How far is West Lafayette, OH from Dayton, OH?
The driving distance from West Lafayette, OH to Dayton, OH is about 155 miles (249.5 km), with a travel time of about 02h 34m by car.
- The straight-line flight distance is about 134 miles (215.6 km).
- For a round trip, plan for roughly 05h 09m 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 34m.
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 Franklin County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Chance Rain Showers then Partly Sunny
Driving Route Map
The map below follows the saved road route between West Lafayette and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Lafayette and Dayton.
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1
Start on East Main Street
16 m · 3 sec · East Main Street
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2
Turn right onto Kirk Street
1.4 mi · 3 min · Kirk Street
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3
Turn left
7.4 mi · 10 min
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4
Continue straight
47.8 mi · 55 min
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5
Continue straight
10.5 mi · 12 min
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6
Take the exit slight right toward US 62: New Albany, Johnstown
1439 ft · 42 sec
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7
Turn left onto Johnstown Road
2214 ft · 40 sec · Johnstown Road
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8
Continue on East Main Street
1.1 km · 51 sec · East Main Street
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9
Enter the roundabout and take exit 2 toward Johnstown Road
31 m · 1 sec · Johnstown Road
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10
Exit the roundabout onto Johnstown Road
1.2 mi · 1 min · Johnstown Road
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11
Enter the roundabout and take exit 2 toward Johnstown Road
35 m · 2 sec · Johnstown Road
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12
Exit the roundabout onto Johnstown Road
1.1 mi · 1 min · Johnstown Road
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13
Enter the roundabout and take exit 2 toward East Johnstown Road
41 m · 2 sec · East Johnstown Road
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14
Exit the roundabout onto East Johnstown Road
2.8 mi · 6 min · East Johnstown Road
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15
Continue on Mill Street
2969 ft · 1 min · Mill Street
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16
At the end of the road, turn right onto Granville Street
7.3 mi · 9 min · Granville Street
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17
Keep slight right
4.5 mi · 6 min
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18
Merge slight right onto West Freeway
54.2 mi · 58 min · West Freeway
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19
Take the exit slight right toward SR 4, SR 235: Dayton, New Carlisle
1730 ft · 42 sec
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20
Keep slight left to continue on SR 4, SR 235 South: Dayton
11.1 mi · 14 min
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21
Take the exit slight right toward SR 48: Main Street, Grand Avenue
1108 ft · 29 sec
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22
Turn left onto North Main Street
1.4 km · 2 min · North Main Street
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23
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between West Lafayette and Dayton.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
West Freeway
Merge slight right onto West Freeway
54.2 mi · 00h 58m
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.
Slight Chance Rain Showers leaving West Lafayette and Chance Rain Showers then Partly Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Lafayette to Dayton?
The road trip is about 155 miles (249.5 km) and usually takes 02h 34m 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?
Gahanna is a useful midpoint, sitting about 76.2 miles from West Lafayette and 78.9 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 134 miles (215.6 km), while the road route adds roughly 21 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 1:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.27 one way or $40.53 round trip. Estimated CO2 is about 48.6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around West Lafayette and Chance Rain Showers then Partly Sunny near Dayton.
Stop Ideas Near Gahanna
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 Gahanna.
Columbus, OH
Flight Path Map
This map shows the direct air route between West Lafayette and Dayton. Straight-line distance: 133.98 mi (215.62 km).
#1 West Lafayette
Village in Ohio, USA
| Population | 2,301 |
| Coordinates | 40.2753500, -81.7509600 |
| Altitude | 245 |
| 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: 250 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 09m |
| 40 mph (64.37 km/h) | 03h 52m |
| 50 mph (80.47 km/h) | 03h 06m |
| 60 mph (96.56 km/h) | 02h 35m |
| 70 mph (112.65 km/h) | 02h 12m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $20.27 | $40.53 |
| Mid-grade | $4.24 | $23.20 | $46.41 |
| Premium | $4.79 | $26.20 | $52.40 |
| Diesel | $4.30 | $23.54 | $47.09 |
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 · May 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.