Colerain, OH to Portsmouth, OH is 208.7 miles and takes about 4h 22m via I 70 and US 23, with a fuel budget near $40 and enough daylight to finish in a day. This trip stays within Ohio, moving from the Midwest region to another part of the Midwest. It's a straightforward drive, suitable for a single day, and should feel familiar to anyone who has driven in the region. Plan for a mostly highway experience that should be easy to navigate.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
104.4 miles from Colerain, OH
A natural place for your longest stop of the day
, about 2h 2m into the drive
.
Main Roads
Road
Distance
Duration
I 70
105.6 mi
1h 54m
US 23
42.6 mi
1h
Portsmouth - Columbus Road
36.5 mi
47m
Jack Nicklaus Freeway
8.9 mi
10m
Barton Road
3.6 mi
8m
South High Street
3.1 mi
4m
Barton Colerain Road
2.3 mi
5m
East Main Street
1.5 mi
2m
Longest stretch:
I 70
— 105.6 mi, about 1h 54m
Traffic on I-70
Hour-of-day weekday pattern from 33 FHWA count stations on your route.
Peak
4 PM
~1,619 veh/hr typical
· worst 1,943
Quietest
2 AM
~203 veh/hr
Peak-to-quiet ratio
8×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Colerain, OH and Portsmouth, OH.
1
Start on US 250
0.8 mi·1 min·Colerain Road
2
Turn left onto Barton Colerain Road
2.3 mi·5 min·Barton Colerain Road
3
Turn left onto Barton Road
381 ft·12 sec·Barton Road
4
At end of road, turn right onto Main Street
0.1 mi·20 sec·Main Street
5
Continue on Barton Road
3.5 mi·8 min·Barton Road
6
At end of road, turn right onto US 40
1.5 mi·2 min·East Main Street
7
Continue on US 40
0.7 mi·1 min·National Road West
8
Take the ramp
0.3 mi·39 sec
9
Merge onto I 70
106 mi·1 hr 54 min·I 70
Use the straight / slight right lanes.
10
Take the exit
0.2 mi·27 sec
Exit 108Toward I 270 South, I 270 NorthUse the slight right lane.
11
Keep slight left at fork
0.4 mi·45 sec
Toward I 270 SouthUse the slight left lane.
12
Keep slight right at fork
0.9 mi·1 min
Toward I 270 SouthUse the right lane.
13
Merge onto I 270
8.9 mi·10 min·Jack Nicklaus Freeway
Use the straight lane.
14
Take the exit
0.4 mi·45 sec
Exit 52AToward US 23 North: High StreetUse the slight right lane.
15
Turn left onto US 23
3.1 mi·4 min·South High Street
16
Continue on US 23
37 mi·47 min·Portsmouth - Columbus Road
Use the straight lane.
17
Keep slight right at fork onto US 23
43 mi·1 hr·US 23
Use the straight / right lanes.
18
Keep slight left at fork onto US 23
0.6 mi·1 min·Chillicothe Street
Use the straight / left lanes.
19
Turn right onto US 23; SR 73; SR 104
208 ft·9 sec·2nd Street
20
Turn right
74 ft·11 sec
21
Turn left
73 ft·5 sec
22
Arrive at destination
Trip Plan
Given the 4-hour drive time, leaving in the morning from Colerain is ideal, allowing you to reach Portsmouth with plenty of daylight. The $40 fuel cost is a good estimate, but it's always wise to check current prices. With only one recommended stop and a mostly highway profile, you can be flexible with your timing. Pay attention to your fuel gauge, especially after leaving I 70, as services might be less frequent on US 23.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 104.4 miles from Colerain, OH, or about 2h 2m into the drive.
The longest continuous stretch on this route runs about 105.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 46 miles or 59m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 104.4 miles or 2h 2m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 28m
Traffic, exits, and arrival timing usually matter more near Portsmouth, OH than in the middle of the route.
Before You Leave
+
Open the route before leaving Colerain, OH so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Colerain, OH
This is one driving day of about 208.7 miles and 4h 22m.
Your first comfortable stop window is around 46 miles from Colerain, OH.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 70 for about 105.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 15
5 decision points cluster between mile 115 and 165.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
115 mi into trip|~2h 14m in
Take the exit toward I 270 South, I 270 North
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 108
Toward I 270 South, I 270 North
7
115.2 mi into trip|~2h 14m in
Keep slight left at fork toward I 270 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 270 South
7
115.6 mi into trip|~2h 15m in
Keep slight right at fork toward I 270 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the right lane.
Toward I 270 South
7
125.4 mi into trip|~2h 27m in
Take the exit toward US 23 North: High Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 52A
Toward US 23 North: High Street
6
165.4 mi into trip|~3h 19m in|US 23
Keep slight right at fork onto US 23
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / right lanes.
Fuel & Cost
Regular Gas
$32.07 one way
$64.14 round trip
$3.90/gal25.4 MPG avg73 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.40
$36.17
$72.34
premium
$4.99
$40.98
$81.95
diesel
$4.80
$39.41
$78.81
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$32
Meals
$25–$50
Total
$57–$82
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 73 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $22 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
62.6
0
$21.91
$10.02
Efficient EV
52.2
0
$18.26
$8.35
EV Truck/SUV
83.5
1
$29.22
$13.36
Gas CO2
73 kg
EV CO2
24 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 17, 2026
Origin
Colerain, OH
Morning
in Colerain on Sunday
Local time
7:04 AM
EDT
Current temp
86°F
Smoke
N 2 to 6 mph0% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 10:04AM EDT by NWS Northern Indiana
Destination
Portsmouth, OH
Morning
in Portsmouth on Sunday
Local time
7:04 AM
EDT
Current temp
94°F
Chance Showers And Thunderstorms
SW 3 mph45% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 10:04AM EDT by NWS Northern Indiana
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
8 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 22m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Hopewell Culture National Historical Park
National Historical Park
Nearly 2000 years ago, Native Americans built dozens of monumental mounds and earthen enclosures in southern Ohio. These earthwork complexes were ceremonial landscapes used for feasts, funerals, ritua...
8 mi from route
~19 min detour
Free
near mile 165.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend about 75% of the 208.7 miles on highways, with the longest uninterrupted stretch being 105.6 miles on I 70. The transition to surface roads will happen as you approach Portsmouth. Expect a more rural cruising feel once you leave the interstate environment.
75% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 105.6 mi on I 70.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 70 and US 23. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 115 miles in.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 208.7 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 115 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 115.2 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 115.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Portsmouth is a city in Southwest Ohio, it is the county seat of Scioto County. Portsmouth is full of history so take time to visit the antique shops, cafes and pubs in the Bonneyfiddle District. One of the main attractions in Portsmouth is the 2,200-foot floodwall mural painted by famed artist Robert Dafford. It is truly amazing and unique.
Top landmarks
•All Saints Episcopal Church — historic church building in Portsmouth, Ohio
•Boneyfiddle Commercial District — historic district in Ohio, United States
Doable as a same-day drive at 4h 22m. Total distance: 208.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 22m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (75%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 105.6 miles on I 70. The full list of main roads is in the Roads section above.
Yes — we found about 19 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Portsmouth, OH before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 19 rest areas along the route for bathroom stops.
The main spots that need attention: at 115 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 115.2 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 115.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Hopewell Culture National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.4 hours each way, an in-and-out day trip would put you behind the wheel for 8.8 hours — manageable with a long break at Portsmouth, OH, but most travelers stay overnight.
