How far is Saint Louis, MI from Troy, MI?
The driving distance from Saint Louis, MI to Troy, MI is about 98.1 miles (157.8 km), with a travel time of about 02h 00m by car.
- The straight-line flight distance is about 74.4 miles (119.7 km).
- For a round trip, plan for roughly 04h 01m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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.
This route works well as a day trip with time at the destination.
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 02h 00m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Village in Michigan, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Chance Showers And Thunderstorms then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Saint Louis and Troy.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Louis and Troy.
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1
Start on North Main Street
53 m · 10 sec · North Main Street
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2
Turn right onto West Washington Avenue
3042 ft · 1 min · West Washington Avenue
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3
Continue on West Monroe Road
11 mi · 15 min · West Monroe Road
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4
Continue on Northwest Monroe Road
2394 ft · 37 sec · Northwest Monroe Road
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5
Continue on Howard City Edmore Road
9.1 mi · 12 min · Howard City Edmore Road
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6
Continue on East Main Street
1.3 mi · 3 min · East Main Street
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7
Continue on Howard City-Edmore Road
960 ft · 20 sec · Howard City-Edmore Road
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8
Continue on Howard City Edmore Road Northeast
21 mi · 29 min · Howard City Edmore Road Northeast
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9
Continue on West Edgar Road
1.6 mi · 2 min · West Edgar Road
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10
Take the exit right toward US 131 North: Cadillac
2296 ft · 56 sec
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11
Merge slight left
21.8 mi · 22 min
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12
Take the exit slight right toward B-96: 19 Mile Rd
2803 ft · 1 min
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13
Turn left onto 19 Mile Road
1.8 mi · 3 min · 19 Mile Road
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14
Continue on East 13 Mile Road
9.9 mi · 17 min · East 13 Mile Road
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15
Continue on North Walnut Avenue
1.6 km · 2 min · North Walnut Avenue
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16
Turn left onto East 14 Mile Road
4.9 mi · 9 min · East 14 Mile Road
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17
Turn left onto North Bingham Avenue
1 km · 2 min · North Bingham Avenue
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18
Turn right onto West Main Street
1368 ft · 38 sec · West Main Street
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19
Continue on North Cleveland Drive
3.6 mi · 9 min · North Cleveland Drive
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20
Continue on West 13 Mile Road
5.1 mi · 12 min · West 13 Mile Road
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21
Turn right onto North Dickinson Avenue
41 m · 4 sec · North Dickinson Avenue
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22
Arrive at your destination
0 m · 1 sec · North Dickinson Avenue
Car Route Details
A richer read on the saved driving route between Saint Louis and Troy.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
US 131 North
Merge slight left
21.8 mi · 00h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Mostly Sunny leaving Saint Louis and Chance Showers And Thunderstorms then Mostly Sunny near Troy.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Louis to Troy?
The road trip is about 98.1 miles (157.8 km) and usually takes 02h 00m 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?
Morley is a useful midpoint, sitting about 47.5 miles from Saint Louis and 50.6 miles from Troy.
How much longer is the road route than the straight-line distance?
The direct path is about 74.4 miles (119.7 km), while the road route adds roughly 23.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:28 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.05 one way or $26.10 round trip. Estimated CO2 is about 30.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Saint Louis and Chance Showers And Thunderstorms then Mostly Sunny near Troy.
Stop Ideas Near Morley
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 Morley.
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Flight Path Map
This map shows the direct air route between Saint Louis and Troy. Straight-line distance: 74.39 mi (119.72 km).
#1 Saint Louis
City in Michigan, United States
| Population | 7,086 |
| Coordinates | 43.4083600, -84.6066700 |
| Altitude | 223 |
| Country | United States |
#2 Troy
The most populous city in Oakland County, Michigan.
| Population | 83,589 |
| Coordinates | 43.7430700, -86.0192300 |
| Altitude | 251 |
| Country | United States |
End: North Dickinson Avenue (-86.019074, 43.743068)
Estimated Travel Time
Distance: 158 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 16m |
| 40 mph (64.37 km/h) | 02h 27m |
| 50 mph (80.47 km/h) | 01h 57m |
| 60 mph (96.56 km/h) | 01h 38m |
| 70 mph (112.65 km/h) | 01h 24m |
| 80 mph (129 km/h) | 01h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.05 | $26.10 |
| Mid-grade | $4.25 | $14.72 | $29.43 |
| Premium | $4.65 | $16.10 | $32.21 |
| Diesel | $5.30 | $18.35 | $36.70 |
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 · Jul 26, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.