How far is Ann Arbor, MI from Porter, MI?

The driving distance from Ann Arbor, MI to Porter, MI is about 121.5 miles (195.6 km), with a travel time of about 02h 26m by car.

  • The straight-line flight distance is about 93.3 miles (150.1 km).
  • For a round trip, plan for roughly 04h 53m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Trip Tools

Reverse, save, or send this route

This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
121.55 mi
02h 26m
Flight
93.28 mi
150.12 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Ann Arbor.

Flight Distance

Direct air line
93.28 mi
Kilometers
150.12 km
Flight Time
00h 11m

Driving Distance

Road route
121.55 mi
Kilometers
195.61 km
Drive Time
02h 26m

Gas Cost Calculator

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Drive time stays fixed at 02h 26m.

Arrival Snapshot
Arrive in Porter
Tue, May 5, 1:32 AM EDT
Return by in Ann Arbor
Tue, May 5, 3:59 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Ann Arbor
2026-05-04T23:05
Arrive Porter
Tue, May 5, 1:32 AM EDT
Route Timing
02h 26m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EDT
Aim for a morning departure
Arrive between
10:27 AM to 12:27 PM EDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
1:36 PM EDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Ann Arbor
9:30 PM EDT
Morning start is best

You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Mount Morris
MI

Village in Illinois

From Ann Arbor
60.8 mi
01h 13m
To Porter
60.8 mi
01h 13m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
73°F
Monday

Sunny then Slight Chance Showers And Thunderstorms

Starts
Mon, May 4 6:00 AM EDT
Wind
9 to 17 mph SW
Destination
71°F
Monday

Mostly Sunny

Starts
Mon, May 4 6:00 AM EDT
Wind
7 to 18 mph SW

Driving Route Map

The map below follows the saved road route between Ann Arbor and Porter.

Turn-by-Turn Driving Directions

Step-by-step road directions between Ann Arbor and Porter.

  1. 1

    Start on South State Street

    1325 ft · 43 sec · South State Street

  2. 2

    Turn left onto East Huron Street

    2058 ft · 1 min · East Huron Street

  3. 3

    Turn right onto North Main Street

    1.2 mi · 3 min · North Main Street

  4. 4

    Take the ramp straight toward M 14 East, US 23: Flint, Detroit

    835 ft · 20 sec

  5. 5

    Merge slight left

    1.1 mi · 1 min

  6. 6

    Keep left to continue on US 23 North: Flint

    80.1 mi · 1 hr 26 min

  7. 7

    Take the exit slight right toward M 46: Buena Vista, Sandusky

    1287 ft · 45 sec

  8. 8

    Enter the roundabout and take exit 1 toward East Holland Avenue

    4 m · 1 sec · East Holland Avenue

  9. 9

    Exit the roundabout onto East Holland Avenue

    1099 ft · 16 sec · East Holland Avenue

  10. 10

    Enter the roundabout and take exit 2 toward East Holland Avenue

    32 m · 6 sec · East Holland Avenue

  11. 11

    Exit the roundabout onto East Holland Avenue

    1.1 mi · 1 min · East Holland Avenue

  12. 12

    Turn slight right onto East Remington Street

    1.1 mi · 1 min · East Remington Street

  13. 13

    Turn left onto Sheridan Avenue

    1.9 mi · 2 min · Sheridan Avenue

  14. 14

    Continue on Williams Street

    2311 ft · 34 sec · Williams Street

  15. 15

    Turn left onto Gratiot Avenue

    1.3 mi · 2 min · Gratiot Avenue

  16. 16

    Continue on Gratiot Road

    11.4 mi · 13 min · Gratiot Road

  17. 17

    Continue on East Saginaw Street

    3158 ft · 41 sec · East Saginaw Street

  18. 18

    Continue on North Saginaw Street

    715 ft · 9 sec · North Saginaw Street

  19. 19

    Continue on Gratiot Road

    4.1 mi · 5 min · Gratiot Road

  20. 20

    Continue on Saginaw Street

    2661 ft · 1 min · Saginaw Street

  21. 21

    Continue on West Saginaw Street

    1.2 km · 2 min · West Saginaw Street

  22. 22

    Continue on Gratiot Road

    1.2 mi · 2 min · Gratiot Road

  23. 23

    Continue on East Monroe Road

    5 mi · 7 min · East Monroe Road

  24. 24

    Turn right onto North 8th Street

    1194 ft · 41 sec · North 8th Street

  25. 25

    Continue on North McClelland Road

    3.8 mi · 5 min · North McClelland Road

  26. 26

    Continue on 11 Mile Road

    2.5 mi · 6 min · 11 Mile Road

  27. 27

    Continue on West Odd Road

    2589 ft · 1 min · West Odd Road

  28. 28

    Continue on South Porter Road

    1.3 mi · 3 min · South Porter Road

  29. 29

    Arrive at your destination

    0 m · 1 sec · South Porter Road

Car Route Details

A richer read on the saved driving route between Ann Arbor and Porter.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
29 steps
10 turns on the saved route
Ramps & Exits
7
1 merges, 6 ramps or exits
Navigation Density
23.9 / 100 mi
Decision points by distance
Main Roads
US 23 North
80.1 mi · 66%
Gratiot Road
16.7 mi · 14%
East Monroe Road
5 mi · 4%
North McClelland Road
3.79 mi · 3%
11 Mile Road
2.52 mi · 2%
Sheridan Avenue
1.95 mi · 2%
Longest Stretch

US 23 North

Keep left to continue on US 23 North: Flint

80.1 mi · 01h 26m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A comfortable day-trip route

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

Drive Time
02h 26m
Day trip friendly
Same-Day Return
04h 54m
Round-trip wheel time
Road vs Air
+28.2 mi
93.3 mi direct line
Halfway Stop
Mount Morris
01h 13m from Ann Arbor
Leave By
1:36 PM EDT
Morning start is best
Weather Watch

Sunny then Slight Chance Showers And Thunderstorms leaving Ann Arbor and Mostly Sunny near Porter.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Ann Arbor to Porter?

The road trip is about 121.5 miles (195.6 km) and usually takes 02h 26m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

What is the halfway point on this route?

Mount Morris is a useful midpoint, sitting about 60.8 miles from Ann Arbor and 60.8 miles from Porter.

How much longer is the road route than the straight-line distance?

The direct path is about 93.3 miles (150.1 km), while the road route adds roughly 28.2 extra miles because roads do not follow the straight air line.

When is the best time to leave for this route?

A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 1:36 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $16.18 one way or $32.36 round trip. Estimated CO2 is about 38.1 kg one way.

What should you check before leaving?

Before you leave, expect Sunny then Slight Chance Showers And Thunderstorms around Ann Arbor and Mostly Sunny near Porter.

Stop Ideas Near Mount Morris

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Mount Morris, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Mount Morris.

RAIL

Flint station

12 mi away
1407 South Dort Highway
RAIL

Durand Union Station

33 mi away
200 South Railroad St.
RAIL

Lapeer station

33 mi away
73 Howard St.
BUS

Saginaw, MI

40 mi away
511 Johnson Street

Flight Path Map

This map shows the direct air route between Ann Arbor and Porter. Straight-line distance: 93.28 mi (150.12 km).

Ann Arbor

#1 Ann Arbor

The most populous city in Washtenaw County, Michigan.

Population119,280
Coordinates42.2775600, -83.7408800
Altitude269
CountryUnited States
Porter

#2 Porter

Township in Midland County, Michigan

Population2,447
Coordinates43.5186400, -84.4663900
Altitude206
CountryUnited States
Start: Ann Arbor (-83.74088, 42.27756)
End: Porter (-84.46639, 43.51864)

Estimated Travel Time

Distance: 196 km by road

SpeedTime
30 mph (48.3 km/h)04h 02m
40 mph (64.37 km/h)03h 02m
50 mph (80.47 km/h)02h 25m
60 mph (96.56 km/h)02h 01m
70 mph (112.65 km/h)01h 44m
80 mph (129 km/h)01h 30m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
4.29 gal
16.24 L · about $16.18
Round trip
$32.36
8.58 gal · 32.48 L
Estimated CO2
38.1 kg one way
Round trip: 76.3 kg / 168 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $16.18 $32.36
Mid-grade $4.25 $18.25 $36.49
Premium $4.65 $19.97 $39.93
Diesel $5.30 $22.75 $45.51

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in Michigan · May 05, 2026

There is no time difference between Ann Arbor and Porter. The current time is 23:05:43.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.