Origin
Saint Louis, MI
Night in Saint Louis on Wednesday
Local time
10:45 PM
EDT
Current temp
45°F
Unavailable
Live forecast
Trip from Saint Louis, MI to Macomb, MI
Last recalculated Apr 16, 2026
Drive Time
2h 31m
Distance
119.8 mi
193 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$19
one way
Best Time to Leave
4 AM
2h 21m
★
6 AM
2h 31m
8 AM
2h 51m
10 AM
2h 38m
12 PM
2h 36m
3 PM
2h 39m
5 PM
2h 50m
8 PM
2h 25m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Saint Louis, MI
Amicia Short
Trip Overview
This 119.8-mile drive from Saint Louis, MI to Macomb, MI will take you about 2 hours and 31 minutes. It's a straightforward trip primarily utilizing I 75, Gratiot Road, and East Monroe Road, making it an ideal one-day excursion. With a fuel cost estimated around $19, this journey through the Midwest region is budget-friendly. You'll find the route offers a mixed driving experience, suitable for a single-day adventure without the need for an overnight stay. Plan for one main stop along the way to break up the drive.
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
59.9 miles from Saint Louis, MI
A natural place for your longest stop of the day , about 1h 13m into the drive .
Drive Character
The road character on this route is a blend, with 56% of the drive being on highways. You'll experience a longest stretch of 66.9 miles on I 75, offering a chance to maintain a consistent speed. As you transition from the interstate to roads like Gratiot Road and East Monroe Road, the driving feel will likely change, introducing more local traffic and varied speed limits. This mixed profile means you'll encounter both efficient highway cruising and more localized stretches.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 43 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 75 is the longest continuous segment at about 66.9 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 34.3 miles in near M 46 / East Holland Avenue.
Route Complexity
8/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 21 significant decision points across 119.8 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 34.3 miles (M 46 / East Holland Avenue): Lane positioning matters here; at 36.4 miles: Roundabout - know your exit number before entering. Multiple destination signs - pick the right one; at 103.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 21 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
34.3 mi into trip
|
~45m in
|
M 46 / East Holland Avenue
Turn right onto M 46 / East Holland Avenue
Lane positioning matters here
Use the right lane.
6
36.4 mi into trip
|
~47m in
Enter roundabout toward I 75 South, US 23 South: Flint
Roundabout - know your exit number before entering. Multiple destination signs - pick the right one
Toward I 75 South, US 23 South: Flint
8
103.6 mi into trip
|
~2h in
Take the exit toward I 75 Business, M 24: Pontiac, Lapeer
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 81
Toward I 75 Business, M 24: Pontiac, Lapeer
5
104.4 mi into trip
|
~2h 2m in
|
I 75 BL
Keep slight right at fork onto I 75 BL toward I 75 Business South: Pontiac
Highway fork - watch signs carefully
Toward I 75 Business South: Pontiac
6
106.3 mi into trip
|
~2h 7m in
|
Tienken Road
Turn right onto Tienken Road
Lane positioning matters here
Use the right lane.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Saint Louis, MI and Macomb, MI, road signs point toward M 24: Pontiac and Lapeer.
M 24: Pontiac
103.6 mi in
|
~2h
Lapeer
103.6 mi in
|
~2h
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 75 | 66.9 mi | 1h 11m |
| Gratiot Road | 16.7 mi | 19m |
| East Monroe Road | 10.4 mi | 14m |
| 25 Mile Road | 6.9 mi | 10m |
| Tienken Road | 3.5 mi | 6m |
| West Saginaw Street | 2.3 mi | 4m |
| East Holland Avenue | 2 mi | 2m |
| Rust Avenue Bridge | 1.6 mi | 2m |
Longest stretch:
I 75
— 66.9 mi, about 1h 11m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Louis, MI and Macomb, MI.
1
Start on North Main Street
173 ft
·
13 sec
·
North Main Street
2
Turn left onto M 46
0.6 mi
·
1 min
·
East Washington Street
3
Continue on M 46
5.4 mi
·
7 min
·
East Monroe Road
4
Continue on M 46
1.0 mi
·
2 min
·
West Saginaw Street
5
Continue on M 46
5.0 mi
·
7 min
·
East Monroe Road
6
Continue on M 46
1.2 mi
·
1 min
·
Gratiot Road
7
Continue on M 46
0.8 mi
·
1 min
·
West Saginaw Street
8
Continue on M 46
0.4 mi
·
48 sec
·
East Saginaw Street
9
Continue on M 46
4.1 mi
·
4 min
·
Gratiot Road
10
Continue on M 46
0.2 mi
·
11 sec
·
North Saginaw Street
11
Continue on M 46
0.6 mi
·
38 sec
·
West Saginaw Street
12
Continue on M 46
11 mi
·
13 min
·
Gratiot Road
13
Continue on M 46
1.2 mi
·
1 min
·
Gratiot Avenue
Use the straight / right lanes.
14
Turn right onto M 46
0.4 mi
·
31 sec
·
Stephens Street
15
Continue on M 46
464 ft
·
6 sec
·
Rust Street
16
Continue on M 46
1.6 mi
·
2 min
·
Rust Avenue Bridge
17
Continue on M 46
0.3 mi
·
23 sec
·
South Warren Avenue
18
Turn right onto M 46
2.0 mi
·
2 min
·
East Holland Avenue
Use the right lane.
19
Enter roundabout
238 ft
·
13 sec
Toward I 75 South, US 23 South: Flint
20
Continue
0.3 mi
·
45 sec
Toward I 75 South, US 23 South: Flint
21
Merge onto I 75; US 23
23 mi
·
24 min
·
I 75; US 23
22
Keep slight left at fork onto I 75; US 23
11 mi
·
11 min
·
I 75; US 23
23
Keep slight left at fork onto I 75
33 mi
·
35 min
·
I 75
24
Take the exit
0.6 mi
·
1 min
Exit 81
Toward I 75 Business, M 24: Pontiac, Lapeer
Use the slight right lane.
25
Continue on I 75 BL
0.2 mi
·
27 sec
·
I 75 BL
26
Keep slight right at fork onto I 75 BL
0.6 mi
·
57 sec
·
I 75 BL
Toward I 75 Business South: Pontiac
27
Turn left
88 ft
·
3 sec
Use the left lane.
28
Turn left
154 ft
·
7 sec
29
Continue on Shimmons Road
0.5 mi
·
1 min
·
Shimmons Road
30
At end of road, turn left onto Shimmons Road
0.6 mi
·
1 min
·
Shimmons Road
31
At end of road, turn left onto North Squirrel Road
0.3 mi
·
37 sec
·
North Squirrel Road
32
Turn right onto Tienken Road
3.5 mi
·
6 min
·
Tienken Road
Use the right lane.
33
Enter roundabout onto West Tienken Road
128 ft
·
3 sec
·
West Tienken Road
34
Continue on West Tienken Road
1.6 mi
·
3 min
·
West Tienken Road
Use the straight / left lanes.
35
Enter roundabout onto East Tienken Road
159 ft
·
5 sec
·
East Tienken Road
36
Continue on East Tienken Road
0.6 mi
·
1 min
·
East Tienken Road
37
Enter roundabout onto Runyon Road
150 ft
·
3 sec
·
Runyon Road
38
Continue on Runyon Road
0.9 mi
·
1 min
·
Runyon Road
39
Continue on 25 Mile Road
6.0 mi
·
9 min
·
25 Mile Road
40
Enter roundabout onto 25 Mile Road
150 ft
·
4 sec
·
25 Mile Road
41
Continue on 25 Mile Road
0.9 mi
·
1 min
·
25 Mile Road
42
Enter roundabout
270 ft
·
7 sec
43
Arrive at destination
Trip Plan
For this 2.5-hour drive, departing in the morning is recommended to avoid potential midday traffic, especially as you get closer to Macomb. With a total distance of 119.8 miles, you can easily complete this trip in one day with just one planned stop. Keep an eye on your fuel gauge, as the estimated cost is $19, and plan your refueling accordingly. A specific tip for this route: be aware of the transition from I 75 to Gratiot Road, as this can be a point where traffic patterns shift.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 59.9 miles from Saint Louis, MI, or about 1h 13m into the drive.
The longest continuous stretch on this route runs about 66.9 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 26 miles or 35m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 59.9 miles or 1h 13m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 54m
Traffic, exits, and arrival timing usually matter more near Macomb, MI than in the middle of the route.
Before You Leave
+
Open the route before leaving Saint Louis, 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.
Day 1
Settle into the route from Saint Louis, MI
This is one driving day of about 119.8 miles and 2h 31m.
Your first comfortable stop window is around 26 miles from Saint Louis, MI.
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 I 75 for about 66.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 59.9 mi from Saint Louis, MI · 1h 13m into the drive
Mid-route town
Meal stop
60 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 26 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 59.9 miles from Saint Louis, MI, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 75 if your tank is already low. That segment runs about 66.9 miles.
Arriving in Macomb, MI
The final approach into Macomb, MI 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 Macomb, MI.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$18.73 one way
$37.46 round trip
$3.97/gal
25.4 MPG avg
42 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $20.56 | $41.13 |
| premium | $4.89 | $23.05 | $46.11 |
| diesel | $5.61 | $26.45 | $52.90 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$19
Meals
$25–$50
Total
$44–$69
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 41.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 35.9 | 0 | $12.58 | $5.75 |
| Efficient EV | 30 | 0 | $10.48 | $4.79 |
| EV Truck/SUV | 47.9 | 0 | $16.77 | $7.67 |
Gas CO2
42 kg
EV CO2
14 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.
Destination
Macomb, MI
Night in Macomb on Wednesday
Local time
10:45 PM
EDT
Current temp
47°F
Unavailable
Live 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
2 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
2h 31m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Saint Louis, MI to Macomb, MI covers 119.8 miles and takes about 2h 31m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 75, Gratiot Road, East Monroe Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 59.9 miles from Saint Louis, MI. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $18.73 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.
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 21 significant decision points across 119.8 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.
The main spots that need attention: at 34.3 miles (M 46 / East Holland Avenue): Lane positioning matters here; at 36.4 miles: Roundabout - know your exit number before entering. Multiple destination signs - pick the right one; at 103.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Saint Louis, MI and Macomb, MI, road signs point toward M 24: Pontiac and Lapeer.
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