Charleston, SC to Winnsboro Mills, SC is 142.9 miles and takes about 2h 49m via I 26 and I 20, with a fuel budget near $24 and enough daylight to finish in a day. This drive stays within South Carolina, moving from the Southeast region to the same region. It's a straightforward trip that mainly uses major interstates, making it a practical choice for getting between these two points. You'll find it's a relatively quick and uncomplicated way to cover the distance, ideal if you're looking for an efficient drive.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
71.5 miles from Charleston, SC
A natural place for your longest stop of the day
, about 1h 21m into the drive
.
Main Roads
Road
Distance
Duration
I 26
112.9 mi
2h 4m
Winnsboro Road
16.5 mi
24m
I 20
5.4 mi
6m
Fairfield Road
4.2 mi
6m
Columbia Road
1 mi
1m
Meeting Street
0.7 mi
1m
Septima Clark Expressway
0.6 mi
1m
King Street
0.6 mi
1m
Longest stretch:
I 26
— 112.9 mi, about 2h 4m
Traffic on I-26
Hour-of-day weekday pattern from 55 FHWA count stations on your route.
Peak
3 PM
~3,050 veh/hr typical
· worst 3,551
Quietest
2 AM
~239 veh/hr
Peak-to-quiet ratio
12.8×
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 Charleston, SC and Winnsboro Mills, SC.
1
Start on Broad Street
40 ft·5 sec·Broad Street
2
Turn right onto S-10-107
0.7 mi·1 min·Meeting Street
Use the straight lane.
3
Turn left onto Calhoun Street
0.1 mi·15 sec·Calhoun Street
4
Turn right onto S-10-104
0.6 mi·1 min·King Street
5
Turn left onto Spring Street
0.2 mi·30 sec·Spring Street
6
Turn right onto Coming Street
0.2 mi·31 sec·Coming Street
7
Turn right onto US 17
0.6 mi·1 min·Septima Clark Expressway
8
Keep slight left at fork onto I 26
113 mi·2 hr 4 min·I 26
Use the straight / slight right lanes.
9
Take the exit
0.3 mi·28 sec
Exit 107BToward I 20 East: FlorenceUse the slight right lane.
10
Merge onto I 20
5.4 mi·6 min·I 20
11
Take the exit
0.1 mi·18 sec
Exit 70Toward US 321: Fairfield Road, WinnsboroUse the slight right lane.
12
Turn right onto US 321
4.2 mi·6 min·Fairfield Road
13
Continue on US 321
16 mi·24 min·Winnsboro Road
14
Turn right onto US 321 Business
260 ft·4 sec·State Highway 34
15
Continue on US 321 Business
1.0 mi·1 min·Columbia Road
16
Arrive at destination
US 321 Business
Trip Plan
For this 142.9-mile trip, leaving Charleston, SC in the morning will allow you to arrive in Winnsboro Mills, SC with plenty of daylight. Since the drive is under 3 hours, you likely won't need more than one brief stop, but feel free to pull over as needed. Keep an eye on your fuel, especially as you get closer to Winnsboro Mills; the estimated fuel cost is $24. The 83% highway share means you can maintain a steady pace, but be aware of the dense exits on I 26 as you depart Charleston.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 71.5 miles from Charleston, SC, or about 1h 21m into the drive.
The longest continuous stretch on this route runs about 112.9 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 31 miles or 36m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 71.5 miles or 1h 21m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 12m
Traffic, exits, and arrival timing usually matter more near Winnsboro Mills, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Charleston, 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 Charleston, SC
This is one driving day of about 142.9 miles and 2h 49m.
Your first comfortable stop window is around 31 miles from Charleston, 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 112.9 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 10
5 decision points cluster between mile 0 and 121 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in|S-10-107 / Meeting Street
Turn right onto S-10-107 / Meeting Street
Lane positioning matters here
Use the straight lane.
5
1.6 mi into trip|~3m in|Coming Street
Turn right onto Coming Street
Navigation decision point
6
2.4 mi into trip|~5m in|I 26
Keep slight left at fork onto I 26
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
115.3 mi into trip|~2h 9m in
Take the exit toward I 20 East: Florence
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 107B
Toward I 20 East: Florence
8
121 mi into trip|~2h 17m in
Take the exit toward US 321: Fairfield Road, Winnsboro
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 70
Toward US 321: Fairfield Road, Winnsboro
Fuel & Cost
Regular Gas
$22.73 one way
$45.46 round trip
$4.04/gal25.4 MPG avg50 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.41
$24.78
$49.56
premium
$4.78
$26.89
$53.77
diesel
$5.35
$30.10
$60.20
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$23
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 50 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $15 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
42.9
0
$15.00
$6.86
Efficient EV
35.7
0
$12.50
$5.72
EV Truck/SUV
57.2
0
$20.01
$9.15
Gas CO2
50 kg
EV CO2
17 kg (66% 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 Jun 2, 2026
Origin
Charleston, SC
Afternoon
in Charleston on Wednesday
Local time
4:51 PM
EDT
Current temp
79°F
Sunny
E 16 mph0% chanceLive forecast
Rip Current Statement
Rip Current Statement issued June 2 at 2:17PM EDT until June 3 at 8:00PM EDT by NWS Charleston SC
Beach Hazards Statement
Beach Hazards Statement issued June 2 at 2:46AM EDT until June 2 at 8:00PM EDT by NWS Wilmington NC
Destination
Winnsboro Mills, SC
Afternoon
in Winnsboro Mills on Wednesday
Local time
4:51 PM
EDT
Current temp
76°F
Partly Sunny
NE 7 mph9% chanceLive forecast
Rip Current Statement
Rip Current Statement issued June 2 at 2:17PM EDT until June 3 at 8:00PM EDT by NWS Charleston SC
Beach Hazards Statement
Beach Hazards Statement issued June 2 at 2:46AM EDT until June 2 at 8:00PM EDT by NWS Wilmington NC
67°F
Oak Grove, SC
71 mi in
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
3 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
2h 49m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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...
11 mi from route
~29 min detour
Free
near mile 88.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is 83% highway, meaning you'll spend most of your time on high-speed roads. The longest stretch without a significant change in road type is 112.9 miles, primarily on I 26. You'll notice a consistent flow of traffic and frequent exit ramps on the interstate portions. The transition to surface roads like Winnsboro Road will occur closer to your destination.
83% highway — fuel and pacing are the main things to plan.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 112.9 mi on I 26.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 26 and Winnsboro Road. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near S-10-107 / Meeting Street.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 2h 49m drive. You will face about 10 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (S-10-107 / Meeting Street): Lane positioning matters here; at 1.6 miles (Coming Street): Navigation decision point; at 2.4 miles (I 26): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
567 ft11 ft
Total Climb
659 ft
Total Descent
103 ft
Highest Point
567 ft
~142.9 mi in
Elevation Range
556 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Charleston, SC to Winnsboro Mills, SC, road signs begin pointing toward Winnsboro along the way.
Charleston is the largest and oldest city in the state of South Carolina in the United States of America. Its historic downtown is on a peninsula formed by two rivers, the Ashley and the Cooper, flowing into the Atlantic, and protected from the open ocean by surrounding islands. Charleston was captured in the American Civil War without much property damage, so the historic part of town has buildings that are hundreds of years old. The current downtown skyline, with practically no tall buildings due to the city's height restriction ordinance, is dominated by church steeples and the stunning Arthur Ravenel cable-stay bridge over the Cooper River. The city is a major port on the eastern seaboard of the U.S. and a popular destination for domestic and international tourists.
Top landmarks
•Fort Sumter — fort in Charleston, South Carolina
•College of Charleston — liberal arts college in Charleston, South Carolina, USA
•Emanuel African Methodist Episcopal Church — church in Charleston, South Carolina
The longest stretch is about 112.9 miles on I 26. The full list of main roads is in the Roads section above.
Yes — we found about 16 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.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: near the start (S-10-107 / Meeting Street): Lane positioning matters here; at 1.6 miles (Coming Street): Navigation decision point; at 2.4 miles (I 26): Highway fork - watch signs carefully. 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.
Yes. A round trip is manageable in a single day if you plan a break at Winnsboro Mills, SC before heading back.
