Union, SC to Rock Hill, SC is 65.4 miles and takes about 1 hour 48 minutes via State Highway 200, with a fuel budget near $10 and enough daylight to finish in a day. This is a straightforward, same-day trip entirely within South Carolina, moving from the Southeast region to another part of the Southeast. The drive offers a mixed experience, providing a practical way to travel between these two points without extensive highway time. Consider this route if you're looking for a relatively short journey with a predictable duration and cost.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
32.7 miles from Union, SC
A natural place for your longest stop of the day
, about 51m into the drive
.
Main Roads
Road
Distance
Duration
State Highway 200
16.3 mi
28m
Monjicono Road
12.4 mi
21m
SC 200
11.6 mi
20m
Pageland Highway
7.4 mi
8m
US 321 Business
3.2 mi
4m
State Highway 215S
2.4 mi
4m
Monticous Road
2.3 mi
4m
Rocky River Road
2 mi
3m
Longest stretch:
State Highway 200
— 16.3 mi, about 28m
Turn-by-Turn Driving Directions
Step-by-step road directions between Union, SC and Rock Hill, SC.
1
Start on this road
225 ft·13 sec·this road
2
Turn sharp left
248 ft·7 sec
3
Enter roundabout
161 ft·3 sec
4
Continue
152 ft·3 sec
5
Turn straight onto SC 522
2.0 mi·3 min·Rocky River Road
6
Turn left onto SC 9
7.4 mi·8 min·Pageland Highway
7
Continue on SC 9
1.2 mi·2 min·East Arch Street
8
Turn left onto US 521 Business; SC 200
0.7 mi·1 min·South Market Street
9
Turn right onto SC 200
12 mi·20 min·SC 200
10
Continue on US 21
0.2 mi·17 sec·US 21
11
Keep slight left at fork onto US 21
1.2 mi·1 min·US 21
12
At end of road, turn left onto US 21; SC 200
2.0 mi·2 min·Chester Avenue
13
Continue on US 21; SC 200
0.9 mi·1 min·Ridgeway Road
14
Turn straight onto State Highway 200
16 mi·28 min·State Highway 200
15
Turn left onto US 321 Business
3.2 mi·4 min·US 321 Business
16
Continue on US 321 Business
450 ft·7 sec·Columbia Road
17
Continue on SC 213
12 mi·21 min·Monjicono Road
18
Continue on SC 213
0.6 mi·1 min·State Highway 213
19
At end of road, turn left onto SC 213; SC 215
1.9 mi·3 min·Monticous Road
20
Continue on SC 213; SC 215
0.8 mi·1 min·South State Highway 215
21
Continue on SC 215
0.4 mi·40 sec·Monticous Road
22
Keep slight left at fork onto SC 215
2.4 mi·4 min·State Highway 215S
23
Arrive at destination
SC 215
Trip Plan
Given the short duration of 1 hour 48 minutes, this trip offers plenty of flexibility. You can easily depart in the morning or afternoon and still arrive with ample daylight. With a fuel cost estimated at $10, planning for gas stops is minimal, but it’s always wise to start with a full tank. Keep an eye on your progress on State Highway 200, as it constitutes the longest continuous part of your drive and the primary roadway for much of the journey.
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 32.7 miles from Union, SC, or about 51m into the drive.
The longest continuous stretch on this route runs about 16.3 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 14 miles or 20m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 32.7 miles or 51m 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 31m
Traffic, exits, and arrival timing usually matter more near Rock Hill, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Union, SC so your first major turns are already loaded.
Day 1
Settle into the route from Union, SC
This is one driving day of about 65.4 miles and 1h 48m.
Your first comfortable stop window is around 14 miles from Union, SC.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on State Highway 200 for about 16.3 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 11
5 decision points cluster between mile 0 and 24.4 — 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
Turn sharp left
Sharp turn - reduce speed on approach
6
0.1 mi into trip|~0m in
Enter roundabout
Roundabout - know your exit number before entering
4
2.2 mi into trip|~4m in|SC 9 / Pageland Highway
Turn left onto SC 9 / Pageland Highway
Navigation decision point
4
23.2 mi into trip|~36m in|US 21
Keep slight left at fork onto US 21
Highway fork - watch signs carefully
4
24.4 mi into trip|~38m in|US 21; SC 200 / Chester Avenue
At end of road, turn left onto US 21; SC 200 / Chester Avenue
Navigation decision point
Fuel & Cost
Regular Gas
$10.23 one way
$20.45 round trip
$3.97/gal25.4 MPG avg23 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$11.18
$22.36
premium
$4.70
$12.10
$24.21
diesel
$5.61
$14.44
$28.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$10
Meals
$25–$50
Total
$35–$60
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 22.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $7 in charging
· 0 stops
· 65% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
19.6
0
$6.87
$3.14
Efficient EV
16.4
0
$5.72
$2.62
EV Truck/SUV
26.2
0
$9.16
$4.19
Gas CO2
23 kg
EV CO2
8 kg (65% 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
Union, SC
Morning
in Union on Sunday
Local time
6:12 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Destination
Rock Hill, SC
Morning
in Rock Hill on Sunday
Local time
6:12 AM
EDT
Current temp
75°F
Unavailable
Live forecast
87°F
Great Falls, SC
33 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
26 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 48m 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.
More Details
What kind of drive is this?
This drive features a mixed profile, with 55% of the journey on highways. You'll navigate State Highway 200 for a significant portion, including a continuous stretch of 16.3 miles on this road. Expect a blend of quicker travel segments and more local road driving as you make your way toward Rock Hill. The route gradually transitions, offering a varied driving experience rather than a monotonous interstate cruise.
55% highway, the rest on surface roads — varied driving throughout.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 16.3 mi on State Highway 200.
How Hard Is This Drive?
5/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 65.4 miles you will encounter 11 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: near the start: Sharp turn - reduce speed on approach; at 0.1 miles: Roundabout - know your exit number before entering; at 2.2 miles (SC 9 / Pageland Highway): Navigation decision point.
Rock Hill is a small city in the Olde English District of South Carolina approximately 25 miles (40 km) south of Charlotte and 70 miles (110 km) north of Columbia.
Rock Hill is essentially a commuter town and not on many tourists' radar, but does offer numerous outdoor activities and dining options.
Doable as a same-day drive at 1h 48m. Total distance: 65.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 48m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (55%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 16.3 miles on State Highway 200. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start: Sharp turn - reduce speed on approach; at 0.1 miles: Roundabout - know your exit number before entering; at 2.2 miles (SC 9 / Pageland Highway): Navigation decision point.
Yes. A round trip is manageable in a single day if you plan a break at Rock Hill, SC before heading back.
