How far is Ann Arbor, MI from Petersburg, MI?
The driving distance from Ann Arbor, MI to Petersburg, MI is about 30.7 miles (49.4 km), with a travel time of about 00h 39m by car.
- The straight-line flight distance is about 26 miles (41.9 km).
- For a round trip, plan for roughly 01h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
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 00h 39m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Michigan, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Slight Chance Showers And Thunderstorms
Sunny
Driving Route Map
The map below follows the saved road route between Ann Arbor and Petersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ann Arbor and Petersburg.
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1
Start on South State Street
113 m · 15 sec · South State Street
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2
Turn right onto North University Avenue
1347 ft · 41 sec · North University Avenue
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3
Continue on Geddes Avenue
584 ft · 18 sec · Geddes Avenue
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4
Turn slight right onto Washtenaw Court
107 m · 15 sec · Washtenaw Court
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5
Turn slight right onto Washtenaw Avenue
2.9 mi · 6 min · Washtenaw Avenue
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6
Take the ramp slight right toward US 23 SOUTH, BL I 94: Toledo
24.2 mi · 26 min
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7
Take the exit slight right toward Ida, Petersburg
787 ft · 20 sec
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8
Turn right onto Ida West Road
2.6 mi · 5 min · Ida West Road
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9
Continue on Division Street
122 m · 10 sec · Division Street
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10
Turn right onto East Center Street
1278 ft · 28 sec · East Center Street
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11
Turn right onto Saline Street
8 m · 1 sec · Saline Street
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12
Arrive at your destination
0 m · 1 sec · Saline Street
Car Route Details
A richer read on the saved driving route between Ann Arbor and Petersburg.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
US 23 SOUTH
Take the ramp slight right toward US 23 SOUTH, BL I 94: Toledo
24.2 mi · 00h 26m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny then Slight Chance Showers And Thunderstorms leaving Ann Arbor and Sunny near Petersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ann Arbor to Petersburg?
The road trip is about 30.7 miles (49.4 km) and usually takes 00h 39m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Milan is a useful midpoint, sitting about 15.3 miles from Ann Arbor and 15.3 miles from Petersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 26 miles (41.9 km), while the road route adds roughly 4.7 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:12 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.07 one way or $8.15 round trip. Estimated CO2 is about 9.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Slight Chance Showers And Thunderstorms around Ann Arbor and Sunny near Petersburg.
Stop Ideas Near Milan
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Milan.
Ann Arbor station
Greenfield Village, Michigan
John D. Dingell Transit Center
Martin Luther King, Jr. Plaza
Flight Path Map
This map shows the direct air route between Ann Arbor and Petersburg. Straight-line distance: 26.04 mi (41.91 km).
#1 Ann Arbor
The most populous city in Washtenaw County, Michigan.
| Population | 119,280 |
| Coordinates | 42.2775600, -83.7408800 |
| Altitude | 269 |
| Country | United States |
#2 Petersburg
City in Monroe County, Michigan
| Population | 1,130 |
| Coordinates | 41.9011600, -83.7149400 |
| Altitude | 206 |
| Country | United States |
End: Petersburg (-83.71494, 41.90116)
Estimated Travel Time
Distance: 49 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 01m |
| 40 mph (64.37 km/h) | 00h 46m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 26m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.07 | $8.15 |
| Mid-grade | $4.25 | $4.59 | $9.19 |
| Premium | $4.65 | $5.03 | $10.05 |
| Diesel | $5.30 | $5.73 | $11.46 |
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 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.