Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 9, 2026 · Editorial standards
Drive Time
54m
Distance
40 mi
64 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Roswell, GA
Wikimedia Commons
Flowery Branch, GA
0xd1ma
The drive from Roswell, GA to Flowery Branch, GA covers 40 miles and takes about 54m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Interstate Highway 85, Lanier Parkway, Holcomb Bridge Road for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 13.2 miles on Interstate Highway 85. At current regular gas prices, budget about $6.13 one way before food or hotel costs.
| Road | Distance | Duration |
|---|---|---|
| Interstate Highway 85 | 13.2 mi | 14m |
| Lanier Parkway | 11.4 mi | 12m |
| Holcomb Bridge Road | 8 mi | 14m |
| Jimmy Carter Boulevard | 3.6 mi | 5m |
| Norcross Street | 0.9 mi | 1m |
| Warsaw Road | 0.6 mi | 1m |
| I 85 | 0.5 mi | <1m |
| Phil Neikro Boulevard | 0.5 mi | <1m |
Hour-of-day weekday pattern from 130 FHWA count stations on your route.
Peak
3 PM
~7,671 veh/hr typical
Quietest
2 AM
~1,029 veh/hr
Peak-to-quiet ratio
7.5×
busier at peak than in the quiet hours
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between Roswell, GA and Flowery Branch, GA.
Start on GA 9; GA 120
Turn right onto GA 9; GA 120
Turn right onto Norcross Street
Enter roundabout onto Warsaw Road
Continue on Warsaw Road
Turn right onto GA 140
Turn straight onto GA 140
Continue on GA 140
Take the ramp
Merge onto I 85
Keep slight right at fork onto I 85
Keep slight left at fork onto I 985
Take the exit
Turn left onto Spout Springs Road
Continue on Phil Neikro Boulevard
Continue on Snelling Avenue
Turn right onto Railroad Avenue
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
20 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 40 miles helps settle the day before fatigue starts building.
The midpoint is around 20 miles from Roswell, GA, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 13.3 and 39.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Take the ramp toward I 85 North
Lane positioning matters here
Merge onto I 85 / Interstate Highway 85
Merge point - match speed before joining. Lane positioning matters here
Keep slight left at fork onto I 985 / Lanier Parkway toward I 985 North: Gainesville
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward Spout Springs Road, Flowery Branch
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn right onto Railroad Avenue
Navigation decision point
Regular Gas
$6.13 one way
$12.26 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.27 | $6.73 | $13.45 |
| premium | $4.64 | $7.30 | $14.60 |
| diesel | $5.60 | $8.82 | $17.63 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 14 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $4 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 12 | 0 | $4.20 | $1.92 |
| Efficient EV | 10 | 0 | $3.50 | $1.60 |
| EV Truck/SUV | 16 | 0 | $5.60 | $2.56 |
Gas CO2
14 kg
EV CO2
5 kg (64% 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.
Current conditions at both ends of the drive.
Origin
Evening in Roswell on Tuesday
Local time
8:48 PM
EDT
Current temp
90°F
Mostly Sunny
Destination
Evening in Flowery Branch on Tuesday
Local time
8:48 PM
EDT
Current temp
70°F
Mostly Clear
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
40 mi in 54m, mostly highway — 13.2 mi of that is on Interstate Highway 85.
This is a straightforward highway drive that stays mostly on Interstate Highway 85 and Lanier Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 13.3 miles in.
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 11 decision points packed into just 40 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 54m.
Where does it get tricky?
The main spots that need attention: at 13.3 miles: Lane positioning matters here; at 13.6 miles (I 85 / Interstate Highway 85): Merge point - match speed before joining. Lane positioning matters here; at 27.3 miles (I 985 / Lanier Parkway): Highway fork - watch signs carefully. Lane positioning matters here.
Mostly flat terrain
Total Climb
465 ft
Total Descent
428 ft
Highest Point
1,207 ft
~37.1 mi in
Elevation Range
290 ft
Founded 1854
Roswell is a city in Metro Atlanta.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 54m. Total distance: 40 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
54m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (63%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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