How far is Flat Rock, MI from Grand Rapids, MI?

The driving distance from Flat Rock, MI to Grand Rapids, MI is about 379.3 miles (610.4 km), with a travel time of about 06h 08m by car.

  • The straight-line flight distance is about 211.5 miles (340.3 km).
  • For a round trip, plan for roughly 12h 16m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
379.27 mi
06h 08m
Flight
211.44 mi
340.28 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Flat Rock.

Flight Distance

Direct air line
211.44 mi
Kilometers
340.28 km
Flight Time
00h 25m

Driving Distance

Road route
379.27 mi
Kilometers
610.37 km
Drive Time
06h 08m

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 06h 08m.

Arrival Snapshot
Arrive in Grand Rapids
Tue, May 5, 3:57 AM EDT
Return by in Flat Rock
Tue, May 5, 10:06 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Flat Rock
2026-05-04T21:49
Arrive Grand Rapids
Tue, May 5, 3:57 AM EDT
Route Timing
06h 08m
One way by road
Best Departure Window
6:00 AM to 7:30 AM EDT
Treat this as a longer travel day
Arrive between
12:08 PM to 1:38 PM EDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
11:44 PM EDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in Flat Rock
8:00 PM EDT
Overnight-style route

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
Trowbridge
MI

Township in Allegan County, Michigan

From Flat Rock
191.7 mi
03h 04m
To Grand Rapids
187.5 mi
03h 04m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
68°F
Monday

Chance Rain Showers

Starts
Mon, May 4 6:00 AM EDT
Wind
5 to 15 mph SW
Destination
73°F
Monday

Sunny

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

Driving Route Map

The map below follows the saved road route between Flat Rock and Grand Rapids.

Turn-by-Turn Driving Directions

Step-by-step road directions between Flat Rock and Grand Rapids.

  1. 1

    Start on 20th Road

    36 m · 5 sec · 20th Road

  2. 2

    Continue on County 416 20th Road

    3.5 mi · 5 min · County 416 20th Road

  3. 3

    At the end of the road, turn left onto County 426 M.5 Road

    1 mi · 1 min · County 426 M.5 Road

  4. 4

    Turn right onto County 420 21st Road

    3 mi · 4 min · County 420 21st Road

  5. 5

    Continue on South Hill Road

    1 km · 2 min · South Hill Road

  6. 6

    Continue on Blackwell Avenue

    1279 ft · 35 sec · Blackwell Avenue

  7. 7

    Continue on South Hill Road

    139 m · 22 sec · South Hill Road

  8. 8

    Turn left

    133.2 mi · 2 hr 37 min

  9. 9

    Take the exit slight right toward I 75 South: Mackinac Bridge

    1819 ft · 44 sec

  10. 10

    Merge slight left

    94.1 mi · 1 hr 37 min

  11. 11

    Keep slight right to continue on US 127: Clare, Lansing

    18.3 mi · 18 min

  12. 12

    Take the exit slight right toward M 55 West: Cadillac

    1808 ft · 46 sec

  13. 13

    Turn right onto West Lake City Road

    2.2 mi · 3 min · West Lake City Road

  14. 14

    Continue on East Houghton Lake Road

    17.9 mi · 25 min · East Houghton Lake Road

  15. 15

    Turn left onto Main Street

    2727 ft · 46 sec · Main Street

  16. 16

    Continue on Lake Shore

    1.1 km · 1 min · Lake Shore

  17. 17

    Continue on South Shore Drive

    688 ft · 12 sec · South Shore Drive

  18. 18

    Continue on Lakeshore Drive

    1149 ft · 19 sec · Lakeshore Drive

  19. 19

    Continue on South Morey Road

    3.5 mi · 5 min · South Morey Road

  20. 20

    Turn right onto West Blue Road

    1.5 mi · 2 min · West Blue Road

  21. 21

    Continue on Watergate Road

    4.6 mi · 6 min · Watergate Road

  22. 22

    Continue on East M-55 Highway

    1.9 mi · 3 min · East M-55 Highway

  23. 23

    Take the ramp left

    1 km · 1 min

  24. 24

    Merge slight left

    93.8 mi · 1 hr 35 min

  25. 25

    Take the exit slight left toward I 196 East: Lansing

    1720 ft · 47 sec

  26. 26

    Merge slight right onto Gerald R Ford Freeway

    765 ft · 10 sec · Gerald R Ford Freeway

  27. 27

    Take the exit slight right toward Ottawa Avenue, Downtown

    137 m · 11 sec

  28. 28

    Keep slight right to continue on Downtown

    127 m · 10 sec

  29. 29

    Continue on Ottawa Avenue Northwest

    2177 ft · 1 min · Ottawa Avenue Northwest

  30. 30

    Turn left onto Monroe Center Street Northwest

    801 ft · 31 sec · Monroe Center Street Northwest

  31. 31

    Turn right onto Division Avenue North

    56 m · 11 sec · Division Avenue North

  32. 32

    Turn right onto Fulton Street West

    17 m · 2 sec · Fulton Street West

  33. 33

    Arrive at your destination

    0 m · 1 sec · Fulton Street West

Car Route Details

A richer read on the saved driving route between Flat Rock and Grand Rapids.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
33 steps
9 turns on the saved route
Ramps & Exits
8
3 merges, 5 ramps or exits
Navigation Density
8.7 / 100 mi
Decision points by distance
Main Roads
East M-55 Highway
96.4 mi · 25%
I 75 South
94.4 mi · 25%
US 127
18.3 mi · 5%
East Houghton Lake Road
17.9 mi · 5%
Watergate Road
4.59 mi · 1%
South Morey Road
3.51 mi · 1%
Longest Stretch

Longest stretch

Turn left

133 mi · 02h 37m

Route Summary

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

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
06h 08m
Overnight route
Same-Day Return
12h 16m
Round-trip wheel time
Road vs Air
+167.8 mi
211.5 mi direct line
Halfway Stop
Trowbridge
03h 04m from Flat Rock
Leave By
11:44 PM EDT
Overnight-style route
Weather Watch

Chance Rain Showers leaving Flat Rock and Sunny near Grand Rapids.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Flat Rock to Grand Rapids?

The road trip is about 379.3 miles (610.4 km) and usually takes 06h 08m in normal driving conditions.

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

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Trowbridge is a useful midpoint, sitting about 191.7 miles from Flat Rock and 187.5 miles from Grand Rapids.

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

The direct path is about 211.5 miles (340.3 km), while the road route adds roughly 167.8 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 6:00 AM to 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $50.46 one way or $100.91 round trip. Estimated CO2 is about 118.9 kg one way.

What should you check before leaving?

Before you leave, expect Chance Rain Showers around Flat Rock and Sunny near Grand Rapids.

Stop Ideas Near Trowbridge

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

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

BUS

Walloon Lake, Michigan

27 mi away
Hwy 131 & Hwy 75
BUS

Alanson, MI

28 mi away
7640 Burr Avenue
BUS

Petoskey, Michigan

34 mi away
301 West Mitchell St.
BUS

Boyne City, Michigan

35 mi away
1000 East Division St.

Flight Path Map

This map shows the direct air route between Flat Rock and Grand Rapids. Straight-line distance: 211.44 mi (340.28 km).

Flat Rock

#1 Flat Rock

City in Michigan, United States

Population9,959
Coordinates45.8258000, -87.1834700
Altitude234
CountryUnited States
Grand Rapids

#2 Grand Rapids

The second most populous city in Michigan.

Population200,031
Coordinates42.9633600, -85.6680900
Altitude195
CountryUnited States
Start: 20th Road (-87.183474, 45.826064)
End: West Fulton Street (-85.668092, 42.963219)

Estimated Travel Time

Distance: 610 km by road

SpeedTime
30 mph (48.3 km/h)12h 38m
40 mph (64.37 km/h)09h 28m
50 mph (80.47 km/h)07h 35m
60 mph (96.56 km/h)06h 19m
70 mph (112.65 km/h)05h 25m
80 mph (129 km/h)04h 43m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
13.38 gal
50.66 L · about $50.46
Round trip
$100.91
26.76 gal · 101.32 L
Estimated CO2
118.9 kg one way
Round trip: 237.8 kg / 524 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $50.46 $100.91
Mid-grade $4.25 $56.91 $113.81
Premium $4.65 $62.27 $124.54
Diesel $5.30 $70.97 $141.94

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 Flat Rock and Grand Rapids. The current time is 21:49:20.

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.