi, about 34m
Turn-by-Turn Driving Directions
Step-by-step road directions between Flat Rock, IN and Indianapolis, IN.
1
Start on Old State Road 252
5.9 mi
·
10 min
·
Old State Road 252
2
Take the ramp
0.3 mi
·
38 sec
3
Merge onto I 65
30 mi
·
34 min
·
I 65
Use the straight / slight right lanes.
4
Take the exit
0.6 mi
·
56 sec
Exit 110B
Toward I 70 West: Saint Louis
Use the slight left / straight lanes.
5
Merge onto I 70
0.1 mi
·
12 sec
·
Dwight D Eisenhower Highway
6
Take the exit
0.3 mi
·
46 sec
Exit 79B
Toward Meridian Street
Use the slight right lane.
7
Continue on Madison Avenue
0.4 mi
·
1 min
·
Madison Avenue
8
Continue on South Meridian Street
0.4 mi
·
1 min
·
South Meridian Street
9
Turn left onto Monument Circle
365 ft
·
42 sec
·
Monument Circle
10
Turn right
76 ft
·
6 sec
11
At end of road, turn right
257 ft
·
28 sec
12
Arrive at destination
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 18.9 mi from Flat Rock, IN · 25m into the drive
Mid-route town
Meal stop
19 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 37.9 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 18.9 miles from Flat Rock, IN, which is a good place for a longer meal and fuel stop.
Arriving in Indianapolis, IN
Allow a few extra minutes for the final approach into Indianapolis, IN if you are unfamiliar with the area.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$5.93 one way
$11.85 round trip
$3.97/gal
25.4 MPG avg
13 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $6.51 | $13.01 |
| premium | $4.89 | $7.29 | $14.59 |
| diesel | $5.61 | $8.37 | $16.74 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 13.3 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 69% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.4 | 0 | $3.98 | $1.82 |
| Efficient EV | 9.5 | 0 | $3.32 | $1.52 |
| EV Truck/SUV | 15.2 | 0 | $5.31 | $2.43 |
Gas CO2
13 kg
EV CO2
4 kg (69% 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
Indianapolis, IN
Morning in Indianapolis on Saturday
Local time
8:49 AM
EDT
Current temp
57°F
Mostly Clear
WSW 2 to 9 mph
2% chance
Live forecast
75°F
Beech Grove, IN
19 mi in
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
51m 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 Flat Rock, IN to Indianapolis, IN covers 37.9 miles and takes about 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 65, Old State Road 252, South Meridian Street. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 18.9 miles from Flat Rock, IN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $5.93 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 drive requires moderate attention. Across 37.9 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 6.2 miles (I 65): Merge point - match speed before joining. Lane positioning matters here; at 35.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 36.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
The route from Flat Rock, IN to Indianapolis, IN does not surface many named destination signs beyond the main corridor.
Mostly flat terrain. The route ranges from 688 ft to 836 ft elevation with about 195 ft of total climbing.
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, EIA for fuel prices, and USGS 3DEP for elevation. See our methodology for refresh cadence and limitations.
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