How far is Dayton, OH from Marion, OH?
The driving distance from Dayton, OH to Marion, OH is about 89.7 miles (144.3 km), with a travel time of about 01h 56m by car.
- The straight-line flight distance is about 80.2 miles (129.1 km).
- For a round trip, plan for roughly 03h 52m 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 56m.
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.
Human settlement in Champaign County, Ohio, United States of America
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 Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Marion.
-
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 right
6.3 mi · 7 min
-
7
Take the exit straight toward US 68 North: Urbana
1320 ft · 32 sec
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8
Merge slight left
4.7 mi · 5 min
-
9
Take the exit slight right toward SR 334 East: River Road, Springfield
1297 ft · 32 sec
-
10
Keep slight right to continue on SR 334 East
610 ft · 15 sec
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11
Merge slight left onto State Route 334
3.4 mi · 4 min · State Route 334
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12
At the end of the road, turn left onto Mechanicsburg Road
5.2 mi · 6 min · Mechanicsburg Road
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13
Continue on State Route 4
6.9 mi · 8 min · State Route 4
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14
Continue on West Sandusky Street
5.9 mi · 8 min · West Sandusky Street
-
15
Turn slight left
9.6 mi · 11 min
-
16
Keep slight right
2.5 mi · 3 min
-
17
Take the exit slight right toward SR 4 North: Marion
1215 ft · 30 sec
-
18
Keep slight right to continue on SR 4 North: Marion
26 mi · 38 min
-
19
Turn right onto West Walnut Street
1026 ft · 26 sec · West Walnut Street
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20
Turn left onto Delaware Avenue
94 m · 5 sec · Delaware Avenue
-
21
Turn straight onto South State Street
3200 ft · 2 min · South State Street
-
22
Turn left onto East Center Street
103 m · 6 sec · East Center Street
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23
Arrive at your destination
0 m · 1 sec · East Center Street
Car Route Details
A richer read on the saved driving route between Dayton and Marion.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
SR 4 North
Keep slight right to continue on SR 4 North: Marion
26 mi · 00h 38m
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 Sunny near Marion.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Marion?
The road trip is about 89.7 miles (144.3 km) and usually takes 01h 56m 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?
Mutual is a useful midpoint, sitting about 44.8 miles from Dayton and 44.9 miles from Marion.
How much longer is the road route than the straight-line distance?
The direct path is about 80.2 miles (129.1 km), while the road route adds roughly 9.5 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 2:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.71 one way or $23.42 round trip. Estimated CO2 is about 28.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Dayton and Sunny near Marion.
Stop Ideas Near Mutual
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 Mutual.
Columbus, OH
Flight Path Map
This map shows the direct air route between Dayton and Marion. Straight-line distance: 80.23 mi (129.11 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Marion
County seat of Marion County, Ohio, United States
| Population | 35,516 |
| Coordinates | 40.5886700, -83.1285200 |
| Altitude | 299 |
| Country | United States |
End: Marion (-83.12852, 40.58867)
Estimated Travel Time
Distance: 144 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 59m |
| 40 mph (64.37 km/h) | 02h 14m |
| 50 mph (80.47 km/h) | 01h 47m |
| 60 mph (96.56 km/h) | 01h 29m |
| 70 mph (112.65 km/h) | 01h 16m |
| 80 mph (129 km/h) | 01h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $11.71 | $23.42 |
| Mid-grade | $4.24 | $13.40 | $26.81 |
| Premium | $4.79 | $15.14 | $30.27 |
| Diesel | $4.30 | $13.60 | $27.20 |
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.