How far is Riley, MI from Macomb, MI?
The driving distance from Riley, MI to Macomb, MI is about 121.6 miles (195.7 km), with a travel time of about 02h 01m by car.
- The straight-line flight distance is about 88.5 miles (142.4 km).
- For a round trip, plan for roughly 04h 03m 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 01m.
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.
City in Michigan, US
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Riley and Macomb.
Turn-by-Turn Driving Directions
Step-by-step road directions between Riley and Macomb.
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1
Start on West Jason Road
1.6 km · 4 min · West Jason Road
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2
Turn right onto South Francis Road
7 mi · 11 min · South Francis Road
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3
Turn left onto West Clark Road
3 mi · 4 min · West Clark Road
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4
Turn right onto Airport Road
2920 ft · 1 min · Airport Road
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5
Take the ramp left toward I 69 East: Flint
2198 ft · 54 sec
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6
Merge slight left
48.4 mi · 50 min
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7
Take the exit slight right toward I 75, US 23: Saginaw, Detroit
1999 ft · 49 sec
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8
Keep slight right to continue on I 75 South, US 23 South: Detroit
1919 ft · 47 sec
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9
Merge slight left
1.9 mi · 2 min
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10
Keep slight left
32.7 mi · 35 min
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11
Take the exit slight right toward I 75 Business, M 24: Pontiac, Lapeer
3091 ft · 1 min
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12
Continue straight
1159 ft · 27 sec
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13
Keep slight right to continue on I 75 Business South: Pontiac
2951 ft · 58 sec
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14
Turn left
27 m · 4 sec
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15
Turn left
47 m · 7 sec
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16
Exit the roundabout onto Shimmons Road
2725 ft · 2 min · Shimmons Road
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17
At the end of the road, turn left onto Shimmons Road
2961 ft · 2 min · Shimmons Road
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18
At the end of the road, turn left onto North Squirrel Road
1370 ft · 38 sec · North Squirrel Road
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19
Turn right onto Tienken Road
3.5 mi · 7 min · Tienken Road
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20
Enter the roundabout and take exit 2 toward West Tienken Road
39 m · 3 sec · West Tienken Road
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21
Exit the roundabout onto West Tienken Road
1.6 mi · 3 min · West Tienken Road
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22
Enter the roundabout and take exit 1 toward East Tienken Road
49 m · 5 sec · East Tienken Road
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23
Exit the roundabout onto East Tienken Road
3161 ft · 1 min · East Tienken Road
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24
Enter the roundabout and take exit 2 toward Runyon Road
46 m · 3 sec · Runyon Road
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25
Exit the roundabout onto Runyon Road
1.4 km · 2 min · Runyon Road
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26
Continue on 25 Mile Road
6 mi · 10 min · 25 Mile Road
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27
Enter the roundabout and take exit 2 toward 25 Mile Road
46 m · 4 sec · 25 Mile Road
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28
Exit the roundabout onto 25 Mile Road
1.4 km · 1 min · 25 Mile Road
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29
Enter the roundabout toward the route
82 m · 7 sec
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30
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Riley and Macomb.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 69 East
Merge slight left
48.4 mi · 00h 50m
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.
Sunny leaving Riley and Sunny near Macomb.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Riley to Macomb?
The road trip is about 121.6 miles (195.7 km) and usually takes 02h 01m 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?
Swartz Creek is a useful midpoint, sitting about 55.9 miles from Riley and 65.7 miles from Macomb.
How much longer is the road route than the straight-line distance?
The direct path is about 88.5 miles (142.4 km), while the road route adds roughly 33.1 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 2:26 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 around Riley and Sunny near Macomb.
Stop Ideas Near Swartz Creek
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 Swartz Creek.
Durand Union Station
Flint station
Owosso, MI
Lapeer station
Flight Path Map
This map shows the direct air route between Riley and Macomb. Straight-line distance: 88.5 mi (142.43 km).
#1 Riley
Township in Clinton County, Michigan
| Population | 3,272 |
| Coordinates | 42.9150300, -84.6805400 |
| Altitude | 229 |
| Country | United States |
#2 Macomb
A city in Macomb County, Michigan.
| Population | 92,131 |
| Coordinates | 42.7008700, -82.9590900 |
| Altitude | 191 |
| Country | United States |
End: Romeo Plank Road (-82.958996, 42.700872)
Estimated Travel Time
Distance: 196 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 03m |
| 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 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round 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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.