How far is Summerville, SC from Johnston, SC?
The driving distance from Summerville, SC to Johnston, SC is about 123 miles (197.9 km), with a travel time of about 02h 46m by car.
- The straight-line flight distance is about 109.3 miles (175.9 km).
- For a round trip, plan for roughly 05h 32m 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 46m.
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.
Human settlement in Orangeburg County, South Carolina, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Summerville and Johnston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Summerville and Johnston.
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1
Start on the route
28 m · 12 sec
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2
Turn left onto East Richardson Avenue
35 m · 7 sec · East Richardson Avenue
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3
Turn right onto North Main Street
2.2 mi · 4 min · North Main Street
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4
Take the ramp slight left toward I-26 West
2191 ft · 56 sec
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5
Merge slight left
44.6 mi · 48 min
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6
Take the exit slight right toward US 301 South: Orangeburg
1530 ft · 37 sec
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7
Merge slight left onto Five Chop Road
6.4 mi · 8 min · Five Chop Road
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8
Turn right onto Whittaker Parkway
1.1 mi · 1 min · Whittaker Parkway
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9
Continue on Chestnut Street
3.1 mi · 5 min · Chestnut Street
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10
Continue on North Road
16.3 mi · 24 min · North Road
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11
Turn left onto Salley Road
7 mi · 10 min · Salley Road
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12
Enter the roundabout and take exit 2 toward the route
45 m · 2 sec
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13
Exit the roundabout
1.1 mi · 2 min
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14
Turn right onto John Nunn Highway
4.1 mi · 6 min · John Nunn Highway
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15
Continue on Walker Road
1.1 mi · 2 min · Walker Road
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16
Turn straight onto Festival Trail Road
2.3 mi · 3 min · Festival Trail Road
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17
Continue on Railroad Avenue East
1.1 mi · 2 min · Railroad Avenue East
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18
Continue on Old Ninety Six Indian Trail
19.6 mi · 28 min · Old Ninety Six Indian Trail
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19
Continue on Main Street
1.2 km · 2 min · Main Street
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20
Turn left onto Highway 23
2.1 mi · 4 min · Highway 23
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21
Continue on East Main Street
1.6 mi · 3 min · East Main Street
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22
Continue on Highway 23
3.1 mi · 5 min · Highway 23
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23
Continue on East Front Street
1.1 km · 1 min · East Front Street
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24
Continue on Highway 23
2.2 mi · 4 min · Highway 23
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25
Continue on Calhoun Street
1.8 mi · 3 min · Calhoun Street
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26
Turn left onto Lee Street
6 m · 1 sec · Lee Street
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27
Arrive at your destination
0 m · 1 sec · Lee Street
Car Route Details
A richer read on the saved driving route between Summerville and Johnston.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I-26 West
Merge slight left
44.6 mi · 00h 48m
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.
Showers And Thunderstorms leaving Summerville and Showers And Thunderstorms near Johnston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Summerville to Johnston?
The road trip is about 123 miles (197.9 km) and usually takes 02h 46m 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?
Edisto is a useful midpoint, sitting about 61.5 miles from Summerville and 61.5 miles from Johnston.
How much longer is the road route than the straight-line distance?
The direct path is about 109.3 miles (175.9 km), while the road route adds roughly 13.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 12:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.19 one way or $34.38 round trip. Estimated CO2 is about 38.6 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Summerville and Showers And Thunderstorms near Johnston.
Stop Ideas Near Edisto
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 Edisto.
Denmark
Columbia
Yemassee
Camden
Flight Path Map
This map shows the direct air route between Summerville and Johnston. Straight-line distance: 109.29 mi (175.88 km).
#1 Summerville
Town in South Carolina, United States
| Population | 53,301 |
| Coordinates | 33.0185000, -80.1756500 |
| Altitude | 27 |
| Country | United States |
#2 Johnston
Town in South Carolina, United States
| Population | 2,395 |
| Coordinates | 33.8320800, -81.8009400 |
| Altitude | 202 |
| Country | United States |
End: Johnston (-81.80094, 33.83208)
Estimated Travel Time
Distance: 198 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 05m |
| 40 mph (64.37 km/h) | 03h 04m |
| 50 mph (80.47 km/h) | 02h 27m |
| 60 mph (96.56 km/h) | 02h 02m |
| 70 mph (112.65 km/h) | 01h 45m |
| 80 mph (129 km/h) | 01h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $17.19 | $34.38 |
| Mid-grade | $4.43 | $19.22 | $38.44 |
| Premium | $4.78 | $20.74 | $41.47 |
| Diesel | $5.62 | $24.41 | $48.82 |
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 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.