The drive from Rock Hill, SC to Williston, SC covers 77.3 miles and takes about 1h 57m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Monticello Road, Whetstone Road, I 26 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 12.6 miles on Monticello Road.
At current regular gas prices, budget about $12.09 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
38.7 miles from Rock Hill, SC
A natural place for your longest stop of the day
, about 58m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 57m. Total distance: 77.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 57m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (47%). Some complex stretches to watch for.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
The drive from Rock Hill, SC to Williston, SC covers 77.3 miles and takes about 1h 57m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 24 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Monticello Road is the longest continuous segment at about 12.6 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 23.2 miles in.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 77.3 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 23.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 24.2 miles (I 26): Highway fork - watch signs carefully. Lane positioning matters here; at 31.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 10 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
7
23.2 mi into trip|~38m in
Take the exit toward I 26 East: Charleston
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the right lane.
Exit 64A
Toward I 26 East: Charleston
7
24.2 mi into trip|~40m in|I 26
Keep slight right at fork onto I 26 toward Charleston
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Charleston
8
31.3 mi into trip|~49m in
Take the exit toward US 21, US 176, US 321: Gaston, Cayce
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 115
Toward US 21, US 176, US 321: Gaston, Cayce
6
31.6 mi into trip|~50m in
Keep slight right at fork
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
4
58.6 mi into trip|~1h 26m in|SC 3
Enter roundabout onto SC 3
Roundabout - know your exit number before entering
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Rock Hill, SC and Williston, SC, road signs point toward Charleston and Cayce.
Charleston
24.2 mi in|~40m|via I 26
Cayce
31.3 mi in|~49m
Main Roads
Road
Distance
Duration
Monticello Road
12.6 mi
22m
Whetstone Road
11.5 mi
16m
I 26
7.8 mi
9m
Highway 39
6.9 mi
12m
SC 3
6.8 mi
9m
State Highway 215S
6.4 mi
11m
Springfield Road
5.1 mi
9m
Highway 321
4.8 mi
5m
Longest stretch:
Monticello Road
— 12.6 mi, about 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Hill, SC and Williston, SC.
1
Start on SC 215
6.4 mi·11 min·State Highway 215S
2
Continue on SC 215
13 mi·22 min·Monticello Road
3
Take the ramp
0.2 mi·31 sec
4
Merge onto I 20
4.0 mi·4 min·I 20
5
Take the exit
0.3 mi·40 sec
Exit 64AToward I 26 East: CharlestonUse the right lane.
6
Merge onto I 26; US 76
0.7 mi·55 sec·I 26; US 76
7
Keep slight right at fork onto I 26
7.1 mi·8 min·I 26
Toward CharlestonUse the straight / slight right lanes.
8
Take the exit
0.3 mi·40 sec
Exit 115Toward US 21, US 176, US 321: Gaston, CayceUse the straight / slight right lanes.
9
Keep slight right at fork
302 ft·7 sec
Use the slight right lane.
10
Merge onto US 21; US 176; US 321
2.7 mi·3 min·Charleston Highway
11
Turn slight right onto US 321
4.8 mi·5 min·Highway 321
12
Continue on US 321
2.1 mi·2 min·North Main Street
13
Continue on US 321
4.1 mi·5 min·Southbound Road
14
Continue on US 321
1.3 mi·2 min·North Church Street
15
Continue on US 321
0.2 mi·18 sec·Savannah Highway
16
Turn right onto SC 3
11 mi·16 min·Whetstone Road
17
Enter roundabout onto SC 3
151 ft·2 sec·SC 3
18
Continue on SC 3
0.7 mi·1 min·SC 3
19
Enter roundabout onto SC 3
132 ft·2 sec·SC 3
20
Continue on SC 3
6.0 mi·8 min·SC 3
21
Turn slight right onto SC 3 Business
3.7 mi·6 min·Springfield Road
22
Continue on SC 39
6.9 mi·12 min·Highway 39
23
Continue on SC 39
1.4 mi·2 min·Springfield Road
24
Arrive at destination
SC 39
Trip Plan
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.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 38.7 miles from Rock Hill, SC, or about 58m into the drive.
The longest continuous stretch on this route runs about 12.6 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 17 miles or 29m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 38.7 miles or 58m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 36m
Traffic, exits, and arrival timing usually matter more near Williston, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Rock Hill, SC so your first major turns are already loaded.
Day 1
Settle into the route from Rock Hill, SC
This is one driving day of about 77.3 miles and 1h 57m.
Your first comfortable stop window is around 17 miles from Rock Hill, SC.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Monticello Road for about 12.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 38.7 mi from Rock Hill, SC
· 58m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Congaree National Park
National Park
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...
19 mi from route
~48 min detour
Free
near mile 34.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$12.09 one way
$24.18 round trip
$3.97/gal25.4 MPG avg27 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$13.22
$26.43
premium
$4.70
$14.31
$28.61
diesel
$5.61
$17.07
$34.13
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 27 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
23.2
0
$8.12
$3.71
Efficient EV
19.3
0
$6.76
$3.09
EV Truck/SUV
30.9
0
$10.82
$4.95
Gas CO2
27 kg
EV CO2
9 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 Apr 15, 2026
Origin
Rock Hill, SC
Night
in Rock Hill on Friday
Local time
10:57 PM
EDT
Current temp
75°F
Unavailable
Live forecast
Destination
Williston, SC
Night
in Williston on Friday
Local time
10:57 PM
EDT
Current temp
77°F
Unavailable
Live forecast
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
2 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
1h 57m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Rock Hill, SC to Williston, SC covers 77.3 miles and takes about 1h 57m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Monticello Road, Whetstone Road, I 26. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 38.7 miles from Rock Hill, SC. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $12.09 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 77.3 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 23.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 24.2 miles (I 26): Highway fork - watch signs carefully. Lane positioning matters here; at 31.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Rock Hill, SC and Williston, SC, road signs point toward Charleston and Cayce.
Yes. Nearby national parks include Congaree National Park.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
