Marietta to Port Wentworth is 267.5 miles and takes about 5h 2m via I-75 and I-16, with a fuel budget near $41 and enough daylight to finish in a day. This drive stays within Georgia, connecting the Southeast region from beginning to end. Given its mostly highway profile and manageable duration, it's a straightforward trip best suited for a single day of driving. You'll spend most of your time on major interstates, making it a practical option for getting from point A to point B efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
133.8 miles from Marietta, GA
A natural place for your longest stop of the day
, about 2h 33m into the drive
.
Main Roads
Road
Distance
Duration
I 16
156.2 mi
2h 47m
I 75
77.1 mi
1h 25m
Horace E Tate Freeway
7.3 mi
8m
Larry McDonald Memorial Highway
5.2 mi
5m
Downtown Connector
5 mi
6m
I 95
4.4 mi
4m
James Wendell George Parkway
2.3 mi
3m
Gulfstream Road
2 mi
3m
Longest stretch:
I 16
— 156.2 mi, about 2h 47m
Traffic on I-75
Hour-of-day weekday pattern from 333 FHWA count stations on your route.
Peak
4 PM
~5,709 veh/hr typical
· worst 6,773
Quietest
2 AM
~875 veh/hr
Peak-to-quiet ratio
6.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Marietta, GA and Port Wentworth, GA.
1
Start on West Park Square
117 ft·11 sec·West Park Square
2
Continue on South Park Square
343 ft·8 sec·South Park Square
Use the left lane.
3
Continue on Roswell Street
1.7 mi·3 min·Roswell Street
Use the straight lane.
4
Turn right onto US 41; GA 3
0.7 mi·1 min·Cobb Parkway South
Use the straight lane.
5
Turn left onto GA 120
0.6 mi·1 min·South Marietta Parkway
Use the left lane.
6
Take the exit
0.5 mi·52 sec
Toward I 75 South: AtlantaUse the straight / slight right lanes.
7
Merge onto I 75
5.2 mi·5 min·Larry McDonald Memorial Highway
Use the straight / slight right lanes.
8
Continue on I 75
7.3 mi·8 min·Horace E Tate Freeway
Use the straight / slight right lanes.
9
Continue on I 75; I 85
5.0 mi·6 min·Downtown Connector
Use the straight / slight right lanes.
10
Continue on I 75; I 85
2.3 mi·3 min·James Wendell George Parkway
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 75
65 mi·1 hr 11 min·I 75
Use the straight / slight right lanes.
12
Keep slight left at fork onto I 75
12 mi·13 min·I 75
Toward Macon, SavannahUse the straight / slight right lanes.
13
Take the exit
1.1 mi·1 min
Exit 165Toward I 16 East: Jim Gillis Highway, SavannahUse the slight right lane.
14
Continue on I 16
156 mi·2 hr 47 min·I 16
Use the straight / slight right lanes.
15
Take the exit
0.3 mi·57 sec
Toward I 95 North: Airport, Florence SCUse the slight right lane.
16
Merge onto I 95
4.4 mi·4 min·I 95
Use the straight / slight right lanes.
17
Take the exit
0.4 mi·46 sec
Exit 104Toward Savannah/Hilton Head International AirportUse the straight / slight right lanes.
18
Turn right onto Airways Avenue
1.2 mi·2 min·Airways Avenue
19
Turn left onto Gulfstream Road
2.0 mi·3 min·Gulfstream Road
Use the left lane.
20
Continue on Crossgate Road
1.7 mi·3 min·Crossgate Road
21
Arrive at destination
Crossgate Road
Trip Plan
To make the most of this 5-hour drive, consider departing in the morning to ensure you have ample daylight. The route is designed for a single day, so you won't need to plan for an overnight stay. With only one recommended stop, you can be flexible with when and where you choose to stretch your legs. Keep an eye on your fuel levels, especially during the 156.2-mile stretch on I-16, as services may be less frequent there. A fuel cost estimate of $41 can help you budget accordingly.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 133.8 miles from Marietta, GA, or about 2h 33m into the drive.
The longest continuous stretch on this route runs about 156.2 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 59 miles or 1h 11m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 133.8 miles or 2h 33m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 5m
Traffic, exits, and arrival timing usually matter more near Port Wentworth, GA than in the middle of the route.
Before You Leave
+
Open the route before leaving Marietta, GA 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 Marietta, GA
This is one driving day of about 267.5 miles and 5h 2m.
Your first comfortable stop window is around 59 miles from Marietta, GA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 16 for about 156.2 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 12
5 decision points cluster between mile 3.1 and 262.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
3.1 mi into trip|~6m in
Take the exit toward I 75 South: Atlanta
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 75 South: Atlanta
8
88.2 mi into trip|~1h 43m in|I 75
Keep slight left at fork onto I 75 toward Macon, Savannah
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward Macon, Savannah
8
100.4 mi into trip|~1h 57m in
Take the exit toward I 16 East: Jim Gillis Highway, Savannah
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 165
Toward I 16 East: Jim Gillis Highway, Savannah
7
257.7 mi into trip|~4h 46m in
Take the exit toward I 95 North: Airport, Florence SC
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 95 North: Airport, Florence SC
7
262.3 mi into trip|~4h 52m in
Take the exit toward Savannah/Hilton Head International Airport
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 104
Toward Savannah/Hilton Head International Airpo...
Fuel & Cost
Regular Gas
$42.49 one way
$84.99 round trip
$4.04/gal25.4 MPG avg94 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.40
$46.34
$92.68
premium
$4.78
$50.34
$100.68
diesel
$6.18
$65.07
$130.15
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$42
Meals
$25–$50
Total
$67–$92
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 93.6 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $28 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
80.3
0
$28.09
$12.84
Efficient EV
66.9
0
$23.41
$10.70
EV Truck/SUV
107
1
$37.45
$17.12
Gas CO2
94 kg
EV CO2
31 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 Oct 19, 2026
Origin
Marietta, GA
Morning
in Marietta on Monday
Local time
7:43 AM
EDT
Current temp
45°F
Clear
E 0 to 10 mph0% chanceLive forecast
Rip Current Statement
Rip Current Statement issued October 18 at 7:36PM EDT until October 20 at 2:00AM EDT by NWS Jacksonville FL
Rip Current Statement
Rip Current Statement issued October 18 at 7:17PM EDT until October 19 at 8:00PM EDT by NWS Charleston SC
Destination
Port Wentworth, GA
Morning
in Port Wentworth on Monday
Local time
7:43 AM
EDT
Current temp
50°F
Clear
NE 12 mph0% chanceLive forecast
Rip Current Statement
Rip Current Statement issued October 18 at 7:36PM EDT until October 20 at 2:00AM EDT by NWS Jacksonville FL
Rip Current Statement
Rip Current Statement issued October 18 at 7:17PM EDT until October 19 at 8:00PM EDT by NWS Charleston SC
73°F
Jackson, GA
134 mi in
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
5 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
5h 2m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Martin Luther King, Jr. National Historical Park
National Historical Park
Welcome to Martin Luther King, Jr. National Historical Park & Preservation District where a young boy grows up in a time of segregation. He was moved by destiny to lead the modern civil rights movemen...
Welcome to Ocmulgee Mounds National Historical Park. This park is a prehistoric American Indian site, where many different American Indian cultures occupied this land for thousands of years. American...
2 mi from route
~6 min detour
Free
near mile 101.5
Today the river valley attracts us for so many reasons. Take a solitary walk to enjoy nature’s display, raft leisurely through the rocky shoals with friends, fish the misty waters as the sun comes up,...
For much of the 19th century, masonry fortifications were the United States’ main defense against overseas enemies. However, during the Civil War, new technology proved its superiority over these fort...
16 mi from route
~39 min detour
$10
near mile 267.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is primarily highway driving, with 93% of the 267.5 miles on interstates like I-75 and I-16. You'll encounter a long stretch of 156.2 miles on I-16 without needing to exit. The transition to surface roads will occur in the final miles as you approach Port Wentworth. Expect a consistent cruising speed for the majority of your trip.
93% 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: 156.2 mi on I 16.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 16 and I 75. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.1 miles in.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 267.5 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 3.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 88.2 miles (I 75): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 100.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,124 ft24 ft
Total Climb
154 ft
Total Descent
1,254 ft
Highest Point
1,124 ft
Elevation Range
1,100 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Marietta, GA and Port Wentworth, GA, road signs point toward Macon and Savannah.
Marietta is a city of 61,000 people (2019) in Metro Atlanta. It is the fourth largest city in the state. Dobbins Air Reserve Base on the south side of town and a Lockheed Martin manufacturing plant are among the major industries in the city.
Top landmarks
•Marietta National Cemetery — veterans cemetery in Cobb County, Georgia, United States
•Six Flags White Water — Water park in Cobb County, Georgia
•Aviation History & Technology Center — museum in Marietta, Georgia, USA
Port Wentworth is a city in Coastal Georgia. Mary Mulgrove, the primary interpreter between James Oglethorpe and the Yamacraws during the settling of Savannah, lived here with her husband John, and actually so did Nathaniel Greene on a plantation called Mulberry Grove along with a distinguished tutor named Eli Whitney who would invent the cotton gin. Unfortunately, General Sherman torched the plantation when the owner refused to provide food or supplies, and there aren't really any artifacts of these places other than plaques around town.
Doable as a same-day drive at 5h 2m. Total distance: 267.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 2m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (93%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 156.2 miles on I 16. The full list of main roads is in the Roads section above.
Yes — we found about 27 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Port Wentworth, GA 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. Plan at least 1 meaningful breaks. There are 27 rest areas along the route for bathroom stops.
The main spots that need attention: at 3.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 88.2 miles (I 75): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 100.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Martin Luther King, Jr. National Historical Park, Ocmulgee Mounds National Historical Park and Chattahoochee River National Recreation Area (4 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.0 hours each way, a round trip means 10.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Port Wentworth, GA before the return drive.
