How far is Dayton, OH from Harlem, OH?
The driving distance from Dayton, OH to Harlem, OH is about 92 miles (148 km), with a travel time of about 01h 51m by car.
- The straight-line flight distance is about 76.6 miles (123.3 km).
- For a round trip, plan for roughly 03h 42m 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 51m.
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.
Village in Ohio, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Dayton and Harlem.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Harlem.
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1
Start on South Main Street
1.3 km · 2 min · South Main Street
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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 right to continue on SR 4 North: Springfield
1102 ft · 23 sec
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4
Merge slight left
10.4 mi · 13 min
-
5
Take the exit slight right toward US 70 East, SR 4 North: Columbus
5.8 mi · 7 min
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6
Keep slight left
49.2 mi · 53 min
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7
Keep slight left to continue on I 670 East: Airport
4.3 mi · 5 min
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8
Keep slight left to continue on I 670 East: Airport
6.1 mi · 7 min
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9
Keep slight left to continue on I 270 North, SR 161: Easton Way
108 m · 9 sec
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10
Keep slight left to continue on I 270 North
2707 ft · 1 min
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11
Merge slight left onto Jack Nicklaus Freeway
2.2 mi · 3 min · Jack Nicklaus Freeway
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12
Take the exit slight right toward Morse Road
1350 ft · 37 sec
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13
Turn right onto Morse Road
3.2 mi · 5 min · Morse Road
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14
Enter the roundabout and take exit 3 toward Johnstown Road
75 m · 4 sec · Johnstown Road
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15
Exit the roundabout onto Johnstown Road
1.1 mi · 1 min · Johnstown Road
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16
Enter the roundabout and take exit 2 toward Johnstown Road
34 m · 2 sec · Johnstown Road
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17
Exit the roundabout onto Johnstown Road
1.2 mi · 1 min · Johnstown Road
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18
Enter the roundabout and take exit 2 toward West Main Street
30 m · 1 sec · West Main Street
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19
Exit the roundabout onto West Main Street
1767 ft · 32 sec · West Main Street
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20
Turn left onto North High Street
1108 ft · 19 sec · North High Street
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21
Continue on New Albany - Condit Road
3 mi · 5 min · New Albany - Condit Road
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22
Continue on State Road 605
1577 ft · 25 sec · State Road 605
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23
Enter the roundabout and take exit 3 toward Fancher Road
76 m · 4 sec · Fancher Road
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24
Exit the roundabout onto Fancher Road
3136 ft · 1 min · Fancher Road
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25
Turn right onto Miller-Paul Road
1.3 mi · 2 min · Miller-Paul Road
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26
Turn left onto Gorsuch Road
1.1 km · 2 min · Gorsuch Road
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27
Arrive at your destination
0 m · 1 sec · Gorsuch Road
Car Route Details
A richer read on the saved driving route between Dayton and Harlem.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 70 East
Keep slight left
49.2 mi · 00h 53m
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 Mostly Sunny near Harlem.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Harlem?
The road trip is about 92 miles (148 km) and usually takes 01h 51m 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?
Lafayette is a useful midpoint, sitting about 45.9 miles from Dayton and 46 miles from Harlem.
How much longer is the road route than the straight-line distance?
The direct path is about 76.6 miles (123.3 km), while the road route adds roughly 15.4 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 2:48 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.04 one way or $24.08 round trip. Estimated CO2 is about 28.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Dayton and Mostly Sunny near Harlem.
Stop Ideas Near Lafayette
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
London City Hall
South Vienna Town Hall
Town Hall Emporium
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lafayette.
Columbus, OH
Flight Path Map
This map shows the direct air route between Dayton and Harlem. Straight-line distance: 76.59 mi (123.26 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Harlem
City in United States of America
| Population | 4,903 |
| Coordinates | 40.1517300, -82.8393400 |
| Altitude | 304 |
| Country | United States |
End: Harlem (-82.83934, 40.15173)
Estimated Travel Time
Distance: 148 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 03m |
| 40 mph (64.37 km/h) | 02h 17m |
| 50 mph (80.47 km/h) | 01h 50m |
| 60 mph (96.56 km/h) | 01h 31m |
| 70 mph (112.65 km/h) | 01h 18m |
| 80 mph (129 km/h) | 01h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $12.04 | $24.08 |
| Mid-grade | $4.24 | $13.79 | $27.57 |
| Premium | $4.79 | $15.57 | $31.14 |
| Diesel | $4.30 | $13.99 | $27.98 |
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.