McMillan to Ann Arbor is 347.8 miles and takes about 6h 17m via I 75 and US 23, with a fuel budget near $54 and enough daylight to finish in a day. This drive takes you from the Midwest region of Michigan to another part of the same state, largely sticking to major highways. It's a straightforward trip, perfect if you're looking for a direct route without many detours. Given the duration and distance, it's easily manageable as a single day's drive, allowing you to reach your destination without needing an overnight stop.
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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
173.9 miles from McMillan, MI
A natural place for your longest stop of the day
, about 3h 14m into the drive
.
Main Roads
Road
Distance
Duration
I 75
229.2 mi
3h 56m
US 23
45.4 mi
48m
Lake Michigan Scenic Highway
44.4 mi
51m
M 117
14.5 mi
21m
Main Street
6.8 mi
7m
US 2
3.2 mi
3m
US 23 BUS
2.4 mi
3m
North State Street
0.6 mi
1m
Longest stretch:
I 75
— 229.2 mi, about 3h 56m
Traffic on I-75
Hour-of-day weekday pattern from 36 FHWA count stations on your route.
Peak
3 PM
~1,617 veh/hr typical
· worst 2,601
Quietest
2 AM
~82 veh/hr
Peak-to-quiet ratio
19.7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 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 McMillan, MI and Ann Arbor, MI.
1
Start on M 28
6.8 mi·7 min·Main Street
2
Turn right onto M 117
14 mi·21 min·M 117
3
At end of road, turn left onto US 2
44 mi·51 min·Lake Michigan Scenic Highway
4
Continue on US 2
3.2 mi·3 min·US 2
5
Continue on US 2
0.5 mi·46 sec·US-2 West
6
Take the exit
0.3 mi·44 sec
Toward I 75 South: Mackinac Bridge
7
Merge onto I 75
94 mi·1 hr 37 min·I 75
8
Keep slight left at fork onto I 75
124 mi·2 hr 7 min·I 75
Toward I 75: Saginaw, Detroit
9
Keep slight left at fork onto I 75; US 23
11 mi·11 min·I 75; US 23
10
Keep slight right at fork onto US 23
45 mi·48 min·US 23
Toward US 23: Ann ArborUse the straight / slight right lanes.
11
Take the exit onto US 23 BUS
1.5 mi·1 min·US 23 BUS
Exit 45Toward M 14 West: Ann ArborUse the straight / slight right lanes.
12
Take the exit onto US 23 BUS
0.9 mi·1 min·US 23 BUS
Exit 3Toward US 23 BUS: Downtown Ann ArborUse the slight right lane.
13
Turn left onto Depot Street
0.4 mi·1 min·Depot Street
Use the left lane.
14
Turn right
119 ft·6 sec
15
Continue on North State Street
0.6 mi·1 min·North State Street
Use the straight / right lanes.
16
Arrive at destination
South State Street
Trip Plan
For this 6h 17m drive, leaving in the morning is your best bet to maximize daylight and avoid late-night driving. The 347.8-mile distance is easily covered in one day, so you can be flexible with stops. Keep an eye on your fuel gauge, especially during the 229.2-mile stretch on I 75, as services can be spaced out. The $54 fuel estimate should give you a good baseline for budgeting. Consider a brief stop around the halfway point to stretch your legs and refresh before the final leg into Ann Arbor.
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 1 meaningful break for fuel, food, and rest.
The halfway point lands around 173.9 miles from McMillan, MI, or about 3h 14m into the drive.
The longest continuous stretch on this route runs about 229.2 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 77 miles or 1h 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 173.9 miles or 3h 14m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 10m
Traffic, exits, and arrival timing usually matter more near Ann Arbor, MI than in the middle of the route.
Before You Leave
+
Open the route before leaving McMillan, 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 McMillan, MI
This is one driving day of about 347.8 miles and 6h 17m.
Your first comfortable stop window is around 77 miles from McMillan, 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 229.2 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 11
5 decision points cluster between mile 21.3 and 345.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
21.3 mi into trip|~29m in|US 2 / Lake Michigan Scenic Highway
At end of road, turn left onto US 2 / Lake Michigan Scenic Highway
Navigation decision point
6
163.8 mi into trip|~3h 3m in|I 75
Keep slight left at fork onto I 75 toward I 75: Saginaw, Detroit
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 75: Saginaw, Detroit
7
298.9 mi into trip|~5h 22m in|US 23
Keep slight right at fork onto US 23 toward US 23: Ann Arbor
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward US 23: Ann Arbor
7
344.3 mi into trip|~6h 11m in|US 23 BUS
Take the exit onto US 23 BUS toward M 14 West: Ann Arbor
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 45
Toward M 14 West: Ann Arbor
7
345.8 mi into trip|~6h 12m in|US 23 BUS
Take the exit onto US 23 BUS toward US 23 BUS: Downtown Ann Arbor
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 3
Toward US 23 BUS: Downtown Ann Arbor
Fuel & Cost
Regular Gas
$51.36 one way
$102.72 round trip
$3.75/gal25.4 MPG avg122 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$56.70
$113.40
premium
$4.72
$64.58
$129.15
diesel
$4.80
$65.67
$131.34
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$51
Meals
$25–$50
Total
$76–$101
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 121.7 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $37 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
104.3
1
$36.52
$16.69
Efficient EV
87
0
$30.43
$13.91
EV Truck/SUV
139.1
1
$48.69
$22.26
Gas CO2
122 kg
EV CO2
41 kg (66% 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 Jul 17, 2026
Origin
McMillan, MI
Late night
in McMillan on Sunday
Local time
5:22 AM
EDT
Current temp
79°F
Smoke
S 0 to 10 mph29% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 6:42AM EDT by NWS Grand Rapids MI
Special Weather Statement
Special Weather Statement issued July 17 at 6:13AM EDT by NWS Northern Indiana
Destination
Ann Arbor, MI
Late night
in Ann Arbor on Sunday
Local time
5:22 AM
EDT
Current temp
91°F
Smoke
SSE 1 to 7 mph19% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 6:42AM EDT by NWS Grand Rapids MI
Special Weather Statement
Special Weather Statement issued July 17 at 6:13AM EDT by NWS Northern Indiana
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
12 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
6h 17m 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 predominantly highway driving, with 81% of the 347.8 miles on major roads like I 75 and US 23. You'll experience a long stretch of 229.2 miles on I 75, which means extended periods of cruising. The transition to more rural roads will occur as you move away from the primary interstate system. Expect a consistent flow of traffic and numerous exits as you approach more populated areas.
81% highway — fuel and pacing are the main things to plan.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 229.2 mi on I 75.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 75 and US 23. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 21.3 miles in near US 2 / Lake Michigan Scenic Highway.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 11 significant decision points across 347.8 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 21.3 miles (US 2 / Lake Michigan Scenic Highway): Navigation decision point; at 163.8 miles (I 75): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 298.9 miles (US 23): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
1,294 ft593 ft
Total Climb
1,113 ft
Total Descent
1,015 ft
Highest Point
1,294 ft
~149 mi in
Elevation Range
702 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 McMillan, MI to Ann Arbor, MI, road signs begin pointing toward Detroit along the way.
Ann Arbor — often abbreviated as AA or A2 — is a picturesque city surrounding the University of Michigan. It has a strong bent toward the arts, and an attractive and pedestrian-friendly downtown. Visitors enjoy the city's wonderful sidewalk cafe dining, unique shops, lots of bookstores, and abundant cultural opportunities.
Ann Arbor is in Michigan 35 miles (56 km) north of the Ohio border and 45 miles (72 km) west of Detroit, near where the furthest exurban fringes give way to country and small towns. In 2019, the city had a population of about 120,000 people, and thousands of visitors come to town for football games and various festivals.
Top landmarks
•Detroit Observatory — astronomical observatory in Ann Arbor, United States of America
•Kelsey Museum of Archaeology — archaeology museum in Newberry Hall
•Ann Arbor Hands-On Museum — museum in Ann Arbor, Michigan, USA
Doable as a same-day drive at 6h 17m. Total distance: 347.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 17m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 229.2 miles on I 75. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 Ann Arbor, 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 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 21.3 miles (US 2 / Lake Michigan Scenic Highway): Navigation decision point; at 163.8 miles (I 75): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 298.9 miles (US 23): Highway fork - watch signs carefully. Lane positioning matters here.
Not recommended in a single day. At 6.3 hours each way, a round trip means 12.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Ann Arbor, MI before the return drive.
