Traveling from Hilton Head to Hanahan covers 101.6 miles and typically takes about 2 hours and 14 minutes. Since this is a straightforward trek within South Carolina, you can easily complete the journey in a single day without needing an overnight stop. Budgeting around $16 for fuel should keep your tank covered for the duration of the trip. The route stays entirely within the Southeast region, moving you from the coastal islands toward the Charleston area. It is a highly practical drive that avoids the need for complex planning or multi-day itineraries. Whether you are heading north for business or a change of scenery, this highway-focused transit is efficient and manageable.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
50.8 miles from Hilton Head, SC
A natural place for your longest stop of the day
, about 1h 4m into the drive
.
Main Roads
Road
Distance
Duration
US 17
43 mi
56m
Okatie Highway
12.2 mi
13m
Trask Parkway
11.6 mi
14m
Fording Island Road
9 mi
13m
Mark Clark Expressway
5.9 mi
7m
William Hilton Parkway
4.1 mi
4m
Robert Smalls Parkway
3.5 mi
3m
Bees Ferry Road
2.8 mi
4m
Longest stretch:
US 17
— 43 mi, about 56m
Turn-by-Turn Driving Directions
Step-by-step road directions between Hilton Head, SC and Hanahan, SC.
1
Start on US 278
0.3 mi·28 sec·William Hilton Parkway
2
Continue on US 278
3.8 mi·4 min·William Hilton Parkway
3
Continue on US 278
9.0 mi·13 min·Fording Island Road
4
Take the exit
0.3 mi·39 sec
5
Keep slight right at fork
147 ft·4 sec
6
Merge onto SC 170
12 mi·13 min·Okatie Highway
7
Continue on SC 170
1.7 mi·1 min·Edward Burton Rodgers Bridge
8
Continue on SC 170
3.5 mi·3 min·Robert Smalls Parkway
9
Turn slight left onto US 21
1.2 mi·1 min·Parris Island Gateway
10
At end of road, turn left onto US 21
12 mi·14 min·Trask Parkway
11
Take the exit
0.5 mi·1 min
12
Merge onto US 17
43 mi·56 min·US 17
13
Turn left onto S-10-57
2.8 mi·4 min·Bees Ferry Road
14
Turn right onto SC 461
2.5 mi·3 min·Glenn McConnell Parkway
15
Continue on SC 461
0.5 mi·47 sec·Paul Cantrell Boulevard
16
Take the ramp
0.4 mi·53 sec
17
Merge onto I 526
5.9 mi·7 min·Mark Clark Expressway
Use the straight / slight right lanes.
18
Take the exit
0.2 mi·23 sec
Exit 18BToward US 52 West, US 78 West
19
Turn straight onto US 52; US 78
2.0 mi·3 min·Rivers Avenue
Use the straight lane.
20
Turn right onto S-10-405
0.4 mi·54 sec·Murray Drive
Use the right lane.
21
Arrive at destination
S-10-405
Trip Plan
Because this drive is relatively short, you have plenty of flexibility in your departure time to avoid potential traffic bottlenecks. While the trip does not require any mandatory stops, taking a quick break after the 43-mile stretch on US 17 can help keep you fresh behind the wheel. Since your fuel costs are estimated at $16, filling up your tank before leaving Hilton Head is a smart way to avoid mid-trip detours. Keep a close eye on your speed as you transition between the different highway sections, as speed limits can fluctuate. Taking advantage of the direct nature of this 101.6-mile route allows you to reach Hanahan quickly and efficiently.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 50.8 miles from Hilton Head, SC, or about 1h 4m into the drive.
The longest continuous stretch on this route runs about 43 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 22 miles or 28m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 50.8 miles or 1h 4m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 47m
Traffic, exits, and arrival timing usually matter more near Hanahan, SC than in the middle of the route.
Before You Leave
+
Open the route before leaving Hilton Head, SC so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Hilton Head, SC
This is one driving day of about 101.6 miles and 2h 14m.
Your first comfortable stop window is around 22 miles from Hilton Head, SC.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 17 for about 43 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 10
5 decision points cluster between mile 13.3 and 101.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
13.3 mi into trip|~18m in
Keep slight right at fork
Highway fork - watch signs carefully
4
31.9 mi into trip|~40m in|US 21 / Trask Parkway
At end of road, turn left onto US 21 / Trask Parkway
Navigation decision point
5
93.1 mi into trip|~2h 2m in|I 526 / Mark Clark Expressway
Merge onto I 526 / Mark Clark Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
99.1 mi into trip|~2h 9m in
Take the exit toward US 52 West, US 78 West
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 18B
Toward US 52 West, US 78 West
5
101.3 mi into trip|~2h 13m in|S-10-405 / Murray Drive
Turn right onto S-10-405 / Murray Drive
Lane positioning matters here
Use the right lane.
Fuel & Cost
Regular Gas
$15.89 one way
$31.78 round trip
$3.97/gal25.4 MPG avg36 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$17.37
$34.74
premium
$4.70
$18.80
$37.61
diesel
$5.61
$22.43
$44.86
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$16
Meals
$25–$50
Total
$41–$66
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 35.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $11 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
30.5
0
$10.67
$4.88
Efficient EV
25.4
0
$8.89
$4.06
EV Truck/SUV
40.6
0
$14.22
$6.50
Gas CO2
36 kg
EV CO2
12 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 18, 2026
Origin
Hilton Head, SC
Late night
in Hilton Head on Sunday
Local time
12:35 AM
EDT
Current temp
82°F
Unavailable
Live forecast
Destination
Hanahan, SC
Late night
in Hanahan on Sunday
Local time
12:35 AM
EDT
Current temp
85°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 14m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a drive defined by significant highway connectivity, with roughly 69% of your time spent on major thoroughfares. You will navigate a mix of US 17, Okatie Highway, and Trask Parkway, which provide a steady pace for the majority of the trip. A highlight of the journey is the longest uninterrupted stretch, which spans 43 miles along US 17. The road maintains a consistent, highway-oriented personality that favors steady cruising over technical maneuvering. You will find that the transition between these major roads is seamless, keeping your focus on the road ahead as you move between these two South Carolina locales.
69% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 43 mi on US 17.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on US 17 and Okatie Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 13.3 miles in.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 10 significant decision points across 101.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 13.3 miles: Highway fork - watch signs carefully; at 31.9 miles (US 21 / Trask Parkway): Navigation decision point; at 93.1 miles (I 526 / Mark Clark Expressway): Merge point - match speed before joining. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 14m. Total distance: 101.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 14m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (69%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 43 miles on US 17. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Hanahan, SC before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 13.3 miles: Highway fork - watch signs carefully; at 31.9 miles (US 21 / Trask Parkway): Navigation decision point; at 93.1 miles (I 526 / Mark Clark Expressway): Merge point - match speed before joining. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Hanahan, SC before heading back.
