How far is Dayton, OH from Loudon, OH?
The driving distance from Dayton, OH to Loudon, OH is about 185 miles (297.7 km), with a travel time of about 03h 37m by car.
- The straight-line flight distance is about 152.7 miles (245.7 km).
- For a round trip, plan for roughly 07h 15m 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 37m.
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 United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Slight Chance Rain Showers
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Dayton and Loudon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Loudon.
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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
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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
1.1 km · 51 sec · West Main Street
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20
Continue on Johnstown Road
1434 ft · 26 sec · Johnstown Road
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21
Take the exit right
1654 ft · 41 sec
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22
Merge slight left onto New Albany Bypass
10.5 mi · 12 min · New Albany Bypass
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23
Continue straight
38.8 mi · 43 min
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24
Continue straight
8.9 mi · 12 min
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25
Continue straight
18.1 mi · 23 min
-
26
Take the exit slight right
1936 ft · 47 sec
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27
Merge slight left
19.4 mi · 21 min
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28
Take the exit slight right toward Schneiders Crossing Road, Dover
1291 ft · 34 sec
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29
Turn right onto West Ohio Avenue
2017 ft · 1 min · West Ohio Avenue
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30
Turn left onto North Wooster Avenue
1.1 mi · 2 min · North Wooster Avenue
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31
Continue on Columbia Road Northwest
1896 ft · 38 sec · Columbia Road Northwest
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32
Arrive at your destination
0 m · 1 sec · Columbia Road Northwest
Car Route Details
A richer read on the saved driving route between Dayton and Loudon.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
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 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.
Mostly Cloudy then Slight Chance Rain Showers leaving Dayton and Patchy Fog then Partly Sunny near Loudon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Loudon?
The road trip is about 185 miles (297.7 km) and usually takes 03h 37m 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?
Jersey is a useful midpoint, sitting about 92.3 miles from Dayton and 92.6 miles from Loudon.
How much longer is the road route than the straight-line distance?
The direct path is about 152.7 miles (245.7 km), while the road route adds roughly 32.3 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 9:44 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.19 one way or $48.39 round trip. Estimated CO2 is about 58 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Slight Chance Rain Showers around Dayton and Patchy Fog then Partly Sunny near Loudon.
Stop Ideas Near Jersey
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 Jersey.
Columbus, OH
Flight Path Map
This map shows the direct air route between Dayton and Loudon. Straight-line distance: 152.7 mi (245.75 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Loudon
Village in Ashland and Holmes counties in Ohio, United States
| Population | 2,040 |
| Coordinates | 40.5695100, -81.5009500 |
| Altitude | 278 |
| Country | United States |
End: Loudon (-81.50095, 40.56951)
Estimated Travel Time
Distance: 298 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 09m |
| 40 mph (64.37 km/h) | 04h 37m |
| 50 mph (80.47 km/h) | 03h 41m |
| 60 mph (96.56 km/h) | 03h 04m |
| 70 mph (112.65 km/h) | 02h 38m |
| 80 mph (129 km/h) | 02h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $24.19 | $48.39 |
| Mid-grade | $4.24 | $27.70 | $55.40 |
| Premium | $4.79 | $31.28 | $62.56 |
| Diesel | $4.30 | $28.11 | $56.21 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.