Thunderbolt, GA to Roswell, GA is 273.1 miles and takes about 5h 10m via Jim Gillis Historic Savannah Parkway and I-75, with a fuel budget near $43 and enough daylight to finish in a day. This trip primarily sticks to highways, making it a straightforward journey through Georgia. You'll be covering a significant distance, so be prepared for a full day of driving. The route is entirely within the Southeast region, offering a consistent landscape as you travel. It's a practical choice for getting from point A to point B efficiently, with most of the travel on high-speed roads.
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
136.5 miles from Thunderbolt, GA
A natural place for your longest stop of the day
, about 2h 31m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 10m. Total distance: 273.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 10m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (97%). Some complex stretches to watch for.
Drive Character
This drive is heavily focused on highways, with 97% of the route utilizing them. Expect a profile that is largely a highway-focused drive, characterized by consistent speed and efficient travel. The longest uninterrupted stretch you'll encounter is 163.6 miles on Jim Gillis Historic Savannah Parkway, which sets a brisk pace for a significant portion of your trip. While primarily highway, the transition onto I-75 will maintain this high-speed character. It's a route designed for covering ground quickly rather than for leisurely exploration.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Jim Gillis Historic Savannah Parkway is the longest continuous segment at about 163.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Jim Gillis Historic Savannah Parkway and I 75. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 169 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 14 significant decision points across 273.1 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 169 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 231.6 miles (I 75): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 257.1 miles (GA 400 / T Harvey Mathis Parkway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 14 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
7
169 mi into trip|~3h 6m in
Keep slight right at fork toward I 75 North: Atlanta
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / left lanes.
Toward I 75 North: Atlanta
8
231.6 mi into trip|~4h 14m in|I 75
Keep slight left at fork onto I 75 toward I 75 North: Atlanta, Birmingham
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 75 North: Atlanta, Birmingham
9
257.1 mi into trip|~4h 46m in|GA 400 / T Harvey Mathis Parkway
Keep slight right at fork onto GA 400 / T Harvey Mathis Parkway toward GA 400 North: Buckhead, Cumming
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 87
Toward GA 400 North: Buckhead, Cumming
7
269.1 mi into trip|~5h 1m in
Take the exit toward Northridge Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 6
Toward Northridge Road
8
269.4 mi into trip|~5h 2m in
Keep slight right at fork toward Dunwoody Place
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Dunwoody Place
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Thunderbolt, GA and Roswell, GA, road signs point toward Birmingham and Cumming.
Birmingham
231.6 mi in|~4h 14m|via I 75
Cumming
257.1 mi in|~4h 46m|via GA 400
Main Roads
Road
Distance
Duration
Jim Gillis Historic Savannah Parkway
163.6 mi
2h 56m
I 75
84.9 mi
1h 35m
T Harvey Mathis Parkway
7.1 mi
8m
Turner McDonald Parkway
5 mi
6m
Northeast Expressway
2.7 mi
3m
East 37th Street
2.2 mi
3m
East Victory Drive
1.8 mi
2m
Roswell Road
1.7 mi
3m
Longest stretch:
Jim Gillis Historic Savannah Parkway
— 163.6 mi, about 2h 56m
Turn-by-Turn Driving Directions
Step-by-step road directions between Thunderbolt, GA and Roswell, GA.
Toward I 75 North: AtlantaUse the straight / left lanes.
10
Merge onto I 75
62 mi·1 hr 7 min·I 75
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 75
23 mi·28 min·I 75
Toward I 75 North: Atlanta, BirminghamUse the straight / slight right lanes.
12
Keep slight left at fork onto I 85
2.7 mi·3 min·Northeast Expressway
Exit 251BToward I 85 North: Greenville
13
Keep slight right at fork onto GA 400
7.1 mi·8 min·T Harvey Mathis Parkway
Exit 87Toward GA 400 North: Buckhead, CummingUse the straight / slight right lanes.
14
Continue on GA 400
5.0 mi·6 min·Turner McDonald Parkway
Use the right lane.
15
Take the exit
0.3 mi·47 sec
Exit 6Toward Northridge RoadUse the slight right lane.
16
Keep slight right at fork
0.2 mi·20 sec
Toward Dunwoody PlaceUse the straight / slight right lanes.
17
Turn right onto Dunwoody Place
1.2 mi·2 min·Dunwoody Place
Use the right lane.
18
Turn right onto GA 9
1.7 mi·3 min·Roswell Road
Use the right lane.
19
Continue on GA 9; GA 120
0.5 mi·1 min·North Atlanta Street
Use the straight / right lanes.
20
Keep slight left at fork onto GA 9; GA 120
393 ft·9 sec·North Atlanta Street
21
Arrive at destination
GA 9; GA 120
Trip Plan
Given the 5h 10m estimated drive time, starting your trip in the morning will allow ample daylight to reach Roswell. With only one recommended stop, plan your fuel and rest breaks strategically. The longest stretch on Jim Gillis Historic Savannah Parkway means you'll want to ensure you're fueled up before embarking on that segment. Consider a quick stop around the halfway point to stretch your legs. The 273.1-mile distance is manageable for a single day, offering flexibility in your departure time.
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 136.5 miles from Thunderbolt, GA, or about 2h 31m into the drive.
The longest continuous stretch on this route runs about 163.6 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 60 miles or 1h 8m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 136.5 miles or 2h 31m 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 6m
Traffic, exits, and arrival timing usually matter more near Roswell, GA than in the middle of the route.
Before You Leave
+
Open the route before leaving Thunderbolt, 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 Thunderbolt, GA
This is one driving day of about 273.1 miles and 5h 10m.
Your first comfortable stop window is around 60 miles from Thunderbolt, 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 Jim Gillis Historic Savannah Parkway for about 163.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 136.5 mi from Thunderbolt, GA
· 2h 31m into the drive
Place data sourced from public business listings. Hours and availability may vary.
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...
2 mi from route
~6 min detour
Free
near mile 254.3
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...
3 mi from route
~7 min detour
Free
near mile 169.5
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...
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$42.71 one way
$85.41 round trip
$3.97/gal25.4 MPG avg96 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$46.70
$93.39
premium
$4.70
$50.55
$101.09
diesel
$5.61
$60.30
$120.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$43
Meals
$25–$50
Total
$68–$93
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 95.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
81.9
1
$28.68
$13.11
Efficient EV
68.3
0
$23.90
$10.92
EV Truck/SUV
109.2
1
$38.23
$17.48
Gas CO2
96 kg
EV CO2
32 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 15, 2026
Origin
Thunderbolt, GA
Morning
in Thunderbolt on Friday
Local time
11:50 AM
EDT
Current temp
74°F
Unavailable
Live forecast
Destination
Roswell, GA
Morning
in Roswell on Friday
Local time
11:50 AM
EDT
Current temp
52°F
Unavailable
Live forecast
49°F
Jackson, GA
137 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
22 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 10m 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.
Frequently Asked Questions
The drive from Thunderbolt, GA to Roswell, GA covers 273.1 miles and takes about 5h 10m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Jim Gillis Historic Savannah Parkway, I 75, T Harvey Mathis Parkway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 136.5 miles from Thunderbolt, GA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $42.71 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 14 significant decision points across 273.1 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.
The main spots that need attention: at 169 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 231.6 miles (I 75): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 257.1 miles (GA 400 / T Harvey Mathis Parkway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Thunderbolt, GA and Roswell, GA, road signs point toward Birmingham and Cumming.
Yes. Nearby national parks include Martin Luther King, Jr. National Historical Park, Ocmulgee Mounds National Historical Park and Chattahoochee River National Recreation Area. There are 4 parks within detour distance of this route.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
