If you are planning to travel from Grantville to Alpharetta, expect a straightforward 74.5-mile journey that typically takes about 1 hour and 31 minutes. Since this is a single-day trip, you can easily complete it in one go without needing an overnight stay. Your travel budget should account for roughly $12 in fuel costs to cover the distance across this Southeast region. Because the route is entirely within Georgia, you will experience a consistent regional feel as you transition between these two areas. This drive is designed for those who prefer efficiency over exploration, making it a practical choice for commuters or travelers looking to reach their destination quickly.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
37.2 miles from Grantville, GA
A natural place for your longest stop of the day
, about 44m into the drive
.
Main Roads
Road
Distance
Duration
I 85
49.2 mi
56m
Turner McDonald Parkway
11 mi
13m
T Harvey Mathis Parkway
7.1 mi
8m
Northeast Expressway
2.7 mi
3m
US 29
1.6 mi
2m
Haynes Bridge Road
1.3 mi
2m
South Main Street
0.3 mi
<1m
Lone Oak Street
0.3 mi
<1m
Longest stretch:
I 85
— 49.2 mi, about 56m
Turn-by-Turn Driving Directions
Step-by-step road directions between Grantville, GA and Alpharetta, GA.
1
Start on Main Street
0.1 mi·16 sec·Main Street
2
Keep slight left at fork onto Lone Oak Street
0.3 mi·42 sec·Lone Oak Street
3
Turn left onto US 29; GA 14
1.6 mi·2 min·US 29; GA 14
4
Take the ramp
0.4 mi·50 sec
Toward I 85 North: Atlanta
5
Merge onto I 85
49 mi·56 min·I 85
Use the straight / slight right lanes.
6
Keep slight left at fork onto I 85
2.7 mi·3 min·Northeast Expressway
Exit 251BToward I 85 North: Greenville
7
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.
8
Continue on GA 400
11 mi·13 min·Turner McDonald Parkway
Use the right lane.
9
Take the exit
0.3 mi·33 sec
Exit 9Toward Alpharetta, Haynes Bridge RoadUse the straight / slight right lanes.
10
Turn left onto Haynes Bridge Road
1.3 mi·2 min·Haynes Bridge Road
Use the left lane.
11
Turn left onto GA 120
0.2 mi·21 sec·Old Milton Parkway
Use the left lane.
12
Turn right onto GA 9
0.3 mi·52 sec·South Main Street
13
Turn right onto Academy Street
139 ft·3 sec·Academy Street
14
Arrive at destination
Academy Street
Trip Plan
Given the 1-hour and 31-minute duration, you have plenty of flexibility regarding your departure time. Since there are no mandatory stops required for a drive of this length, you can easily manage the trip without complex planning. Keep in mind that your longest uninterrupted segment is nearly 50 miles, so ensure your vehicle is fueled up before hitting I-85 to avoid unnecessary detours. Because the route is short, you can comfortably make the trip at your own pace without worrying about fatigue. A smart way to approach this is to check traffic reports for the parkway sections before you leave, as these stretches can be sensitive to local congestion.
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 37.2 miles from Grantville, GA, or about 44m into the drive.
The longest continuous stretch on this route runs about 49.2 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 16 miles or 19m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 37.2 miles or 44m 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 15m
Traffic, exits, and arrival timing usually matter more near Alpharetta, GA than in the middle of the route.
Before You Leave
+
Open the route before leaving Grantville, GA so your first major turns are already loaded.
Day 1
Settle into the route from Grantville, GA
This is one driving day of about 74.5 miles and 1h 31m.
Your first comfortable stop window is around 16 miles from Grantville, GA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 85 for about 49.2 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 10
5 decision points cluster between mile 0.1 and 72.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.1 mi into trip|~0m in|Lone Oak Street
Keep slight left at fork onto Lone Oak Street
Highway fork - watch signs carefully
5
2.4 mi into trip|~4m in|I 85
Merge onto I 85
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
51.6 mi into trip|~1h in|I 85 / Northeast Expressway
Keep slight left at fork onto I 85 / Northeast Expressway toward I 85 North: Greenville
Highway fork - watch signs carefully
Exit 251B
Toward I 85 North: Greenville
9
54.3 mi into trip|~1h 4m 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
8
72.4 mi into trip|~1h 26m in
Take the exit toward Alpharetta, Haynes Bridge Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 9
Toward Alpharetta, Haynes Bridge Road
Fuel & Cost
Regular Gas
$11.65 one way
$23.30 round trip
$3.97/gal25.4 MPG avg26 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.34
$12.74
$25.48
premium
$4.70
$13.79
$27.58
diesel
$5.61
$16.45
$32.90
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 26.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging
· 0 stops
· 65% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
22.3
0
$7.82
$3.58
Efficient EV
18.6
0
$6.52
$2.98
EV Truck/SUV
29.8
0
$10.43
$4.77
Gas CO2
26 kg
EV CO2
9 kg (65% 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 16, 2026
Origin
Grantville, GA
Late night
in Grantville on Sunday
Local time
3:52 AM
EDT
Current temp
45°F
Unavailable
Live forecast
Destination
Alpharetta, GA
Late night
in Alpharetta on Sunday
Local time
3:52 AM
EDT
Current temp
86°F
Sunny
W 10 mph0% chanceLive forecast
Special Weather Statement
Special Weather Statement issued April 16 at 5:50AM EDT by NWS Greenville-Spartanburg SC
Special Weather Statement
Special Weather Statement issued April 15 at 8:01PM EDT by NWS Peachtree City GA
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
41 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
1h 31m on the road
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.
More Details
What kind of drive is this?
This trip is a quintessential highway-focused drive, with 96% of your time spent on high-speed roads. You will spend the vast majority of your journey navigating I-85, which accounts for a 49.2-mile stretch of your total route. As you progress, the road transitions into the Turner McDonald Parkway and the T Harvey Mathis Parkway to finish the trek. Expect a consistent, fast-paced experience behind the wheel, as the route prioritizes speed and directness over winding scenic paths. It is a functional interstate grind that allows you to maintain a steady speed for nearly the entire duration of the drive.
96% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 49.2 mi on I 85.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 85 and Turner McDonald Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near Lone Oak Street.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 74.5 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (Lone Oak Street): Highway fork - watch signs carefully; at 2.4 miles (I 85): Merge point - match speed before joining. Lane positioning matters here; at 51.6 miles (I 85 / Northeast Expressway): Highway fork - watch signs carefully.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Grantville, GA to Alpharetta, GA, road signs begin pointing toward Cumming along the way.
Cumming
54.3 mi in|~1h 4m|via GA 400
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 31m. Total distance: 74.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 31m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 49.2 miles on I 85. 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 Alpharetta, GA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 0.1 miles (Lone Oak Street): Highway fork - watch signs carefully; at 2.4 miles (I 85): Merge point - match speed before joining. Lane positioning matters here; at 51.6 miles (I 85 / Northeast Expressway): Highway fork - watch signs carefully.
Yes. A round trip is manageable in a single day if you plan a break at Alpharetta, GA before heading back.
