How far is Sumter, SC from Union, SC?
The driving distance from Sumter, SC to Union, SC is about 115.1 miles (185.2 km), with a travel time of about 02h 27m by car.
- The straight-line flight distance is about 91.5 miles (147.2 km).
- For a round trip, plan for roughly 04h 55m 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 27m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Driving Route Map
The map below follows the saved road route between Sumter and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumter and Union.
-
1
Start on East Liberty Street
966 ft · 24 sec · East Liberty Street
-
2
Turn right onto North Washington Street
2268 ft · 44 sec · North Washington Street
-
3
Continue on Broad Street
5.4 mi · 9 min · Broad Street
-
4
Continue straight
34.2 mi · 42 min
-
5
Continue on Devine Street
1.1 mi · 2 min · Devine Street
-
6
Turn slight right onto Millwood Avenue
1.8 mi · 4 min · Millwood Avenue
-
7
Turn left onto Taylor Street
1.5 km · 2 min · Taylor Street
-
8
Turn right onto Bull Street
2589 ft · 1 min · Bull Street
-
9
Turn left onto Elmwood Avenue
1.5 km · 2 min · Elmwood Avenue
-
10
Continue straight
3.8 mi · 5 min
-
11
Merge slight left
35.8 mi · 40 min
-
12
Take the exit slight right toward SC 121: Whitmire, Union
1436 ft · 36 sec
-
13
Turn right onto State Highway 121
13.3 mi · 20 min · State Highway 121
-
14
Merge slight left
1.5 mi · 2 min
-
15
Keep slight left
589 ft · 8 sec
-
16
Merge slight left onto Whitmire Highway
13.6 mi · 15 min · Whitmire Highway
-
17
Continue on South Pinckney Street
1.3 mi · 2 min · South Pinckney Street
-
18
Arrive at your destination
0 m · 1 sec · North Pinckney Street
Car Route Details
A richer read on the saved driving route between Sumter and Union.
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
35.8 mi · 00h 40m
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.
Partly Cloudy leaving Sumter and Mostly Clear near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sumter to Union?
The road trip is about 115.1 miles (185.2 km) and usually takes 02h 27m 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?
Irmo is a useful midpoint, sitting about 57.5 miles from Sumter and 57.5 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 91.5 miles (147.2 km), while the road route adds roughly 23.6 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 1:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.08 one way or $32.16 round trip. Estimated CO2 is about 36.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Sumter and Mostly Clear near Union.
Stop Ideas Near Irmo
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 Irmo.
Columbia
Camden
Denmark
Spartanburg
Flight Path Map
This map shows the direct air route between Sumter and Union. Straight-line distance: 91.49 mi (147.24 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 Union
Township of Union County, New Jersey
| Population | 8,045 |
| Coordinates | 34.7154100, -81.6237100 |
| Altitude | 196 |
| Country | United States |
End: Union (-81.62371, 34.71541)
Estimated Travel Time
Distance: 185 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 50m |
| 40 mph (64.37 km/h) | 02h 52m |
| 50 mph (80.47 km/h) | 02h 18m |
| 60 mph (96.56 km/h) | 01h 55m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $16.08 | $32.16 |
| Mid-grade | $4.43 | $17.98 | $35.96 |
| Premium | $4.78 | $19.40 | $38.80 |
| Diesel | $5.62 | $22.83 | $45.67 |
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 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.