How far is Detroit, MI from Riley, MI?
The driving distance from Detroit, MI to Riley, MI is about 111 miles (178.6 km), with a travel time of about 02h 12m by car.
- The straight-line flight distance is about 92.4 miles (148.7 km).
- For a round trip, plan for roughly 04h 24m 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 12m.
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.
Human settlement in Livingston County, Michigan, United States of America
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 Detroit and Riley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Detroit and Riley.
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1
Start on Cadillac Square
95 m · 15 sec · Cadillac Square
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2
Turn right onto Bates Street
75 m · 7 sec · Bates Street
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3
Turn right onto East Congress Street
649 ft · 38 sec · East Congress Street
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4
Turn left onto Griswold Street
635 ft · 26 sec · Griswold Street
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5
Turn right onto West Jefferson Avenue
1638 ft · 31 sec · West Jefferson Avenue
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6
Continue on John C Lodge Freeway
17.8 mi · 23 min · John C Lodge Freeway
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7
Take the exit slight left toward I 696 West: Lansing
2310 ft · 56 sec
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8
Merge slight left onto Walter P Reuther Freeway
8.2 mi · 9 min · Walter P Reuther Freeway
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9
Merge slight right
17.9 mi · 19 min
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10
Keep slight left
54.8 mi · 59 min
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11
Keep slight left to continue on I 96 West: Grand Rapids
3233 ft · 39 sec
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12
Take the exit slight right toward Grand River Ave
1339 ft · 35 sec
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13
Turn right onto West Grand River Avenue
933 ft · 20 sec · West Grand River Avenue
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14
Turn left onto Francis Road
9.1 mi · 14 min · Francis Road
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15
Turn left onto West Jason Road
1.6 km · 4 min · West Jason Road
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16
Arrive at your destination
0 m · 1 sec · West Jason Road
Car Route Details
A richer read on the saved driving route between Detroit and Riley.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Walter P Reuther Freeway
Keep slight left
54.8 mi · 00h 59m
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 Detroit and Sunny near Riley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Detroit to Riley?
The road trip is about 111 miles (178.6 km) and usually takes 02h 12m 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?
Howell is a useful midpoint, sitting about 55.4 miles from Detroit and 55.6 miles from Riley.
How much longer is the road route than the straight-line distance?
The direct path is about 92.4 miles (148.7 km), while the road route adds roughly 18.6 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 2:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.78 one way or $29.56 round trip. Estimated CO2 is about 34.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Detroit and Sunny near Riley.
Stop Ideas Near Howell
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 Howell.
Durand Union Station
Ann Arbor station
Owosso, MI
East Lansing station
Flight Path Map
This map shows the direct air route between Detroit and Riley. Straight-line distance: 92.37 mi (148.66 km).
#1 Detroit
The twenty-fourth most populous city in the United States and the center of the Detroit metropolitan area.
| Population | 665,369 |
| Coordinates | 42.3314300, -83.0457500 |
| Altitude | 183 |
| Country | United States |
#2 Riley
Township in Clinton County, Michigan
| Population | 3,272 |
| Coordinates | 42.9150300, -84.6805400 |
| Altitude | 229 |
| Country | United States |
End: Riley (-84.68054, 42.91503)
Estimated Travel Time
Distance: 179 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 41m |
| 40 mph (64.37 km/h) | 02h 46m |
| 50 mph (80.47 km/h) | 02h 13m |
| 60 mph (96.56 km/h) | 01h 50m |
| 70 mph (112.65 km/h) | 01h 35m |
| 80 mph (129 km/h) | 01h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.78 | $29.56 |
| Mid-grade | $4.25 | $16.67 | $33.34 |
| Premium | $4.65 | $18.24 | $36.49 |
| Diesel | $5.30 | $20.79 | $41.58 |
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.