The drive from Sumter, SC to Buffalo, SC covers 119.3 miles and takes about 2h 35m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 26, US 76, Whitmire Highway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 35.8 miles on I 26.
At current regular gas prices, budget about $18.66 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.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
59.6 miles from Sumter, SC
A natural place for your longest stop of the day
, about 1h 20m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 35m. Total distance: 119.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 35m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (74%). Some complex stretches to watch for.
Drive Character
This is a 2h 35m highway drive covering 119.3 miles, with most of the trip on I 26 and US 76. The longest continuous stretch is about 35.8 miles on I 26.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 22 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 26 is the longest continuous segment at about 35.8 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 26 and US 76. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.2 miles in near US 76 Business / North Washington 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 10 significant decision points across 119.3 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 0.2 miles (US 76 Business / North Washington Street): Lane positioning matters here; at 43.1 miles (SC 12 / Taylor Street): Navigation decision point; at 44 miles (US 76 / Bull Street): Lane positioning matters here.
Critical Maneuvers
5 of 10 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
0.2 mi into trip|~0m in|US 76 Business / North Washington Street
Turn right onto US 76 Business / North Washington Street
Lane positioning matters here
Use the straight / right lanes.
4
43.1 mi into trip|~58m in|SC 12 / Taylor Street
Turn left onto SC 12 / Taylor Street
Navigation decision point
6
44 mi into trip|~1h in|US 76 / Bull Street
Turn right onto US 76 / Bull Street
Lane positioning matters here
Use the straight / right lanes.
5
49.2 mi into trip|~1h 8m in|I 26; US 76
Merge onto I 26; US 76
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
85 mi into trip|~1h 48m in
Take the exit toward SC 121: Whitmire, Union
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward SC 121: Whitmire, Union
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 Sumter, SC to Buffalo, SC, road signs begin pointing toward Union along the way.
Union
85 mi in|~1h 48m
Main Roads
Road
Distance
Duration
I 26
35.8 mi
39m
US 76
34.2 mi
42m
Whitmire Highway
13.6 mi
15m
State Highway 121
13.3 mi
19m
Broad Street
5.4 mi
8m
I 126
3.8 mi
4m
Main Street
1.9 mi
3m
Millwood Avenue
1.8 mi
4m
Longest stretch:
I 26
— 35.8 mi, about 39m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumter, SC and Buffalo, SC.
1
Start on US 76 Business
0.2 mi·24 sec·East Liberty Street
2
Turn right onto US 76 Business
0.4 mi·44 sec·North Washington Street
Use the straight / right lanes.
3
Continue on US 76 Business
5.4 mi·8 min·Broad Street
4
Continue on US 76; US 378
34 mi·42 min·US 76; US 378
Use the straight / right lanes.
5
Continue on US 76; US 378
1.1 mi·2 min·Devine Street
6
Turn slight right onto US 76; US 378
1.8 mi·4 min·Millwood Avenue
7
Turn left onto SC 12
0.9 mi·1 min·Taylor Street
8
Turn right onto US 76
0.5 mi·1 min·Bull Street
Use the straight / right lanes.
9
Turn left onto US 76
0.9 mi·2 min·Elmwood Avenue
Use the left lane.
10
Continue on I 126; US 76
3.8 mi·4 min·I 126; US 76
Use the straight / slight right lanes.
11
Merge onto I 26; US 76
36 mi·39 min·I 26; US 76
Use the straight / slight right lanes.
12
Take the exit
0.3 mi·36 sec
Toward SC 121: Whitmire, Union
13
Turn right onto SC 121
13 mi·19 min·State Highway 121
14
Merge onto US 176; SC 72; SC 121
1.5 mi·1 min·US 176; SC 72; SC 121
15
Keep slight left at fork
0.1 mi·7 sec
16
Merge onto US 176
14 mi·15 min·Whitmire Highway
17
Continue on SC 18
1.5 mi·2 min·South Pinckney Street
18
Turn slight left onto SC 18
0.9 mi·1 min·Thompson Boulevard
19
Turn slight left onto SC 215
0.4 mi·45 sec·Harwood Heights
20
Continue on SC 215
0.7 mi·1 min·Buffalo-West Springs Highway
21
Continue on SC 215
1.9 mi·3 min·Main Street
22
Arrive at destination
SC 215
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.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 59.6 miles from Sumter, SC, or about 1h 20m into the drive.
The longest continuous stretch on this route runs about 35.8 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 26 miles or 34m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 59.6 miles or 1h 20m 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 7m
Traffic, exits, and arrival timing usually matter more near Buffalo, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Sumter, 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 Sumter, SC
This is one driving day of about 119.3 miles and 2h 35m.
Your first comfortable stop window is around 26 miles from Sumter, 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 35.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 59.6 mi from Sumter, SC
· 1h 20m into the drive
The midpoint is around 59.6 miles from Sumter, SC, which is a good place for a longer meal and fuel stop.
Arriving in Buffalo, SC
The final approach into Buffalo, SC usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Buffalo, SC.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
10 mi from route
~26 min detour
Free
near mile 24.7
Caution: Backcountry Trail Conditions
Park Closure: Boardwalk Partially Closed for Construction
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...
29 mi from route
~72 min detour
Free
near mile 119.3
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$18.66 one way
$37.31 round trip
$3.97/gal25.4 MPG avg42 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$20.40
$40.80
premium
$4.70
$22.08
$44.16
diesel
$5.61
$26.34
$52.68
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$19
Meals
$25–$50
Total
$44–$69
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 41.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
35.8
0
$12.53
$5.73
Efficient EV
29.8
0
$10.44
$4.77
EV Truck/SUV
47.7
0
$16.70
$7.64
Gas CO2
42 kg
EV CO2
14 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
Sumter, SC
Late night
in Sumter on Friday
Local time
4:29 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Destination
Buffalo, SC
Late night
in Buffalo on Friday
Local time
4:29 AM
EDT
Current temp
87°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
38 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
2h 35m 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 Sumter, SC to Buffalo, SC covers 119.3 miles and takes about 2h 35m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 26, US 76, Whitmire Highway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 59.6 miles from Sumter, SC. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $18.66 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.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a demanding drive. With 10 significant decision points across 119.3 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.
The main spots that need attention: at 0.2 miles (US 76 Business / North Washington Street): Lane positioning matters here; at 43.1 miles (SC 12 / Taylor Street): Navigation decision point; at 44 miles (US 76 / Bull Street): Lane positioning matters here.
On the drive from Sumter, SC to Buffalo, SC, road signs begin pointing toward Union along the way.
Yes. Nearby national parks include Congaree National Park and Cowpens National Battlefield.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
