How far is Hamilton, OH from Portsmouth, OH?
The driving distance from Hamilton, OH to Portsmouth, OH is about 120.2 miles (193.5 km), with a travel time of about 02h 40m by car.
- The straight-line flight distance is about 95.8 miles (154.1 km).
- For a round trip, plan for roughly 05h 20m 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 02h 40m.
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 Brown County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Hamilton and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hamilton and Portsmouth.
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1
Start on High Street
1.6 mi · 3 min · High Street
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2
Continue on Butler County Veterans Highway
1.4 mi · 2 min · Butler County Veterans Highway
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3
Take the exit slight right toward SR 4 Bypass: Middletown, Fairfield
1473 ft · 40 sec
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4
Turn right onto Bypass 4
4.2 mi · 6 min · Bypass 4
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5
Take the exit right
159 m · 15 sec
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6
Turn left
57 m · 11 sec
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7
Turn left onto Dixie Highway
2.1 mi · 4 min · Dixie Highway
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8
Continue on Springfield Pike
961 ft · 21 sec · Springfield Pike
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9
Take the exit slight right toward I 275
861 ft · 21 sec
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10
Keep slight left to continue on I 275 East: Dayton
1494 ft · 36 sec
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11
Continue on I 275 East: Dayton
1260 ft · 31 sec
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12
Merge slight left onto Circle Freeway
21.7 mi · 25 min · Circle Freeway
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13
Take the exit slight right toward SR 32 West, SR 32 East: Batavia, Newtown, Eastgate Boulevard
961 ft · 24 sec
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14
Keep slight left to continue on SR 32 West: Newtown, Eastgate Boulevard
1056 ft · 28 sec
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15
Turn left onto James A. Rhodes Appalachian Highway
55.2 mi · 1 hr 9 min · James A. Rhodes Appalachian Highway
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16
Turn right
29.9 mi · 44 min
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17
Keep slight left
2908 ft · 55 sec
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18
Take the exit left
130 m · 12 sec
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19
Keep slight left
1.3 mi · 2 min
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20
Turn right onto Chillicothe Street
2846 ft · 1 min · Chillicothe Street
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21
Turn right onto 2nd Street
63 m · 9 sec · 2nd Street
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22
Turn right
23 m · 11 sec
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23
Turn left
22 m · 5 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Hamilton and Portsmouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
James A. Rhodes Appalachian Highway
Turn left onto James A. Rhodes Appalachian Highway
55.2 mi · 01h 09m
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 Hamilton and Chance Rain Showers near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hamilton to Portsmouth?
The road trip is about 120.2 miles (193.5 km) and usually takes 02h 40m 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?
Sardinia is a useful midpoint, sitting about 60.1 miles from Hamilton and 60.2 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 95.8 miles (154.1 km), while the road route adds roughly 24.4 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 1:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.71 one way or $31.42 round trip. Estimated CO2 is about 37.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Hamilton and Chance Rain Showers near Portsmouth.
Stop Ideas Near Sardinia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sardinia.
Maysville
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
South Portsmouth–South Shore station
Flight Path Map
This map shows the direct air route between Hamilton and Portsmouth. Straight-line distance: 95.73 mi (154.07 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 Portsmouth
City in Ohio
| Population | 19,744 |
| Coordinates | 38.7317400, -82.9976700 |
| Altitude | 162 |
| Country | United States |
End: Portsmouth (-82.99767, 38.73174)
Estimated Travel Time
Distance: 194 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 00m |
| 40 mph (64.37 km/h) | 03h 00m |
| 50 mph (80.47 km/h) | 02h 24m |
| 60 mph (96.56 km/h) | 02h 00m |
| 70 mph (112.65 km/h) | 01h 43m |
| 80 mph (129 km/h) | 01h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $15.71 | $31.42 |
| Mid-grade | $4.24 | $17.99 | $35.97 |
| Premium | $4.79 | $20.31 | $40.62 |
| Diesel | $4.30 | $18.25 | $36.50 |
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.