How far is Dayton, OH from Mount Vernon, OH?
The driving distance from Dayton, OH to Mount Vernon, OH is about 116.7 miles (187.8 km), with a travel time of about 02h 26m by car.
- The straight-line flight distance is about 100.3 miles (161.4 km).
- For a round trip, plan for roughly 04h 53m 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 26m.
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.
Census-designated place in Franklin County, Ohio
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Dayton and Mount Vernon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Mount Vernon.
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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
3.5 mi · 5 min · Johnstown Road
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21
Continue on Johnstown-Utica Road Northwest
3.2 mi · 4 min · Johnstown-Utica Road Northwest
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22
Continue on West Coshocton Street
1.8 mi · 2 min · West Coshocton Street
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23
Continue on Johnstown-Utica Road Northwest
9.9 mi · 11 min · Johnstown-Utica Road Northwest
-
24
Turn left onto North Street
2.7 mi · 5 min · North Street
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25
Continue on Granville Road
7.4 mi · 14 min · Granville Road
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26
Continue on South Main Street
1 mi · 3 min · South Main Street
-
27
Turn left onto Newark Road
119 m · 13 sec · Newark Road
-
28
Continue on South Main Street
1339 ft · 20 sec · South Main Street
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29
Turn right
1775 ft · 36 sec
-
30
Turn left onto East High Street
63 m · 6 sec · East High Street
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31
Enter the roundabout toward Public Square
681 ft · 24 sec · Public Square
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32
Arrive at your destination
0 m · 1 sec · Public Square
Car Route Details
A richer read on the saved driving route between Dayton and Mount Vernon.
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.
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms leaving Dayton and Showers And Thunderstorms Likely near Mount Vernon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Mount Vernon?
The road trip is about 116.7 miles (187.8 km) and usually takes 02h 26m 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?
Lake Darby is a useful midpoint, sitting about 58.3 miles from Dayton and 58.4 miles from Mount Vernon.
How much longer is the road route than the straight-line distance?
The direct path is about 100.3 miles (161.4 km), while the road route adds roughly 16.4 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 1:36 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.26 one way or $30.53 round trip. Estimated CO2 is about 36.6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Showers And Thunderstorms around Dayton and Showers And Thunderstorms Likely near Mount Vernon.
Stop Ideas Near Lake Darby
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
London City Hall
Columbus Mayor's Office
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lake Darby.
Columbus, OH
Flight Path Map
This map shows the direct air route between Dayton and Mount Vernon. Straight-line distance: 100.28 mi (161.38 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Mount Vernon
City in Knox County, Ohio, United States
| Population | 16,660 |
| Coordinates | 40.3934000, -82.4857200 |
| Altitude | 305 |
| Country | United States |
End: Mount Vernon (-82.48572, 40.3934)
Estimated Travel Time
Distance: 188 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 53m |
| 40 mph (64.37 km/h) | 02h 55m |
| 50 mph (80.47 km/h) | 02h 20m |
| 60 mph (96.56 km/h) | 01h 56m |
| 70 mph (112.65 km/h) | 01h 40m |
| 80 mph (129 km/h) | 01h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $15.26 | $30.53 |
| Mid-grade | $4.24 | $17.48 | $34.95 |
| Premium | $4.79 | $19.73 | $39.47 |
| Diesel | $4.30 | $17.73 | $35.46 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.