How far is Johnston, SC from Summerville, SC?
The driving distance from Johnston, SC to Summerville, SC is about 120.5 miles (194 km), with a travel time of about 02h 15m by car.
- The straight-line flight distance is about 109.3 miles (175.9 km).
- For a round trip, plan for roughly 04h 31m 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 15m.
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 Johnston and Summerville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johnston and Summerville.
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1
Start on Lee Street
6 m · 3 sec · Lee Street
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2
Turn right onto Calhoun Street
1.8 mi · 3 min · Calhoun Street
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3
Continue on Highway 23
2.2 mi · 4 min · Highway 23
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4
Continue on West Front Street
1.1 km · 1 min · West Front Street
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5
Continue on Highway 23
3.1 mi · 5 min · Highway 23
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6
Continue on West Main Street
1.5 km · 2 min · West Main Street
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7
Continue on East Main Street
1.1 km · 1 min · East Main Street
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8
Continue on Highway 23
2.1 mi · 4 min · Highway 23
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9
Turn right onto Main Street
1.2 km · 2 min · Main Street
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10
Continue on Old Ninety Six Indian Trail
19.6 mi · 28 min · Old Ninety Six Indian Trail
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11
Continue on Railroad Avenue West
1.1 mi · 2 min · Railroad Avenue West
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12
Continue on Festival Trail Road
2.3 mi · 3 min · Festival Trail Road
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13
Keep slight left to continue on Walker Road
1.1 mi · 2 min · Walker Road
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14
Continue on John Nunn Highway
4.1 mi · 6 min · John Nunn Highway
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15
Turn left onto Salley Road
1.1 mi · 2 min · Salley Road
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16
Enter the roundabout and take exit 2 toward the route
39 m · 2 sec
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17
Exit the roundabout
7 mi · 10 min
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18
Turn right onto North Road
16.3 mi · 24 min · North Road
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19
Continue on Chestnut Street
3.1 mi · 5 min · Chestnut Street
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20
Continue on Whittaker Parkway
1.1 mi · 1 min · Whittaker Parkway
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21
Turn left onto Five Chop Road
6.1 mi · 8 min · Five Chop Road
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22
Take the exit slight right
2180 ft · 53 sec
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23
Merge slight left
44.3 mi · 48 min
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24
Take the exit slight right toward US 17 Alternate South: Summerville
1450 ft · 35 sec
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25
Turn straight onto North Main Street
2 mi · 3 min · North Main Street
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26
Turn left onto East Richardson Avenue
35 m · 5 sec · East Richardson Avenue
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27
Turn right
28 m · 7 sec
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28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Johnston and Summerville.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Five Chop Road
Merge slight left
44.3 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 Johnston and Showers And Thunderstorms near Summerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johnston to Summerville?
The road trip is about 120.5 miles (194 km) and usually takes 02h 15m 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 61.1 miles from Johnston and 59.4 miles from Summerville.
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 11.2 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 1:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.83 one way or $33.67 round trip. Estimated CO2 is about 37.8 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Johnston and Showers And Thunderstorms near Summerville.
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 Johnston and Summerville. Straight-line distance: 109.29 mi (175.88 km).
#1 Johnston
Town in South Carolina, United States
| Population | 2,395 |
| Coordinates | 33.8320800, -81.8009400 |
| Altitude | 202 |
| Country | United States |
#2 Summerville
Town in South Carolina, United States
| Population | 53,301 |
| Coordinates | 33.0185000, -80.1756500 |
| Altitude | 27 |
| Country | United States |
End: East Richardson Avenue (-80.1755, 33.018698)
Estimated Travel Time
Distance: 194 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 00m |
| 40 mph (64.37 km/h) | 03h 00m |
| 50 mph (80.47 km/h) | 02h 24m |
| 60 mph (96.56 km/h) | 02h 00m |
| 70 mph (112.65 km/h) | 01h 43m |
| 80 mph (129 km/h) | 01h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $16.83 | $33.67 |
| Mid-grade | $4.43 | $18.82 | $37.65 |
| Premium | $4.78 | $20.31 | $40.61 |
| Diesel | $5.62 | $23.90 | $47.80 |
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.