How far is Sumter, SC from Duncan, SC?
The driving distance from Sumter, SC to Duncan, SC is about 141.5 miles (227.8 km), with a travel time of about 02h 58m by car.
- The straight-line flight distance is about 124.5 miles (200.4 km).
- For a round trip, plan for roughly 05h 56m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 58m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Driving Route Map
The map below follows the saved road route between Sumter and Duncan.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumter and Duncan.
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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 right to continue on Spartanburg
23.5 mi · 25 min
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13
Take the exit slight right toward US 221: Spartanburg-South, Moore
1139 ft · 28 sec
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14
Turn slight left
29 m · 2 sec
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15
Turn left onto Highway 221
1.5 km · 2 min · Highway 221
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16
Turn right onto Moore Duncan Highway
6.2 mi · 10 min · Moore Duncan Highway
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17
Continue on East Main Street
5.8 mi · 12 min · East Main Street
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18
Turn left onto South Spencer Street
39 m · 3 sec · South Spencer Street
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19
Arrive at your destination
0 m · 1 sec · South Spencer Street
Car Route Details
A richer read on the saved driving route between Sumter and Duncan.
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 comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Sumter and Sunny near Duncan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sumter to Duncan?
The road trip is about 141.5 miles (227.8 km) and usually takes 02h 58m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Little Mountain is a useful midpoint, sitting about 70.8 miles from Sumter and 70.8 miles from Duncan.
How much longer is the road route than the straight-line distance?
The direct path is about 124.5 miles (200.4 km), while the road route adds roughly 17 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 12:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.81 one way or $39.61 round trip. Estimated CO2 is about 44.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Sumter and Sunny near Duncan.
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 Duncan. Straight-line distance: 124.53 mi (200.41 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 Duncan
Human settlement in Spartanburg County, South Carolina, United States of America
| Population | 3,715 |
| Coordinates | 34.9379000, -82.1451100 |
| Altitude | 264 |
| Country | United States |
End: Duncan (-82.14511, 34.9379)
Estimated Travel Time
Distance: 228 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 42m |
| 40 mph (64.37 km/h) | 03h 32m |
| 50 mph (80.47 km/h) | 02h 49m |
| 60 mph (96.56 km/h) | 02h 21m |
| 70 mph (112.65 km/h) | 02h 01m |
| 80 mph (129 km/h) | 01h 45m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $19.81 | $39.61 |
| Mid-grade | $4.43 | $22.15 | $44.29 |
| Premium | $4.78 | $23.89 | $47.78 |
| Diesel | $5.62 | $28.12 | $56.24 |
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 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.