How far is Smithville, OH from Dayton, OH?
The driving distance from Smithville, OH to Dayton, OH is about 172.1 miles (277 km), with a travel time of about 02h 46m by car.
- The straight-line flight distance is about 144.5 miles (232.5 km).
- For a round trip, plan for roughly 05h 33m 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 46m.
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 Ohio
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Smithville and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithville and Dayton.
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1
Start on North Summit Street
18 m · 4 sec · North Summit Street
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2
Turn right onto West Main Street
2570 ft · 1 min · West Main Street
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3
Continue on Akron Road
2 mi · 3 min · Akron Road
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4
Enter the roundabout and take exit 2 toward Akron Road
32 m · 2 sec · Akron Road
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5
Exit the roundabout onto Akron Road
2.6 mi · 3 min · Akron Road
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6
Take the exit right
1717 ft · 42 sec
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7
Merge slight left
1392 ft · 17 sec
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8
Take the exit slight right
5.3 mi · 7 min
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9
Keep slight left to continue on West Lincoln Way
22.2 mi · 28 min · West Lincoln Way
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10
Take the exit right toward I 71 South: Columbus
3100 ft · 59 sec
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11
Merge slight left
66.5 mi · 1 hr 12 min
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12
Take the exit slight right toward I 670 East, I 670 West: Airport, Dayton
1692 ft · 41 sec
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13
Keep slight right to continue on I 670 West: Dayton
1491 ft · 36 sec
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14
Merge slight left onto Northeast Freeway
1248 ft · 19 sec · Northeast Freeway
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15
Keep slight right
4.5 mi · 6 min
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16
Merge slight right onto West Freeway
54.2 mi · 58 min · West Freeway
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17
Take the exit slight right toward SR 4, SR 235: Dayton, New Carlisle
1730 ft · 42 sec
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18
Keep slight left to continue on SR 4, SR 235 South: Dayton
11.1 mi · 14 min
-
19
Take the exit slight right toward SR 48: Main Street, Grand Avenue
1108 ft · 29 sec
-
20
Turn left onto North Main Street
1.4 km · 2 min · North Main Street
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21
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Smithville and Dayton.
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 71 South
Merge slight left
66.5 mi · 01h 12m
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 Smithville and Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithville to Dayton?
The road trip is about 172.1 miles (277 km) and usually takes 02h 46m 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?
Westerville is a useful midpoint, sitting about 86.1 miles from Smithville and 86.1 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 144.5 miles (232.5 km), while the road route adds roughly 27.6 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 12:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.49 one way or $44.98 round trip. Estimated CO2 is about 53.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Smithville and Sunny near Dayton.
Stop Ideas Near Westerville
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 Westerville.
Columbus, OH
Flight Path Map
This map shows the direct air route between Smithville and Dayton. Straight-line distance: 144.49 mi (232.53 km).
#1 Smithville
Human settlement in Wayne County, Ohio, United States of America
| Population | 1,261 |
| Coordinates | 40.8622800, -81.8618000 |
| Altitude | 324 |
| Country | United States |
#2 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
End: South Main Street (-84.191655, 39.758942)
Estimated Travel Time
Distance: 277 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 44m |
| 40 mph (64.37 km/h) | 04h 18m |
| 50 mph (80.47 km/h) | 03h 26m |
| 60 mph (96.56 km/h) | 02h 52m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $22.49 | $44.98 |
| Mid-grade | $4.24 | $25.75 | $51.50 |
| Premium | $4.79 | $29.08 | $58.15 |
| Diesel | $4.30 | $26.13 | $52.25 |
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 Ohio · 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.