How far is Kettering, OH from Saint Marys, OH?
The driving distance from Kettering, OH to Saint Marys, OH is about 67.2 miles (108.2 km), with a travel time of about 01h 29m by car.
- The straight-line flight distance is about 60.1 miles (96.7 km).
- For a round trip, plan for roughly 02h 59m 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 29m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Kettering and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kettering and Saint Marys.
-
1
Start on West Stroop Road
16 m · 7 sec · West Stroop Road
-
2
Turn left onto Far Hills Avenue
3.4 mi · 6 min · Far Hills Avenue
-
3
Continue on South Main Street
1.2 mi · 2 min · South Main Street
-
4
Turn slight right onto South Patterson Boulevard
1257 ft · 28 sec · South Patterson Boulevard
-
5
Turn left onto South Jefferson Street
1.1 km · 1 min · South Jefferson Street
-
6
At the end of the road, turn left onto East Monument Avenue
146 m · 14 sec · East Monument Avenue
-
7
Turn right onto North Main Street
2358 ft · 50 sec · North Main Street
-
8
Take the ramp right toward I 75 North, SR 4 North: Toledo, Springfield
43 m · 3 sec
-
9
Keep slight left to continue on I 75 North: Toledo
1458 ft · 36 sec
-
10
Merge slight left
38.8 mi · 43 min
-
11
Take the exit slight right toward SR 29: Saint Marys, Sidney
1338 ft · 36 sec
-
12
Turn left onto Saint Marys Avenue
11.8 mi · 16 min · Saint Marys Avenue
-
13
Turn right
8.9 mi · 16 min
-
14
At the end of the road, turn left onto East Spring Street
1.2 mi · 2 min · East Spring Street
-
15
Turn left onto South Front Street
32 m · 5 sec · South Front Street
-
16
Arrive at your destination
0 m · 1 sec · South Front Street
Car Route Details
A richer read on the saved driving route between Kettering and Saint Marys.
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 North
Merge slight left
38.8 mi · 00h 43m
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 Kettering and Chance Rain Showers near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kettering to Saint Marys?
The road trip is about 67.2 miles (108.2 km) and usually takes 01h 29m 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?
Piqua is a useful midpoint, sitting about 33.7 miles from Kettering and 33.6 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 60.1 miles (96.7 km), while the road route adds roughly 7.1 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 3:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.78 one way or $17.56 round trip. Estimated CO2 is about 21.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Kettering and Chance Rain Showers near Saint Marys.
Stop Ideas Near Piqua
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
B & D Pizza & Subs
The Inn at Versailles
Tecumseh Trail Gettysburg, OH
Tipp City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Piqua.
Connersville station
Columbus, OH
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
Flight Path Map
This map shows the direct air route between Kettering and Saint Marys. Straight-line distance: 60.06 mi (96.66 km).
#1 Kettering
The most populous city in Montgomery County, Ohio.
| Population | 54,313 |
| Coordinates | 39.6895000, -84.1688300 |
| Altitude | 307 |
| Country | United States |
#2 Saint Marys
City in Ohio, United States
| Population | 8,113 |
| Coordinates | 40.5422700, -84.3894000 |
| Altitude | 264 |
| Country | United States |
End: Saint Marys (-84.3894, 40.54227)
Estimated Travel Time
Distance: 108 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 14m |
| 40 mph (64.37 km/h) | 01h 40m |
| 50 mph (80.47 km/h) | 01h 20m |
| 60 mph (96.56 km/h) | 01h 07m |
| 70 mph (112.65 km/h) | 00h 57m |
| 80 mph (129 km/h) | 00h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $8.78 | $17.56 |
| Mid-grade | $4.24 | $10.05 | $20.11 |
| Premium | $4.79 | $11.35 | $22.70 |
| Diesel | $4.30 | $10.20 | $20.40 |
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.