How far is Saint Marys, OH from Cincinnati, OH?
The driving distance from Saint Marys, OH to Cincinnati, OH is about 119.9 miles (193 km), with a travel time of about 01h 58m by car.
- The straight-line flight distance is about 98 miles (157.7 km).
- For a round trip, plan for roughly 03h 57m 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 58m.
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.
City in Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Sunny
Driving Route Map
The map below follows the saved road route between Saint Marys and Cincinnati.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Marys and Cincinnati.
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1
Start on South Front Street
32 m · 9 sec · South Front Street
-
2
Turn right onto West Spring Street
1705 ft · 47 sec · West Spring Street
-
3
Turn left onto North Spruce Street
1.1 km · 1 min · North Spruce Street
-
4
Take the ramp slight right
1953 ft · 48 sec
-
5
Merge slight left
10.8 mi · 12 min
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6
Take the exit slight right toward I 75 South: Dayton
2159 ft · 53 sec
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7
Merge slight left
55.8 mi · 1 hr 1 min
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8
Merge slight left
47.8 mi · 57 min
-
9
Take the exit slight right toward Mitchell Avenue, Saint Bernard
885 ft · 22 sec
-
10
Keep slight left to continue on Saint Bernard, Xavier University, Veterans Affairs Medical Center, Zoo
76 m · 14 sec
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11
Turn left onto West Mitchell Avenue
1628 ft · 42 sec · West Mitchell Avenue
-
12
Turn slight right
60 m · 9 sec
-
13
Turn slight right onto Vine Street
1.9 mi · 4 min · Vine Street
-
14
Continue on Jefferson Avenue
2638 ft · 1 min · Jefferson Avenue
-
15
Turn slight right
103 m · 8 sec
-
16
Turn slight right onto Calhoun Street
865 ft · 34 sec · Calhoun Street
-
17
Turn left onto Ohio Avenue
104 m · 14 sec · Ohio Avenue
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18
Arrive at your destination
0 m · 1 sec · Ohio Avenue
Car Route Details
A richer read on the saved driving route between Saint Marys and Cincinnati.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 75 South
Merge slight left
55.8 mi · 01h 01m
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.
Chance Rain Showers leaving Saint Marys and Sunny near Cincinnati.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Marys to Cincinnati?
The road trip is about 119.9 miles (193 km) and usually takes 01h 58m 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?
Vandalia is a useful midpoint, sitting about 59.8 miles from Saint Marys and 60.1 miles from Cincinnati.
How much longer is the road route than the straight-line distance?
The direct path is about 98 miles (157.7 km), while the road route adds roughly 21.9 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 2:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.67 one way or $31.34 round trip. Estimated CO2 is about 37.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Saint Marys and Sunny near Cincinnati.
Stop Ideas Near Vandalia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Scene75 Entertainment Center | Dayton
City of Riverside Administration Offices
City Hall Gym
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Vandalia.
Connersville station
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
Columbus, OH
Flight Path Map
This map shows the direct air route between Saint Marys and Cincinnati. Straight-line distance: 98 mi (157.72 km).
#1 Saint Marys
City in Ohio, United States
| Population | 8,113 |
| Coordinates | 40.5422700, -84.3894000 |
| Altitude | 264 |
| Country | United States |
#2 Cincinnati
The third most populous city in Ohio and the center of the Cincinnati metropolitan area.
| Population | 304,548 |
| Coordinates | 39.1271100, -84.5143900 |
| Altitude | 191 |
| Country | United States |
End: (-84.514416, 39.127158)
Estimated Travel Time
Distance: 193 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 59m |
| 40 mph (64.37 km/h) | 02h 59m |
| 50 mph (80.47 km/h) | 02h 23m |
| 60 mph (96.56 km/h) | 01h 59m |
| 70 mph (112.65 km/h) | 01h 42m |
| 80 mph (129 km/h) | 01h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $15.67 | $31.34 |
| Mid-grade | $4.24 | $17.94 | $35.89 |
| Premium | $4.79 | $20.26 | $40.52 |
| Diesel | $4.30 | $18.21 | $36.41 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.