How far is Dayton, OH from Ottawa County, OH?
The driving distance from Dayton, OH to Ottawa County, OH is about 168.9 miles (271.8 km), with a travel time of about 03h 22m by car.
- The straight-line flight distance is about 136.8 miles (220.2 km).
- For a round trip, plan for roughly 06h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 22m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Slight Chance Rain Showers then Mostly Cloudy
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Dayton and Ottawa County.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Ottawa County.
-
1
Start on South Main Street
1.3 km · 2 min · South Main Street
-
2
Take the ramp right toward I 75 North, SR 4 North: Toledo, Springfield
43 m · 3 sec
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3
Keep slight left to continue on I 75 North: Toledo
1458 ft · 36 sec
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4
Merge slight left
124.6 mi · 2 hr 15 min
-
5
Take the exit slight right toward US 6: Napoleon, Fremont
1697 ft · 41 sec
-
6
Keep slight right
1041 ft · 26 sec
-
7
Merge slight left
23.9 mi · 33 min
-
8
Turn left onto Bypass Highway
1.3 km · 1 min · Bypass Highway
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9
Enter the roundabout and take exit 2 toward Bypass Highway
31 m · 6 sec · Bypass Highway
-
10
Exit the roundabout onto Bypass Highway
3.2 mi · 4 min · Bypass Highway
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11
Take the exit slight right toward SR 53 North: Port Clinton, Lake Erie Island
3 mi · 4 min
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12
Enter the roundabout and take exit 1 toward the route
26 m · 1 sec
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13
Exit the roundabout
9.8 mi · 15 min
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14
Turn right onto West Wilcox Road
1.7 mi · 7 min · West Wilcox Road
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15
Turn right onto South Port Clinton South Road
111 m · 16 sec · South Port Clinton South Road
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16
Arrive at your destination
0 m · 1 sec · South Port Clinton South Road
Car Route Details
A richer read on the saved driving route between Dayton and Ottawa County.
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 75 North
Merge slight left
125 mi · 02h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Rain Showers then Mostly Cloudy leaving Dayton and Chance Rain Showers near Ottawa County.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Ottawa County?
The road trip is about 168.9 miles (271.8 km) and usually takes 03h 22m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Beaverdam is a useful midpoint, sitting about 84.4 miles from Dayton and 84.4 miles from Ottawa County.
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 32.1 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:14 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.83 one way or $45.65 round trip. Estimated CO2 is about 53 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Cloudy around Dayton and Chance Rain Showers near Ottawa County.
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 Dayton and Ottawa County. Straight-line distance: 136.8 mi (220.16 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Ottawa County
County in Ohio, United States
| Population | 40,253 |
| Coordinates | 41.4967500, -82.9412800 |
| Altitude | 174 |
| Country | United States |
End: Ottawa County (-82.94128, 41.49675)
Estimated Travel Time
Distance: 272 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 | $22.83 | $45.65 |
| Mid-grade | $4.38 | $26.12 | $52.25 |
| Premium | $4.93 | $29.36 | $58.73 |
| Diesel | $6.07 | $36.17 | $72.33 |
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