How far is Dayton, OH from Louisville, OH?
The driving distance from Dayton, OH to Louisville, OH is about 74.9 miles (120.5 km), with a travel time of about 01h 56m by car.
- The straight-line flight distance is about 65.7 miles (105.7 km).
- For a round trip, plan for roughly 03h 52m 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 01h 56m.
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 and the county seat of Clinton County, Iowa
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Dayton and Louisville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Louisville.
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1
Start on South Main Street
92 m · 12 sec · South Main Street
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2
Turn right onto West 4th Street
156 m · 18 sec · West 4th Street
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3
Turn left onto South Ludlow Street
2095 ft · 41 sec · South Ludlow Street
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4
Take the ramp straight toward US 35 East: Xenia
2382 ft · 58 sec
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5
Merge slight left
16.4 mi · 23 min
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6
Take the exit slight right toward US 68: Home Avenue, Wilmington
1437 ft · 38 sec
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7
Turn right
14.8 mi · 22 min
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8
Take the ramp left toward SR 73 East: Hillsboro
1451 ft · 36 sec
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9
Merge slight left onto Wilmington Bypass
14 mi · 18 min · Wilmington Bypass
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10
Continue on High Street
9.4 mi · 14 min · High Street
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11
Turn left onto West Main Street
710 ft · 16 sec · West Main Street
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12
Turn right onto South High Street
1925 ft · 42 sec · South High Street
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13
Turn left onto Muntz Street
711 ft · 14 sec · Muntz Street
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14
Turn slight right onto Belfast Pike
1.1 km · 1 min · Belfast Pike
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15
Continue on State Route 73
10 mi · 18 min · State Route 73
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16
Continue on State Route 73
2.7 mi · 5 min · State Route 73
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17
Turn right
1.9 mi · 3 min
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18
Turn left onto Louisville Road
2.8 mi · 7 min · Louisville Road
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19
Arrive at your destination
0 m · 1 sec · Louisville Road
Car Route Details
A richer read on the saved driving route between Dayton and Louisville.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
US 35 East
Merge slight left
16.4 mi · 00h 23m
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 Dayton and Chance Rain Showers near Louisville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Louisville?
The road trip is about 74.9 miles (120.5 km) and usually takes 01h 56m 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?
Clinton is a useful midpoint, sitting about 37.5 miles from Dayton and 37.5 miles from Louisville.
How much longer is the road route than the straight-line distance?
The direct path is about 65.7 miles (105.7 km), while the road route adds roughly 9.2 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 2:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.78 one way or $19.56 round trip. Estimated CO2 is about 23.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Dayton and Chance Rain Showers near Louisville.
Stop Ideas Near Clinton
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 Clinton.
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
Columbus, OH
Maysville
Flight Path Map
This map shows the direct air route between Dayton and Louisville. Straight-line distance: 65.65 mi (105.66 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Louisville
City in Stark County, Ohio
| Population | 9,378 |
| Coordinates | 38.9928500, -83.4643600 |
| Altitude | 278 |
| Country | United States |
End: Louisville (-83.46436, 38.99285)
Estimated Travel Time
Distance: 121 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 29m |
| 40 mph (64.37 km/h) | 01h 52m |
| 50 mph (80.47 km/h) | 01h 29m |
| 60 mph (96.56 km/h) | 01h 14m |
| 70 mph (112.65 km/h) | 01h 04m |
| 80 mph (129 km/h) | 00h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $9.78 | $19.56 |
| Mid-grade | $4.24 | $11.20 | $22.40 |
| Premium | $4.79 | $12.65 | $25.29 |
| Diesel | $4.30 | $11.36 | $22.73 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.