How far is Hamilton, OH from Defiance, OH?
The driving distance from Hamilton, OH to Defiance, OH is about 145 miles (233.4 km), with a travel time of about 03h 16m by car.
- The straight-line flight distance is about 130.7 miles (210.3 km).
- For a round trip, plan for roughly 06h 33m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 16m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Village in Darke County, Ohio
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Hamilton and Defiance.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hamilton and Defiance.
-
1
Start on High Street
763 ft · 36 sec · High Street
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2
Turn left onto North Martin Luther King Junior Boulevard
2614 ft · 1 min · North Martin Luther King Junior Boulevard
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3
Continue on North 3rd Street
1.7 mi · 2 min · North 3rd Street
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4
Continue on South Riverside Drive
1.2 mi · 2 min · South Riverside Drive
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5
Continue on Hamilton Eaton Road
6.7 mi · 9 min · Hamilton Eaton Road
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6
Enter the roundabout and take exit 2 toward the route
48 m · 2 sec
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7
Exit the roundabout
98.9 mi · 2 hr 13 min
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8
Enter the roundabout and take exit 3 toward the route
65 m · 4 sec
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9
Exit the roundabout
16.6 mi · 23 min
-
10
Turn right onto North Williams Street
5.6 mi · 8 min · North Williams Street
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11
Take the ramp right
1707 ft · 47 sec
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12
Merge slight left
9.6 mi · 11 min
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13
Take the exit slight right toward Baltimore Street
1781 ft · 50 sec
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14
Turn left onto Baltimore Street
1.7 mi · 3 min · Baltimore Street
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15
Continue on Holgate Avenue
1.4 km · 2 min · Holgate Avenue
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16
Continue on West 3rd Street
1126 ft · 30 sec · West 3rd Street
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17
Turn left onto Clinton Street
115 m · 12 sec · Clinton Street
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18
Turn right onto West 2nd Street
1934 ft · 42 sec · West 2nd Street
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19
Turn left onto Auglaize Street
8 m · 1 sec · Auglaize Street
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20
Arrive at your destination
0 m · 1 sec · Auglaize Street
Car Route Details
A richer read on the saved driving route between Hamilton and Defiance.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Hamilton Eaton Road
Exit the roundabout
98.9 mi · 02h 13m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Hamilton and Partly Sunny near Defiance.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hamilton to Defiance?
The road trip is about 145 miles (233.4 km) and usually takes 03h 16m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
North Star is a useful midpoint, sitting about 72.6 miles from Hamilton and 72.5 miles from Defiance.
How much longer is the road route than the straight-line distance?
The direct path is about 130.7 miles (210.3 km), while the road route adds roughly 14.3 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:26 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.97 one way or $37.94 round trip. Estimated CO2 is about 45.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Hamilton and Partly Sunny near Defiance.
Stop Ideas Near North Star
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
The Inn at Versailles
Saint Marys Twp Hall
Beamsville Church
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Star.
Connersville station
Flight Path Map
This map shows the direct air route between Hamilton and Defiance. Straight-line distance: 130.69 mi (210.32 km).
#1 Hamilton
The most populous city in Butler County, Ohio.
| Population | 62,148 |
| Coordinates | 39.3995000, -84.5613400 |
| Altitude | 181 |
| Country | United States |
#2 Defiance
City in and the county seat of Defiance County, Ohio, United States
| Population | 16,482 |
| Coordinates | 41.2844900, -84.3557800 |
| Altitude | 206 |
| Country | United States |
End: Defiance (-84.35578, 41.28449)
Estimated Travel Time
Distance: 233 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 49m |
| 40 mph (64.37 km/h) | 03h 37m |
| 50 mph (80.47 km/h) | 02h 54m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 04m |
| 80 mph (129 km/h) | 01h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $18.97 | $37.94 |
| Mid-grade | $4.24 | $21.72 | $43.44 |
| Premium | $4.79 | $24.52 | $49.05 |
| Diesel | $4.30 | $22.04 | $44.07 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.