How far is Ottawa County, OH from Dayton, OH?
The driving distance from Ottawa County, OH to Dayton, OH is about 168.6 miles (271.4 km), with a travel time of about 02h 45m by car.
- The straight-line flight distance is about 136.8 miles (220.2 km).
- For a round trip, plan for roughly 05h 31m 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 45m.
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 Allen County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Ottawa County and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ottawa County and Dayton.
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1
Start on South Port Clinton South Road
111 m · 21 sec · South Port Clinton South Road
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2
Turn left onto West Wilcox Road
1.7 mi · 7 min · West Wilcox Road
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3
At the end of the road, turn left onto West Fremont Road
9.8 mi · 15 min · West Fremont Road
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4
Enter the roundabout and take exit 2 toward the route
48 m · 2 sec
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5
Exit the roundabout
2.2 mi · 3 min
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6
Take the exit right
2431 ft · 59 sec
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7
Merge slight left onto Bypass Highway
1.7 mi · 2 min · Bypass Highway
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8
Keep slight left to continue on Bypass Highway
1.2 mi · 2 min · Bypass Highway
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9
Enter the roundabout and take exit 1 toward Bypass Highway
19 m · 4 sec · Bypass Highway
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10
Exit the roundabout onto Bypass Highway
1.3 km · 1 min · Bypass Highway
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11
Turn right onto Hayes Avenue
24.4 mi · 34 min · Hayes Avenue
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12
Turn left
2092 ft · 51 sec
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13
Merge slight left
124.5 mi · 2 hr 15 min
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14
Merge slight left
51 m · 2 sec
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15
Take the exit slight right toward SR 48: Main Street, Grand Avenue
1108 ft · 29 sec
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16
Turn left onto North Main Street
1.4 km · 2 min · North Main Street
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17
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Ottawa County and Dayton.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Hayes Avenue
Merge slight left
125 mi · 02h 15m
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.
Chance Rain Showers leaving Ottawa County and Slight Chance Rain Showers then Mostly Cloudy near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ottawa County to Dayton?
The road trip is about 168.6 miles (271.4 km) and usually takes 02h 45m 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?
Beaverdam is a useful midpoint, sitting about 84.3 miles from Ottawa County and 84.4 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 136.8 miles (220.2 km), while the road route adds roughly 31.8 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 12:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.79 one way or $45.58 round trip. Estimated CO2 is about 52.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Ottawa County and Slight Chance Rain Showers then Mostly Cloudy near Dayton.
Stop Ideas Near Beaverdam
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 Beaverdam.
Bryan
Martin Luther King, Jr. Plaza
Waterloo
Flight Path Map
This map shows the direct air route between Ottawa County and Dayton. Straight-line distance: 136.8 mi (220.16 km).
#1 Ottawa County
County in Ohio, United States
| Population | 40,253 |
| Coordinates | 41.4967500, -82.9412800 |
| Altitude | 174 |
| 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: 271 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 37m |
| 40 mph (64.37 km/h) | 04h 13m |
| 50 mph (80.47 km/h) | 03h 22m |
| 60 mph (96.56 km/h) | 02h 48m |
| 70 mph (112.65 km/h) | 02h 24m |
| 80 mph (129 km/h) | 02h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.83 | $22.79 | $45.58 |
| Mid-grade | $4.38 | $26.08 | $52.16 |
| Premium | $4.93 | $29.32 | $58.63 |
| Diesel | $6.07 | $36.10 | $72.21 |
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 · Oct 15, 2026