This 188.2-mile drive from Gaffney, SC to Summerville, SC is a straightforward, single-day trip, taking approximately 3 hours and 46 minutes. With a highway share of 71%, you'll spend most of your time on major roads like I-26 and Whitmire/Union Highways. The estimated fuel cost for this journey is around $29, making it an economical option. Given its duration and focus on efficient travel, this route is perfectly suited for a day trip without the need for an overnight stop. You'll be traveling within the Southeast region of the US for the entirety of your journey.
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
94.1 miles from Gaffney, SC
A natural place for your longest stop of the day
, about 2h 1m into the drive
.
Main Roads
Road
Distance
Duration
I 26
127.1 mi
2h 19m
Whitmire Highway
15.2 mi
17m
Union Highway
12.6 mi
18m
Watson Street
7.4 mi
10m
Jonesville Highway
6.8 mi
9m
State Highway 121
6.1 mi
9m
Gaffney Highway
3.8 mi
5m
North Main Street
2 mi
3m
Longest stretch:
I 26
— 127.1 mi, about 2h 19m
Turn-by-Turn Driving Directions
Step-by-step road directions between Gaffney, SC and Summerville, SC.
1
Start on SC 150
111 ft·6 sec·South Limestone Street
2
Turn right onto East Buford Street
0.5 mi·1 min·East Buford Street
3
Turn right onto SC 18
1.6 mi·2 min·East Frederick Street
4
Continue on SC 18
13 mi·18 min·Union Highway
5
Continue on SC 18
3.8 mi·5 min·Gaffney Highway
6
Continue on SC 18
0.7 mi·1 min·Pacolet Street
7
At end of road, turn left onto SC 9; SC 18
0.4 mi·29 sec·South Main Street
8
Continue on SC 9; SC 18
0.6 mi·41 sec·Jonesville Highway
9
Keep slight right at fork onto SC 9; SC 18
141 ft·1 sec·Jonesville Highway
10
Continue on SC 18
6.2 mi·9 min·Jonesville Highway
11
Continue on SC 18
1.9 mi·2 min·Thompson Boulevard
12
Continue on SC 18
1.5 mi·2 min·North Pinckney Street
13
Continue on US 176
15 mi·17 min·Whitmire Highway
14
Turn slight left onto US 176; SC 121
7.4 mi·10 min·Watson Street
Use the slight left lane.
15
Keep slight right at fork onto SC 121
6.1 mi·9 min·State Highway 121
16
Take the ramp
0.2 mi·28 sec
17
Merge onto I 26
36 mi·40 min·I 26
Use the straight / slight right lanes.
18
Keep slight right at fork onto I 26
91 mi·1 hr 39 min·I 26
Toward CharlestonUse the straight / slight right lanes.
19
Take the exit
0.3 mi·35 sec
Exit 199AToward US 17 Alternate South: SummervilleUse the slight right lane.
20
Turn straight onto US 17 Alternate
2.0 mi·3 min·North Main Street
Use the straight / right lanes.
21
Turn left onto East Richardson Avenue
116 ft·5 sec·East Richardson Avenue
Use the left lane.
22
Turn right
92 ft·6 sec
23
Arrive at destination
Trip Plan
For this 3 hour and 46 minute drive, departing early in the morning can help you avoid potential traffic as you get closer to Summerville. With only one recommended stop, you have flexibility in pacing your journey. Keep an eye on your fuel levels, especially during the 127.1-mile stretch on I-26, as services might be more spread out. The estimated fuel cost of $29 is a good budget baseline. Consider breaking up the longest stretch on I-26 with a brief stop for stretching or a snack.
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 94.1 miles from Gaffney, SC, or about 2h 1m into the drive.
The longest continuous stretch on this route runs about 127.1 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 41 miles or 57m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 94.1 miles or 2h 1m 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 7m
Traffic, exits, and arrival timing usually matter more near Summerville, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Gaffney, 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 Gaffney, SC
This is one driving day of about 188.2 miles and 3h 46m.
Your first comfortable stop window is around 41 miles from Gaffney, 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 127.1 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 12
5 decision points cluster between mile 19.3 and 188.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
19.3 mi into trip|~29m in|SC 9; SC 18 / South Main Street
At end of road, turn left onto SC 9; SC 18 / South Main Street
Navigation decision point
5
58.8 mi into trip|~1h 22m in|I 26
Merge onto I 26
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
95 mi into trip|~2h 2m 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
7
185.9 mi into trip|~3h 42m in
Take the exit toward US 17 Alternate South: Summerville
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 199A
Toward US 17 Alternate South: Summerville
5
188.2 mi into trip|~3h 46m in|East Richardson Avenue
Turn left onto East Richardson Avenue
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$29.43 one way
$58.86 round trip
$3.97/gal25.4 MPG avg66 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$32.18
$64.36
premium
$4.70
$34.83
$69.66
diesel
$5.61
$41.55
$83.10
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$29
Meals
$25–$50
Total
$54–$79
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 65.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $20 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
56.5
0
$19.76
$9.03
Efficient EV
47.1
0
$16.47
$7.53
EV Truck/SUV
75.3
0
$26.35
$12.04
Gas CO2
66 kg
EV CO2
22 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
Gaffney, SC
Late night
in Gaffney on Sunday
Local time
4:01 AM
EDT
Current temp
74°F
Unavailable
Live forecast
Destination
Summerville, SC
Late night
in Summerville on Sunday
Local time
4:01 AM
EDT
Current temp
87°F
Unavailable
Live forecast
75°F
Rock Hill, SC
94 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
13 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
3h 46m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Cowpens National Battlefield
National Battlefield
A pasturing area at the time of the battle, this Revolutionary War site commemorates the place where Daniel Morgan and his army turned the flanks of Banastre Tarleton's British army. This classic mili...
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
~30 min detour
Free
near mile 123.3
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...
25 mi from route
~63 min detour
$10
near mile 188.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-focused drive for most of this 188.2-mile route, with 71% of it on major roadways. You'll experience a significant stretch of 127.1 miles on I-26, offering a consistent pace. The transition to Whitmire Highway and Union Highway will likely introduce a change in scenery and speed, moving away from the interstate experience. This route offers a blend of efficient highway travel with potential for more local road segments as you approach your destination.
71% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 127.1 mi on I 26.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 26 and Whitmire Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 19.3 miles in near SC 9; SC 18 / South Main Street.
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 12 significant decision points across 188.2 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 19.3 miles (SC 9; SC 18 / South Main Street): Navigation decision point; at 58.8 miles (I 26): Merge point - match speed before joining. Lane positioning matters here; at 95 miles (I 26): Highway fork - watch signs carefully. Lane positioning matters here.
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 Gaffney, SC to Summerville, SC, road signs begin pointing toward Charleston along the way.
Charleston
95 mi in|~2h 2m|via I 26
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 46m. Total distance: 188.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 46m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (71%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 127.1 miles on I 26. The full list of main roads is in the Roads section above.
Yes — we found about 14 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 Summerville, 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. There are 14 rest areas along the route for bathroom stops.
The main spots that need attention: at 19.3 miles (SC 9; SC 18 / South Main Street): Navigation decision point; at 58.8 miles (I 26): Merge point - match speed before joining. Lane positioning matters here; at 95 miles (I 26): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Cowpens National Battlefield, Congaree National Park and Fort Sumter and Fort Moultrie National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 3.8 hours each way, an in-and-out day trip would put you behind the wheel for 7.5 hours — manageable with a long break at Summerville, SC, but most travelers stay overnight.
