How far is Barnwell, SC from Hilton Head Island, SC?
The driving distance from Barnwell, SC to Hilton Head Island, SC is about 99.4 miles (159.9 km), with a travel time of about 02h 04m by car.
- The straight-line flight distance is about 81.1 miles (130.5 km).
- For a round trip, plan for roughly 04h 08m 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 04m.
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.
Town in Beaufort and Hampton Counties, South Carolina
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Barnwell and Hilton Head Island.
Turn-by-Turn Driving Directions
Step-by-step road directions between Barnwell and Hilton Head Island.
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1
Start on the route
64 m · 18 sec
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2
Turn right
17 m · 7 sec
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3
Turn right onto Main Street
76 m · 15 sec · Main Street
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4
Turn left onto Marlboro Avenue
4.8 mi · 8 min · Marlboro Avenue
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5
Continue straight
11.9 mi · 18 min
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6
Turn right onto Main Street North
1689 ft · 31 sec · Main Street North
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7
Turn left onto East Railroad Avenue
1.6 km · 1 min · East Railroad Avenue
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8
Continue on Allendale-Fairfax Highway
4.5 mi · 7 min · Allendale-Fairfax Highway
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9
Continue on Allendale-Hampton Highway
1.1 mi · 2 min · Allendale-Hampton Highway
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10
Continue on Augusta Highway
1.8 mi · 3 min · Augusta Highway
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11
Continue on Railroad Avenue Southwest
1.4 mi · 2 min · Railroad Avenue Southwest
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12
Continue on Augusta Highway
3.7 mi · 5 min · Augusta Highway
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13
Continue on Elm Street West
2.7 mi · 4 min · Elm Street West
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14
Continue on West Carolina Avenue
2.1 mi · 4 min · West Carolina Avenue
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15
Continue on Augusta Highway
1.1 mi · 2 min · Augusta Highway
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16
Keep slight right to continue on Grays Highway
17.3 mi · 26 min · Grays Highway
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17
Turn left onto Morgandollar Road
4 mi · 7 min · Morgandollar Road
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18
Turn right onto West Frontage Road
3069 ft · 1 min · West Frontage Road
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19
Turn left onto Coosaw Scenic Drive
9.7 mi · 13 min · Coosaw Scenic Drive
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20
Continue on Lowcountry Drive
7.9 mi · 11 min · Lowcountry Drive
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21
Turn right onto Okatie Highway
4.2 mi · 5 min · Okatie Highway
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22
Take the exit slight right
1365 ft · 37 sec
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23
Merge slight left onto Fording Island Road
9.3 mi · 13 min · Fording Island Road
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24
Continue on William Hilton Parkway
3.8 mi · 5 min · William Hilton Parkway
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25
Keep slight left to continue on Cross Island Parkway
2.4 mi · 3 min · Cross Island Parkway
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26
Take the exit slight right
2198 ft · 59 sec
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27
Turn left onto Marshland Road
2.3 mi · 6 min · Marshland Road
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28
Turn right onto Allen Road
887 ft · 39 sec · Allen Road
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29
Arrive at your destination
0 m · 1 sec · Allen Road
Car Route Details
A richer read on the saved driving route between Barnwell and Hilton Head Island.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Grays Highway
Keep slight right to continue on Grays Highway
17.3 mi · 00h 26m
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 Barnwell and Sunny near Hilton Head Island.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Barnwell to Hilton Head Island?
The road trip is about 99.4 miles (159.9 km) and usually takes 02h 04m 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?
Yemassee is a useful midpoint, sitting about 49.3 miles from Barnwell and 50 miles from Hilton Head Island.
How much longer is the road route than the straight-line distance?
The direct path is about 81.1 miles (130.5 km), while the road route adds roughly 18.3 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 2:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.90 one way or $27.81 round trip. Estimated CO2 is about 31.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Barnwell and Sunny near Hilton Head Island.
Stop Ideas Near Yemassee
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 Yemassee.
Yemassee
Savannah
Denmark
Charleston, South Carolina
Flight Path Map
This map shows the direct air route between Barnwell and Hilton Head Island. Straight-line distance: 81.09 mi (130.5 km).
#1 Barnwell
City in Barnwell County, South Carolina, United States
| Population | 4,260 |
| Coordinates | 33.2448700, -81.3587200 |
| Altitude | 66 |
| Country | United States |
#2 Hilton Head Island
Resort town in South Carolina, USA
| Population | 39,619 |
| Coordinates | 32.1938200, -80.7381600 |
| Altitude | 3 |
| Country | United States |
End: Allen Road (-80.737481, 32.193969)
Estimated Travel Time
Distance: 160 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 18m |
| 40 mph (64.37 km/h) | 02h 29m |
| 50 mph (80.47 km/h) | 01h 59m |
| 60 mph (96.56 km/h) | 01h 39m |
| 70 mph (112.65 km/h) | 01h 25m |
| 80 mph (129 km/h) | 01h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $13.90 | $27.81 |
| Mid-grade | $4.43 | $15.55 | $31.09 |
| Premium | $4.78 | $16.77 | $33.54 |
| Diesel | $5.62 | $19.74 | $39.48 |
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 · Apr 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.