How far is Dayton, OH from Troy, OH?
The driving distance from Dayton, OH to Troy, OH is about 20.1 miles (32.4 km), with a travel time of about 00h 27m by car.
- The straight-line flight distance is about 19.4 miles (31.2 km).
- For a round trip, plan for roughly 00h 55m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 27m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Mostly Sunny then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Dayton and Troy.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Troy.
-
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 left to continue on I 75 North: Toledo
1458 ft · 36 sec
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4
Merge slight left
14.8 mi · 17 min
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5
Take the exit slight right toward I 75 Business: County Road 25A
1858 ft · 47 sec
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6
Turn right onto South County Road 25A
2.5 mi · 4 min · South County Road 25A
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7
Continue on South Market Street
1.4 mi · 3 min · South Market Street
-
8
Enter the roundabout toward Public Square
2 m · 1 sec · Public Square
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9
Arrive at your destination
0 m · 1 sec · Public Square
Car Route Details
A richer read on the saved driving route between Dayton and Troy.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 75 North
Merge slight left
14.8 mi · 00h 17m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny then Chance Showers And Thunderstorms leaving Dayton and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Troy.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Troy?
The road trip is about 20.1 miles (32.4 km) and usually takes 00h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Vandalia is a useful midpoint, sitting about 10.1 miles from Dayton and 10.1 miles from Troy.
How much longer is the road route than the straight-line distance?
The direct path is about 19.4 miles (31.2 km), while the road route adds roughly 0.7 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.63 one way or $5.26 round trip. Estimated CO2 is about 6.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Dayton and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Troy.
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 Dayton and Troy. Straight-line distance: 19.39 mi (31.21 km).
#1 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
#2 Troy
City in Miami County, Ohio, United States
| Population | 26,473 |
| Coordinates | 40.0395000, -84.2032800 |
| Altitude | 252 |
| Country | United States |
End: Troy (-84.20328, 40.0395)
Estimated Travel Time
Distance: 32 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 40m |
| 40 mph (64.37 km/h) | 00h 30m |
| 50 mph (80.47 km/h) | 00h 24m |
| 60 mph (96.56 km/h) | 00h 20m |
| 70 mph (112.65 km/h) | 00h 17m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $2.63 | $5.26 |
| Mid-grade | $4.24 | $3.01 | $6.02 |
| Premium | $4.79 | $3.40 | $6.80 |
| Diesel | $4.30 | $3.06 | $6.11 |
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 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.