How far is Grass Lake, MI from Ann Arbor, MI?

The driving distance from Grass Lake, MI to Ann Arbor, MI is about 25.4 miles (40.9 km), with a travel time of about 00h 33m by car.

  • The straight-line flight distance is about 24.2 miles (39 km).
  • For a round trip, plan for roughly 01h 06m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
25.42 mi
00h 33m
Flight
24.21 mi
38.96 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Grass Lake.

Flight Distance

Direct air line
24.21 mi
Kilometers
38.96 km
Flight Time
00h 02m

Driving Distance

Road route
25.42 mi
Kilometers
40.91 km
Drive Time
00h 33m

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 33m.

Arrival Snapshot
Arrive in Ann Arbor
Tue, May 12, 8:00 PM EDT
Return by in Grass Lake
Tue, May 12, 8:33 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Grass Lake
2026-05-12T19:27
Arrive Ann Arbor
Tue, May 12, 8:00 PM EDT
Route Timing
00h 33m
One way by road
Best Departure Window
7:00 AM to 7:00 PM EDT
Leave when it suits your day
Arrive between
7:33 AM to 7:33 PM EDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:24 PM EDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Grass Lake
10:00 PM EDT
Flexible departure

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
Chelsea
MI

City in Washtenaw County, Michigan, United States of America

From Grass Lake
12.7 mi
00h 16m
To Ann Arbor
12.7 mi
00h 16m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
36°F
Overnight

Areas Of Frost

Starts
Tue, May 12 1:00 AM EDT
Wind
5 mph ESE
Destination
36°F
Overnight

Widespread Frost

Starts
Tue, May 12 4:00 AM EDT
Wind
3 mph E

Driving Route Map

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

Turn-by-Turn Driving Directions

Step-by-step road directions between Grass Lake and Ann Arbor.

  1. 1

    Start on South Lake Street

    16 m · 6 sec · South Lake Street

  2. 2

    Turn right onto East Michigan Avenue

    4.4 mi · 8 min · East Michigan Avenue

  3. 3

    Continue on Jackson Road

    3.2 mi · 4 min · Jackson Road

  4. 4

    Continue on Old US 12

    1734 ft · 34 sec · Old US 12

  5. 5

    Take the ramp right toward I 94 East: Dertoit

    1884 ft · 46 sec

  6. 6

    Merge slight left

    13.3 mi · 14 min

  7. 7

    Keep slight right to continue on I 94, I 94 Business: Detroit, Ann Arbor

    3011 ft · 37 sec

  8. 8

    Take the exit slight right toward I 94 Business: Ann Arbor

    3 mi · 7 min

  9. 9

    Turn right onto South State Street

    1325 ft · 36 sec · South State Street

  10. 10

    Arrive at your destination

    0 m · 1 sec · South State Street

Car Route Details

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

OSRM road route
Drive Character

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.

Directions
10 steps
2 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
39.4 / 100 mi
Decision points by distance
Main Roads
I 94 East
13.7 mi · 54%
East Michigan Avenue
4.42 mi · 17%
Jackson Road
3.21 mi · 13%
I 94 Business
3.01 mi · 12%
I 94
0.57 mi · 2%
Old US 12
0.33 mi · 1%
Longest Stretch

I 94 East

Merge slight left

13.3 mi · 00h 14m

Route Summary

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

Trip Read

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.

Drive Time
00h 33m
Quick drive
Same-Day Return
01h 06m
Round-trip wheel time
Road vs Air
+1.2 mi
24.2 mi direct line
Halfway Stop
Chelsea
00h 16m from Grass Lake
Leave By
7:24 PM EDT
Flexible departure
Weather Watch

Areas Of Frost leaving Grass Lake and Widespread Frost near Ann Arbor.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Grass Lake to Ann Arbor?

The road trip is about 25.4 miles (40.9 km) and usually takes 00h 33m 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?

Chelsea is a useful midpoint, sitting about 12.7 miles from Grass Lake and 12.7 miles from Ann Arbor.

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

The direct path is about 24.2 miles (39 km), while the road route adds roughly 1.2 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:24 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $3.39 one way or $6.79 round trip. Estimated CO2 is about 8 kg one way.

What should you check before leaving?

Before you leave, expect Areas Of Frost around Grass Lake and Widespread Frost near Ann Arbor.

Stop Ideas Near Chelsea

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

Mid-route Guidance
Local place coverage is thin around Chelsea, 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 Chelsea.

RAIL

Ann Arbor station

23 mi away
325 Depot Street
RAIL

Jackson station

32 mi away
501 E. Michigan Ave.
RAIL

East Lansing station

59 mi away
1240 South Harrison Road
RAIL

Albion station

61 mi away
300 North Eaton St.

Flight Path Map

This map shows the direct air route between Grass Lake and Ann Arbor. Straight-line distance: 24.21 mi (38.96 km).

Grass Lake

#1 Grass Lake

Village in Michigan, United States

Population1,140
Coordinates42.2508700, -84.2130100
Altitude303
CountryUnited States
Ann Arbor

#2 Ann Arbor

The most populous city in Washtenaw County, Michigan.

Population119,280
Coordinates42.2775600, -83.7408800
Altitude269
CountryUnited States
Start: South Lake Street (-84.212874, 42.250917)
End: South State Street (-83.740762, 42.277562)

Estimated Travel Time

Distance: 41 km by road

SpeedTime
30 mph (48.3 km/h)00h 50m
40 mph (64.37 km/h)00h 38m
50 mph (80.47 km/h)00h 30m
60 mph (96.56 km/h)00h 25m
70 mph (112.65 km/h)00h 21m
80 mph (129 km/h)00h 19m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.9 gal
3.4 L · about $3.39
Round trip
$6.79
1.8 gal · 6.8 L
Estimated CO2
8 kg one way
Round trip: 16 kg / 35 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $3.39 $6.79
Mid-grade $4.25 $3.83 $7.66
Premium $4.65 $4.19 $8.38
Diesel $5.30 $4.77 $9.55

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 12, 2026

There is no time difference between Grass Lake and Ann Arbor. The current time is 19:27:01.

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.