How far is Portsmouth, OH from Mentor, OH?
The driving distance from Portsmouth, OH to Mentor, OH is about 252.6 miles (406.5 km), with a travel time of about 04h 09m by car.
- The straight-line flight distance is about 220.8 miles (355.4 km).
- For a round trip, plan for roughly 08h 18m 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 04h 09m.
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.
Human settlement in Morrow County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Partly Sunny
Driving Route Map
The map below follows the saved road route between Portsmouth and Mentor.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Mentor.
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1
Start on the route
22 m · 8 sec
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2
Turn right
23 m · 11 sec
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3
Turn left onto 2nd Street
1.4 km · 2 min · 2nd Street
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4
Merge slight left onto Chillicothe Street
1660 ft · 27 sec · Chillicothe Street
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5
Continue on Scioto Trail
44.2 mi · 1 hr 2 min · Scioto Trail
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6
Keep slight right to continue on US 23 North: Columbus
34.5 mi · 45 min
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7
Continue on South High Street
2.6 mi · 4 min · South High Street
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8
Take the exit slight right toward I 270: Columbus, Wheeling
1391 ft · 26 sec
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9
Keep slight left to continue on I 270 West
1.1 km · 1 min
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10
Merge slight left onto Jack Nicklaus Freeway
1.3 mi · 1 min · Jack Nicklaus Freeway
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11
Take the exit slight right toward I 71: Cincinnati, Columbus
1415 ft · 35 sec
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12
Keep slight right to continue on I 71 North: Columbus
1.2 km · 2 min
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13
Merge slight left onto South Freeway
3.6 mi · 4 min · South Freeway
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14
Take the exit slight right toward I 71 North, I 70 East: Cleveland, Wheeling
2063 ft · 46 sec
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15
Merge slight left onto South Innerbelt
1.3 mi · 2 min · South Innerbelt
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16
Keep slight right to continue on I 71 North: Cleveland
1.6 km · 1 min
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17
Keep slight left
111.8 mi · 2 hr 1 min
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18
Keep slight right
25.4 mi · 28 min
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19
Keep slight left to continue on Outerbelt East Freeway
2.4 mi · 3 min · Outerbelt East Freeway
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20
Keep slight right to continue on Outerbelt East Freeway
12.6 mi · 16 min · Outerbelt East Freeway
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21
Continue on I 90
6.3 mi · 7 min · I 90
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22
Take the exit slight right toward SR 615: Center Street
1642 ft · 47 sec
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23
Turn left onto Center Street
1.4 mi · 3 min · Center Street
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24
Turn right
35 m · 8 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Portsmouth and Mentor.
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 71 North
Keep slight left
112 mi · 02h 01m
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.
Rain Showers Likely leaving Portsmouth and Partly Sunny near Mentor.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Mentor?
The road trip is about 252.6 miles (406.5 km) and usually takes 04h 09m 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?
Marengo is a useful midpoint, sitting about 126.1 miles from Portsmouth and 126.4 miles from Mentor.
How much longer is the road route than the straight-line distance?
The direct path is about 220.8 miles (355.4 km), while the road route adds roughly 31.8 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 8:42 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.13 one way or $68.25 round trip. Estimated CO2 is about 79.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Portsmouth and Partly Sunny near Mentor.
Stop Ideas Near Marengo
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 Marengo.
Columbus, OH
Sandusky
Flight Path Map
This map shows the direct air route between Portsmouth and Mentor. Straight-line distance: 220.82 mi (355.37 km).
#1 Portsmouth
City in Ohio
| Population | 19,744 |
| Coordinates | 38.7317400, -82.9976700 |
| Altitude | 162 |
| Country | United States |
#2 Mentor
A city in Lake County, Ohio.
| Population | 47,090 |
| Coordinates | 41.6661600, -81.3395500 |
| Altitude | 211 |
| Country | United States |
End: Center Street (-81.339958, 41.666166)
Estimated Travel Time
Distance: 406 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 24m |
| 40 mph (64.37 km/h) | 06h 18m |
| 50 mph (80.47 km/h) | 05h 03m |
| 60 mph (96.56 km/h) | 04h 12m |
| 70 mph (112.65 km/h) | 03h 36m |
| 80 mph (129 km/h) | 03h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.83 | $34.13 | $68.25 |
| Mid-grade | $4.38 | $39.05 | $78.11 |
| Premium | $4.93 | $43.90 | $87.80 |
| Diesel | $6.07 | $54.07 | $108.13 |
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 · Oct 15, 2026