How far is Alpharetta, GA from Marietta, GA?
Fastest route
The distance between Alpharetta, Georgia, and Marietta, Georgia is approximately 18.9 miles (30.4 kilometers). The estimated travel time is around 43 minutes. The best route at the moment is via GA-9 S and GA-120 W. Here are five tips/suggestions for your journey, along with emojis to represent them:
Directions
- 🚗 Head west on Academy St toward N Main St.
- 🛣️ Follow GA-9 S/Alpharetta St and GA-120 W to Roswell Rd in Marietta.
- 🔄 Turn left at the 1st cross street onto GA-9 S/Alpharetta St/S Main St.
- 🚦 Use the left 2 lanes to turn left onto N Atlanta St, passing by Firestone Complete Auto Care.
- 🗺️ Follow Roswell Rd to W Park Square, then turn right onto E Park Square, left onto N Park Square, and finally left onto W Park Square.
Tips & Suggestions
- 🚦 Check for traffic conditions and plan accordingly to avoid delays.
- ⛽ Make sure your vehicle has enough fuel for the journey.
- 📱 Use a navigation app to get real-time updates on the route.
- 🥤 Bring some snacks and drinks for a comfortable ride.
- 🕰️ Allow some extra time for unexpected stops or breaks.
FAQs
Q: How long does it take to reach Marietta from Alpharetta? A: The estimated travel time is approximately 43 minutes.
Q: What is the best route to take between the two locations? A: The best route currently is via GA-9 S and GA-120 W.
Q: Are there any landmarks or specific places to watch out for along the way? A: Yes, you'll pass by Firestone Complete Auto Care and U.S. Renal Care on your journey.
Q: Can I rely on GPS navigation for this route? A: Yes, using a navigation app will be helpful for real-time updates and directions.
Q: Should I be concerned about traffic on this route? A: It's advisable to check traffic conditions beforehand and plan your journey accordingly to avoid potential delays.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 35m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Fulton County, Georgia.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Alpharetta and Marietta.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alpharetta and Marietta.
-
1
Start on Academy Street
42 m · 11 sec · Academy Street
-
2
Turn left onto South Main Street
1.3 mi · 2 min · South Main Street
-
3
Continue on Alpharetta Highway
4.4 mi · 8 min · Alpharetta Highway
-
4
Continue on North Atlanta Street
3174 ft · 1 min · North Atlanta Street
-
5
Turn right onto Marietta Highway
2 mi · 3 min · Marietta Highway
-
6
Continue on Roswell Road
7.1 mi · 13 min · Roswell Road
-
7
Continue straight
1613 ft · 20 sec
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8
Continue on North Marietta Parkway
3.1 mi · 5 min · North Marietta Parkway
-
9
Turn left onto Church Street
2145 ft · 59 sec · Church Street
-
10
Arrive at your destination
0 m · 1 sec · West Park Square
Car Route Details
A richer read on the saved driving route between Alpharetta and Marietta.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Roswell Road
Continue on Roswell Road
7.06 mi · 00h 13m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Alpharetta and Mostly Sunny near Marietta.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alpharetta to Marietta?
The road trip is about 27.3 miles (44 km) and usually takes 00h 35m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Roswell is a useful midpoint, sitting about 9.6 miles from Alpharetta and 17.7 miles from Marietta.
How much longer is the road route than the straight-line distance?
The direct path is about 16.9 miles (27.2 km), while the road route adds roughly 10.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.80 one way or $7.61 round trip. Estimated CO2 is about 8.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Alpharetta and Mostly Sunny near Marietta.
Stop Ideas Near Roswell
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Parking Deck
Sandy Springs City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Roswell.
Peachtree Station
Gainesville
Toccoa
Flight Path Map
This map shows the direct air route between Alpharetta and Marietta. Straight-line distance: 16.93 mi (27.25 km).
#1 Alpharetta
The most populous city in Fulton County, Georgia.
| Population | 67,897 |
| Coordinates | 34.0753800, -84.2940900 |
| Altitude | 347 |
| Country | United States |
#2 Marietta
The most populous city in Cobb County, Georgia.
| Population | 60,786 |
| Coordinates | 33.9526000, -84.5499300 |
| Altitude | 344 |
| Country | United States |
End: West Park Square (-84.550173, 33.952601)
Estimated Travel Time
Distance: 44 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 54m |
| 40 mph (64.37 km/h) | 00h 40m |
| 50 mph (80.47 km/h) | 00h 32m |
| 60 mph (96.56 km/h) | 00h 27m |
| 70 mph (112.65 km/h) | 00h 23m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $3.80 | $7.61 |
| Mid-grade | $4.43 | $4.25 | $8.50 |
| Premium | $4.78 | $4.59 | $9.17 |
| Diesel | $5.62 | $5.40 | $10.80 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Georgia · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.