How far is Sumter, SC from Williamston, SC?
The driving distance from Sumter, SC to Williamston, SC is about 145.9 miles (234.8 km), with a travel time of about 03h 04m by car.
- The straight-line flight distance is about 131.2 miles (211.1 km).
- For a round trip, plan for roughly 06h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 04m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Newberry County, South Carolina, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Sumter and Williamston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumter and Williamston.
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1
Start on East Liberty Street
966 ft · 24 sec · East Liberty Street
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2
Turn right onto North Washington Street
2268 ft · 44 sec · North Washington Street
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3
Continue on Broad Street
5.4 mi · 9 min · Broad Street
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4
Continue straight
34.2 mi · 42 min
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5
Continue on Devine Street
1.1 mi · 2 min · Devine Street
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6
Turn slight right onto Millwood Avenue
1.8 mi · 4 min · Millwood Avenue
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7
Turn left onto Taylor Street
1.5 km · 2 min · Taylor Street
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8
Turn right onto Bull Street
2589 ft · 1 min · Bull Street
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9
Turn left onto Elmwood Avenue
1.5 km · 2 min · Elmwood Avenue
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10
Continue straight
3.8 mi · 5 min
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11
Merge slight left
55.7 mi · 1 hr 1 min
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12
Keep slight left to continue on I 385 North: Laurens, Greenville
22.9 mi · 25 min
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13
Take the exit slight right toward SC 418: Fountain Inn, Pelzer
1153 ft · 37 sec
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14
Turn left onto McCarter Road
2226 ft · 42 sec · McCarter Road
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15
Continue on Milacron Drive
1.3 mi · 2 min · Milacron Drive
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16
Continue on Highway 418
9.9 mi · 15 min · Highway 418
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17
Continue on Highway 8 East
3.7 mi · 6 min · Highway 8 East
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18
Continue on Lebby Street
1144 ft · 29 sec · Lebby Street
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19
Turn left onto Courtney Street
1 mi · 2 min · Courtney Street
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20
At the end of the road, turn left onto South Carolina 20
537 ft · 11 sec · South Carolina 20
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21
Continue on Greenville Drive
1.2 km · 1 min · Greenville Drive
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22
Continue on East Main Street
1448 ft · 38 sec · East Main Street
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23
Turn left onto Mill Street
80 m · 13 sec · Mill Street
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24
Turn right onto Mineral Park Lane
893 ft · 41 sec · Mineral Park Lane
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25
Turn right onto Spring Park
81 m · 12 sec · Spring Park
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26
Arrive at your destination
0 m · 1 sec · Spring Park
Car Route Details
A richer read on the saved driving route between Sumter and Williamston.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Elmwood Avenue
Merge slight left
55.7 mi · 01h 01m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny leaving Sumter and Mostly Sunny near Williamston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sumter to Williamston?
The road trip is about 145.9 miles (234.8 km) and usually takes 03h 04m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Little Mountain is a useful midpoint, sitting about 72.9 miles from Sumter and 73 miles from Williamston.
How much longer is the road route than the straight-line distance?
The direct path is about 131.2 miles (211.1 km), while the road route adds roughly 14.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:52 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.40 one way or $40.80 round trip. Estimated CO2 is about 45.8 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Sumter and Mostly Sunny near Williamston.
Stop Ideas Near Little Mountain
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Little Mountain.
Columbia
Camden
Spartanburg
Denmark
Flight Path Map
This map shows the direct air route between Sumter and Williamston. Straight-line distance: 131.17 mi (211.1 km).
#1 Sumter
City in and county seat of Sumter County, South Carolina, United States
| Population | 39,439 |
| Coordinates | 33.9204400, -80.3414700 |
| Altitude | 52 |
| Country | United States |
#2 Williamston
Town in Anderson County, South Carolina
| Population | 4,298 |
| Coordinates | 34.6184500, -82.4779100 |
| Altitude | 248 |
| Country | United States |
End: Williamston (-82.47791, 34.61845)
Estimated Travel Time
Distance: 235 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 51m |
| 40 mph (64.37 km/h) | 03h 38m |
| 50 mph (80.47 km/h) | 02h 55m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $20.40 | $40.80 |
| Mid-grade | $4.43 | $22.81 | $45.62 |
| Premium | $4.78 | $24.61 | $49.21 |
| Diesel | $5.62 | $28.96 | $57.93 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in South Carolina · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.