The drive from Detroit, MI to Vassar, MI covers 86.8 miles and takes about 1h 52m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Walter P. Chrysler Freeway, South State Road, Ortonville Road for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 39.9 miles on Walter P. Chrysler Freeway.
At current regular gas prices, budget about $13.57 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
43.4 miles from Detroit, MI
A natural place for your longest stop of the day
, about 50m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 52m. Total distance: 86.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Mixed drive route profile with national parks nearby.
Drive Character
The drive from Detroit, MI to Vassar, MI covers 86.8 miles and takes about 1h 52m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Walter P. Chrysler Freeway is the longest continuous segment at about 39.9 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near Cadillac Square.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 1h 52m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (Cadillac Square): Lane positioning matters here; at 0.7 miles (Chrysler Drive): Lane positioning matters here; at 0.9 miles (I 375 / Walter P. Chrysler Freeway): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
0.1 mi into trip|~0m in|Cadillac Square
Continue onto Cadillac Square toward M 3 North
Lane positioning matters here
Use the left lane.
Toward M 3 North
6
0.7 mi into trip|~2m in|Chrysler Drive
At end of road, turn left onto Chrysler Drive
Lane positioning matters here
Use the left lane.
6
0.9 mi into trip|~2m in|I 375 / Walter P. Chrysler Freeway
Merge onto I 375 / Walter P. Chrysler Freeway toward I 75 North: Flint
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 75 North: Flint
8
40.8 mi into trip|~46m in
Take the exit toward M 15: Clarkston, Davison
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 91
Toward M 15: Clarkston, Davison
6
41.2 mi into trip|~47m in|M 15 / Ortonville Road
Turn right onto M 15 / Ortonville 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 Detroit, MI and Vassar, MI, road signs point toward M 15: Clarkston and Davison.
M 15: Clarkston
40.8 mi in|~46m
Davison
40.8 mi in|~46m
Main Roads
Road
Distance
Duration
Walter P. Chrysler Freeway
39.9 mi
43m
South State Road
20.3 mi
29m
Ortonville Road
9.7 mi
14m
North State Road
7.6 mi
10m
State Road
5.7 mi
7m
State Street
1 mi
1m
Goodrich Street
0.6 mi
<1m
South State Street
0.5 mi
<1m
Longest stretch:
Walter P. Chrysler Freeway
— 39.9 mi, about 43m
Turn-by-Turn Driving Directions
Step-by-step road directions between Detroit, MI and Vassar, MI.
1
Start on Cadillac Square
0.1 mi·28 sec·Cadillac Square
2
Continue on Cadillac Square
97 ft·3 sec·Cadillac Square
Toward M 3 NorthUse the left lane.
3
Turn slight left onto M 3
0.2 mi·38 sec·Randolph Street
4
Turn right onto Monroe Street
0.4 mi·1 min·Monroe Street
Use the right lane.
5
At end of road, turn left onto Chrysler Drive
34 ft·1 sec·Chrysler Drive
Use the left lane.
6
Take the ramp
0.2 mi·20 sec
7
Merge onto I 375
40 mi·43 min·Walter P. Chrysler Freeway
Toward I 75 North: FlintUse the straight / slight right lanes.
8
Take the exit
0.4 mi·50 sec
Exit 91Toward M 15: Clarkston, DavisonUse the slight right lane.
9
Turn right onto M 15
9.7 mi·14 min·Ortonville Road
Use the right lane.
10
Continue on M 15
20 mi·29 min·South State Road
Use the right lane.
11
Continue on M 15
0.5 mi·45 sec·South State Street
12
Continue on M 15
7.6 mi·10 min·North State Road
13
Continue on M 15
1.0 mi·1 min·State Street
14
Continue on M 15
5.7 mi·7 min·State Road
15
Continue on M 15
0.6 mi·55 sec·Goodrich Street
16
At end of road, turn left onto M 15
0.2 mi·17 sec·East Huron Avenue
17
Arrive at destination
M 15
Trip Plan
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.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 43.4 miles from Detroit, MI, or about 50m into the drive.
The longest continuous stretch on this route runs about 39.9 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 19 miles or 22m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 43.4 miles or 50m 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 34m
Traffic, exits, and arrival timing usually matter more near Vassar, MI than in the middle of the route.
Before You Leave
+
Open the route before leaving Detroit, MI so your first major turns are already loaded.
Day 1
Settle into the route from Detroit, MI
This is one driving day of about 86.8 miles and 1h 52m.
Your first comfortable stop window is around 19 miles from Detroit, MI.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Walter P. Chrysler Freeway for about 39.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 43.4 mi from Detroit, MI
· 50m into the drive
Place data sourced from public business listings. Hours and availability may vary.
Fuel & Cost
Regular Gas
$13.57 one way
$27.14 round trip
$3.97/gal25.4 MPG avg30 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$14.90
$29.80
premium
$4.89
$16.70
$33.41
diesel
$5.61
$19.16
$38.33
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$14
Meals
$25–$50
Total
$39–$64
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 30.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $9 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
26
0
$9.11
$4.17
Efficient EV
21.7
0
$7.59
$3.47
EV Truck/SUV
34.7
0
$12.15
$5.56
Gas CO2
30 kg
EV CO2
10 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.
Forecast as of Apr 15, 2026
Origin
Detroit, MI
Late night
in Detroit on Saturday
Local time
5:51 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Destination
Vassar, MI
Late night
in Vassar on Saturday
Local time
5:51 AM
EDT
Current temp
44°F
Unavailable
Live forecast
65°F
Ortonville, MI
43 mi in
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
5 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
1h 52m 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 Detroit, MI to Vassar, MI covers 86.8 miles and takes about 1h 52m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Walter P. Chrysler Freeway, South State Road, Ortonville Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 43.4 miles from Detroit, MI. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $13.57 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 is a straightforward 1h 52m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: at 0.1 miles (Cadillac Square): Lane positioning matters here; at 0.7 miles (Chrysler Drive): Lane positioning matters here; at 0.9 miles (I 375 / Walter P. Chrysler Freeway): Merge point - match speed before joining. Lane positioning matters here.
Between Detroit, MI and Vassar, MI, road signs point toward M 15: Clarkston and Davison.
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 NPS for national parks. See our methodology for refresh cadence and limitations.
