Macomb, MI to Flat Rock, MI is 420.8 miles and takes about 7h 52m via 25 Mile Road, Runyon Road, and East Tienken Road, with a fuel budget near $67 and enough daylight to finish in a day. This Midwest to Midwest trip stays within Michigan for its entirety, sticking to surface roads for the full 420.8 miles. You'll be navigating local streets and county roads for this longer, day-trip-friendly drive. Plan for a full day behind the wheel as you make your way across the state.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
210.4 miles from Macomb, MI
A natural place for your longest stop of the day
, about 3h 51m into the drive
.
Main Roads
Road
Distance
Duration
I 75
260.2 mi
4h 29m
US-2 West
130.2 mi
2h 34m
25 Mile Road
6.9 mi
10m
County 416 20th Road
3.5 mi
4m
US 2
3.2 mi
3m
County 420 21st Road
3 mi
4m
Dutton Road
2.4 mi
3m
East Tienken Road
2.2 mi
4m
Longest stretch:
I 75
— 260.2 mi, about 4h 29m
Traffic on I-75
Hour-of-day weekday pattern from 86 FHWA count stations on your route.
Peak
4 PM
~1,982 veh/hr typical
· worst 3,075
Quietest
2 AM
~86 veh/hr
Peak-to-quiet ratio
23×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Macomb, MI and Flat Rock, MI.
1
Start on this road
31 ft·0 sec·this road
2
Continue on 25 Mile Road
0.9 mi·1 min·25 Mile Road
3
Enter roundabout onto 25 Mile Road
145 ft·4 sec·25 Mile Road
4
Continue on 25 Mile Road
6.0 mi·9 min·25 Mile Road
5
Continue on Runyon Road
0.9 mi·1 min·Runyon Road
6
Enter roundabout onto East Tienken Road
186 ft·4 sec·East Tienken Road
7
Continue on East Tienken Road
0.6 mi·1 min·East Tienken Road
8
Enter roundabout onto East Tienken Road
135 ft·4 sec·East Tienken Road
9
Continue on East Tienken Road
1.6 mi·3 min·East Tienken Road
Use the left lane.
10
Enter roundabout onto West Tienken Road
143 ft·3 sec·West Tienken Road
11
Continue on West Tienken Road
2.1 mi·4 min·West Tienken Road
12
Turn right onto North Adams Road
1.1 mi·1 min·North Adams Road
Use the right lane.
13
Turn left onto Dutton Road
2.4 mi·3 min·Dutton Road
Use the left lane.
14
Continue on Brown Road
1.3 mi·1 min·Brown Road
Use the straight / right lanes.
15
Continue on Brown Road
0.9 mi·1 min·Brown Road
Use the left / straight lanes.
16
Turn slight left
0.1 mi·33 sec
Use the left lane.
17
Turn straight onto Joslyn Road
0.2 mi·27 sec·Joslyn Road
18
Take the ramp
0.3 mi·40 sec
Toward I 75 NorthUse the right lane.
19
Merge onto I 75
27 mi·29 min·I 75
20
Keep slight left at fork onto I 75
52 mi·56 min·I 75
Toward I 75: Saginaw
21
Keep slight left at fork onto I 75; US 23
63 mi·1 hr 3 min·I 75; US 23
22
Keep slight left at fork onto I 75
118 mi·2 hr 1 min·I 75
23
Take the exit
0.4 mi·1 min
Exit 344BToward US 2: Manistique, Escanaba
24
Merge onto US 2; I 75 BL
0.7 mi·1 min·US-2 West
25
Continue on US 2
3.2 mi·3 min·US 2
26
Continue on US 2
130 mi·2 hr 33 min·US-2 West
27
Turn right onto South Hill Road
392 ft·10 sec·South Hill Road
28
Continue on Blackwell Avenue
0.2 mi·35 sec·Blackwell Avenue
29
Continue on South Hill Road
0.6 mi·1 min·South Hill Road
30
Continue on 420
3.0 mi·4 min·County 420 21st Road
31
Turn left onto 426
1.0 mi·1 min·County 426 M.5 Road
32
Turn right onto 416
3.5 mi·4 min·County 416 20th Road
33
Arrive at destination
20th Road
Trip Plan
Given the 7h 52m estimated drive time, consider an early morning departure from Macomb to maximize daylight. With two planned stops, you can break up the 420.8 miles into manageable segments. Keep an eye on your fuel gauge, especially since you'll be on surface roads for the entire trip; the estimated fuel cost is around $67. Since this is a single-day route, you have the flexibility to adjust your stop times based on your pace and any unexpected delays you might encounter on the local roads.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 210.4 miles from Macomb, MI, or about 3h 51m into the drive.
The longest continuous stretch on this route runs about 260.2 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 93 miles or 1h 51m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 210.4 miles or 3h 51m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 39m
Traffic, exits, and arrival timing usually matter more near Flat Rock, MI than in the middle of the route.
Before You Leave
+
Open the route before leaving Macomb, MI 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Macomb, MI
This is one driving day of about 420.8 miles and 7h 52m.
Your first comfortable stop window is around 93 miles from Macomb, MI.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 75 for about 260.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 19
5 decision points cluster between mile 8.4 and 278.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
8.4 mi into trip|~13m in|East Tienken Road
Enter roundabout onto East Tienken Road
Roundabout - know your exit number before entering
5
10 mi into trip|~16m in|West Tienken Road
Enter roundabout onto West Tienken Road
Roundabout - know your exit number before entering
6
12.1 mi into trip|~20m in|North Adams Road
Turn right onto North Adams Road
Lane positioning matters here
Use the right lane.
6
18 mi into trip|~31m in
Take the ramp toward I 75 North
Lane positioning matters here
Use the right lane.
Toward I 75 North
6
278.5 mi into trip|~5h 1m in
Take the exit toward US 2: Manistique, Escanaba
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 344B
Toward US 2: Manistique, Escanaba
Fuel & Cost
Regular Gas
$74.44 one way
$148.87 round trip
$4.49/gal25.4 MPG avg147 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.11
$84.62
$169.25
premium
$5.72
$94.68
$189.36
diesel
$6.43
$106.44
$212.89
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$74
Meals
$25–$50
Total
$99–$124
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 147.2 kg one way.
Driving Electric?
About $44 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
126.2
1
$44.18
$20.20
Efficient EV
105.2
1
$36.82
$16.83
EV Truck/SUV
168.3
2
$58.91
$26.93
Gas CO2
147 kg
EV CO2
49 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Oct 19, 2026
Origin
Macomb, MI
Afternoon
in Macomb on Tuesday
Local time
1:46 PM
EDT
Current temp
41°F
Clear
SW 5 mph0% chanceLive forecast
Destination
Flat Rock, MI
Afternoon
in Flat Rock on Tuesday
Local time
1:46 PM
EDT
Current temp
37°F
Mostly Clear
W 5 mph0% chanceLive forecast
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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
4 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
7h 52m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route is 100% surface roads, meaning you won't encounter any interstate cruising. You'll be spending the entire 7 hours and 52 minutes on local and county roads like 25 Mile Road, Runyon Road, and East Tienken Road. Be prepared for frequent intersections and potential traffic lights as you traverse through towns and suburban areas for the full 420.8 miles.
94% highway — fuel and pacing are the main things to plan.
33 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 260.2 mi on I 75.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 75 and US-2 West. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 8.4 miles in near East Tienken Road.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 19 significant decision points across 420.8 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 8.4 miles (East Tienken Road): Roundabout - know your exit number before entering; at 10 miles (West Tienken Road): Roundabout - know your exit number before entering; at 12.1 miles (North Adams Road): Lane positioning matters here.
Elevation Profile
Gently rolling terrain
1,395 ft587 ft
Total Climb
1,416 ft
Total Descent
1,274 ft
Highest Point
1,395 ft
~210.4 mi in
Elevation Range
808 ft
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 Macomb, MI to Flat Rock, MI, road signs begin pointing toward Escanaba along the way.
Doable as a same-day drive at 7h 52m. Total distance: 420.8 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 52m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 260.2 miles on I 75. The full list of main roads is in the Roads section above.
Yes — we found about 33 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Flat Rock, MI before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 33 rest areas along the route for bathroom stops.
The main spots that need attention: at 8.4 miles (East Tienken Road): Roundabout - know your exit number before entering; at 10 miles (West Tienken Road): Roundabout - know your exit number before entering; at 12.1 miles (North Adams Road): Lane positioning matters here.
Not recommended in a single day. At 7.9 hours each way, a round trip means 15.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Flat Rock, MI before the return drive.
