Mount Pleasant to Dunean is 221 miles and takes about 4 hours 7 minutes via I 26 and I 385, with a fuel budget near $35 and enough daylight to finish in a day. This trip stays within South Carolina, connecting two areas in the Southeast region. It's a straightforward drive, mostly on major interstates, making it a convenient option for a single-day excursion. If you're looking for a no-fuss trip with minimal navigation challenges, this route is a solid choice.
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
110.5 miles from Mount Pleasant, SC
A natural place for your longest stop of the day
, about 2h 4m into the drive
.
Main Roads
Road
Distance
Duration
I 26
158.7 mi
2h 53m
I 385
29.6 mi
32m
Southern Connector
15.9 mi
18m
Mark Clark Expressway
12 mi
14m
Chuck Dawley Boulevard
1.3 mi
2m
Rivers Avenue
1.1 mi
1m
US 276
0.5 mi
<1m
Stevens Street
0.2 mi
<1m
Longest stretch:
I 26
— 158.7 mi, about 2h 53m
Traffic on I-26
Hour-of-day weekday pattern from 142 FHWA count stations on your route.
Peak
3 PM
~2,705 veh/hr typical
· worst 3,369
Quietest
2 AM
~220 veh/hr
Peak-to-quiet ratio
12.3×
busier at peak than in the quiet hours
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Averaged across 105 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 Mount Pleasant, SC and Dunean, SC.
1
Start on this road
76 ft·10 sec·this road
2
Turn right onto SC 703
237 ft·9 sec·Coleman Boulevard
3
Turn left onto I 526 Bus
1.3 mi·2 min·Chuck Dawley Boulevard
4
Turn straight onto I 526
12 mi·14 min·Mark Clark Expressway
Toward North CharlestonUse the straight / slight right lanes.
5
Take the exit
0.2 mi·31 sec
Exit 18BToward US 52 West, US 78 West: Rivers AvenueUse the slight right lane.
6
Turn slight right onto US 52; US 78
1.1 mi·1 min·Rivers Avenue
Use the straight lane.
7
Turn straight
0.1 mi·20 sec
8
Take the ramp
0.5 mi·45 sec
Toward I 26 North: Columbia
9
Merge onto I 26
159 mi·2 hr 53 min·I 26
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 385
30 mi·32 min·I 385
Exit 51Toward I 385 North: Laurens, GreenvilleUse the slight left / straight lanes.
11
Keep slight right at fork onto US 276
0.5 mi·33 sec·US 276
Toward I 185, US 276: Atlanta, Mauldin, Anderson
12
Take the exit
0.6 mi·1 min
Toward I 185: Atlanta, Anderson
13
Merge onto I 185
16 mi·18 min·Southern Connector
Use the straight / slight right lanes.
14
Turn left onto Henrydale Avenue
384 ft·14 sec·Henrydale Avenue
Use the left lane.
15
Continue on Stevens Street
0.2 mi·37 sec·Stevens Street
16
Turn right onto Duke & Blake Street Alley
166 ft·12 sec·Duke & Blake Street Alley
17
Arrive at destination
Duke & Blake Street Alley
Trip Plan
For this 4-hour drive, leaving in the morning is recommended to give you flexibility. Since it's a single-day trip, you'll have about 158.7 miles on I 26 before needing to consider a stop. Keep an eye on your fuel gauge, as the estimated cost is $35. While there's only one recommended stop, you can easily adjust your timing based on traffic or your own needs. The route is predominantly highway, so plan for potential slowdowns around urban areas, particularly as you get closer to Dunean.
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 110.5 miles from Mount Pleasant, SC, or about 2h 4m into the drive.
The longest continuous stretch on this route runs about 158.7 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 49 miles or 57m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 110.5 miles or 2h 4m 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 21m
Traffic, exits, and arrival timing usually matter more near Dunean, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Mount Pleasant, SC 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 Mount Pleasant, SC
This is one driving day of about 221 miles and 4h 7m.
Your first comfortable stop window is around 49 miles from Mount Pleasant, SC.
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 26 for about 158.7 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 13
5 decision points cluster between mile 0 and 203.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|SC 703 / Coleman Boulevard
Turn right onto SC 703 / Coleman Boulevard
Navigation decision point
8
13.3 mi into trip|~17m in
Take the exit toward US 52 West, US 78 West: Rivers Avenue
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 18B
Toward US 52 West, US 78 West: Rivers Avenue
5
15.3 mi into trip|~20m in|I 26
Merge onto I 26
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
9
174 mi into trip|~3h 14m in|I 385
Keep slight left at fork onto I 385 toward I 385 North: Laurens, Greenville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / straight lanes.
Exit 51
Toward I 385 North: Laurens, Greenville
6
203.6 mi into trip|~3h 46m in|US 276
Keep slight right at fork onto US 276 toward I 185, US 276: Atlanta, Mauldin, Anderson
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 185, US 276: Atlanta, Mauldin, Anderso...
Fuel & Cost
Regular Gas
$35.11 one way
$70.22 round trip
$4.04/gal25.4 MPG avg77 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.40
$38.28
$76.57
premium
$4.78
$41.59
$83.18
diesel
$6.18
$53.76
$107.52
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 77.3 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $23 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
66.3
0
$23.21
$10.61
Efficient EV
55.3
0
$19.34
$8.84
EV Truck/SUV
88.4
1
$30.94
$14.14
Gas CO2
77 kg
EV CO2
26 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 Oct 18, 2026
Origin
Mount Pleasant, SC
Morning
in Mount Pleasant on Monday
Local time
8:10 AM
EDT
Current temp
68°F
Sunny
N 15 to 20 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued October 18 at 3:00AM EDT until October 18 at 8:00PM EDT by NWS Wilmington NC
Lake Wind Advisory
Lake Wind Advisory issued October 18 at 2:14AM EDT until October 19 at 2:00AM EDT by NWS Charleston SC
Destination
Dunean, SC
Morning
in Dunean on Monday
Local time
8:10 AM
EDT
Current temp
63°F
Sunny
NE 10 to 16 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued October 18 at 3:00AM EDT until October 18 at 8:00PM EDT by NWS Wilmington NC
Lake Wind Advisory
Lake Wind Advisory issued October 18 at 2:14AM EDT until October 19 at 2:00AM EDT by NWS Charleston SC
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
5 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 7m 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.
Fort Sumter and Fort Moultrie National Historical Park
National Historical Park
Two forts stand at the entrance of Charleston Harbor. Patriots inside a palmetto log fort, later named Fort Moultrie, defeated the Royal Navy in 1776. As Charleston blazed a path towards secession to...
Astonishing biodiversity exists in Congaree National Park, the largest intact expanse of old growth bottomland hardwood forest remaining in the southeastern United States. Waters from the Congaree and...
12 mi from route
~29 min detour
Free
near mile 91.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll be on the highway for about 91% of this 221-mile drive. The longest continuous stretch is 158.7 miles on I 26. The transition to surface roads will occur towards the end of your trip, around the 62-mile mark before reaching Dunean. Expect a lot of merging and exiting as you navigate through various towns and cities along the way, especially as you approach your destination.
91% highway — fuel and pacing are the main things to plan.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 158.7 mi on I 26.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 26 and I 385. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near SC 703 / Coleman Boulevard.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 13 significant decision points across 221 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: near the start (SC 703 / Coleman Boulevard): Navigation decision point; at 13.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 15.3 miles (I 26): Merge point - match speed before joining. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
979 ft21 ft
Total Climb
1,021 ft
Total Descent
63 ft
Highest Point
979 ft
~221 mi in
Elevation Range
958 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Mount Pleasant, SC and Dunean, SC, road signs point toward Greenville, Mauldin and Anderson.
Mount Pleasant is a large town in the Greater Charleston region of South Carolina. The population of the town has exploded, making it a very popular bedroom community of the city of Charleston.
Top landmarks
•USS Yorktown — 1943 Essex-class aircraft carrier
•USS Laffey — 1943 Allen M. Sumner-class destroyer
•Charles Pinckney National Historic Site — human settlement in Mount Pleasant, South Carolina, United States of America
Doable as a same-day drive at 4h 7m. Total distance: 221 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 7m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 158.7 miles on I 26. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 Dunean, SC 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start (SC 703 / Coleman Boulevard): Navigation decision point; at 13.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 15.3 miles (I 26): Merge point - match speed before joining. Lane positioning matters here.
Yes — Fort Sumter and Fort Moultrie National Historical Park and Congaree National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.1 hours each way, an in-and-out day trip would put you behind the wheel for 8.3 hours — manageable with a long break at Dunean, SC, but most travelers stay overnight.
