How far is Dayton, OH from Somerset, OH?
The driving distance from Dayton, OH to Somerset, OH is about 117.3 miles (188.8 km), with a travel time of about 02h 19m by car.
- The straight-line flight distance is about 100.7 miles (162 km).
- For a round trip, plan for roughly 04h 38m 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 19m.
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.
Driving Route Map
The map below follows the saved road route between Dayton and Somerset.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Somerset.
-
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
-
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
-
7
Keep slight right to continue on West Freeway
3.2 mi · 4 min · West Freeway
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8
Continue on South Innerbelt
1.5 mi · 2 min · South Innerbelt
-
9
Keep slight left to continue on South Innerbelt
2008 ft · 31 sec · South Innerbelt
-
10
Continue on East Freeway
31.6 mi · 36 min · East Freeway
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11
Take the exit slight right toward SR 13: Newark, Thornville
1716 ft · 37 sec
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12
Turn right onto Jacksontown Road
11.4 mi · 17 min · Jacksontown Road
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13
Continue on Somerset-Thornville Road
2.2 mi · 3 min · Somerset-Thornville Road
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14
Exit the roundabout onto South Columbus Street
149 m · 15 sec · South Columbus Street
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15
Turn left onto East Sheridan Avenue
149 m · 21 sec · East Sheridan Avenue
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16
Arrive at your destination
0 m · 1 sec · East Sheridan Avenue
Car Route Details
A richer read on the saved driving route between Dayton and Somerset.
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.
Mostly Sunny leaving Dayton and Sunny near Somerset.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Somerset?
The road trip is about 117.3 miles (188.8 km) and usually takes 02h 19m 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 58.5 miles from Dayton and 58.8 miles from Somerset.
How much longer is the road route than the straight-line distance?
The direct path is about 100.7 miles (162 km), while the road route adds roughly 16.6 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 1:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.34 one way or $30.68 round trip. Estimated CO2 is about 36.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Dayton and Sunny near Somerset.
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 Somerset. Straight-line distance: 100.64 mi (161.97 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Somerset
Village in Ohio, United States
| Population | 1,465 |
| Coordinates | 39.8070100, -82.2970900 |
| Altitude | 330 |
| Country | United States |
End: Somerset (-82.29709, 39.80701)
Estimated Travel Time
Distance: 189 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 54m |
| 40 mph (64.37 km/h) | 02h 55m |
| 50 mph (80.47 km/h) | 02h 20m |
| 60 mph (96.56 km/h) | 01h 57m |
| 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 | $15.34 | $30.68 |
| Mid-grade | $4.24 | $17.56 | $35.12 |
| Premium | $4.79 | $19.83 | $39.66 |
| Diesel | $4.30 | $17.82 | $35.64 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.