How far is Marietta, GA from Alpharetta, GA?
The driving distance from Marietta, GA to Alpharetta, GA is about 28.5 miles (45.8 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 16.9 miles (27.2 km).
- For a round trip, plan for roughly 01h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
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 34m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Marietta and Alpharetta.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marietta and Alpharetta.
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1
Start on West Park Square
36 m · 11 sec · West Park Square
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2
Continue on South Park Square
105 m · 9 sec · South Park Square
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3
Continue on Roswell Street
1.7 mi · 4 min · Roswell Street
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4
Continue on Roswell Road
8.7 mi · 16 min · Roswell Road
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5
Continue on Marietta Highway
2 mi · 4 min · Marietta Highway
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6
Turn left onto North Atlanta Street
2899 ft · 1 min · North Atlanta Street
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7
Keep slight right to continue on Alpharetta Highway
4.5 mi · 8 min · Alpharetta Highway
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8
Continue on South Main Street
1.3 mi · 2 min · South Main Street
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9
Turn right onto Academy Street
42 m · 4 sec · Academy Street
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10
Arrive at your destination
0 m · 1 sec · Academy Street
Car Route Details
A richer read on the saved driving route between Marietta and Alpharetta.
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
8.74 mi · 00h 16m
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.
Sunny leaving Marietta and Sunny near Alpharetta.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marietta to Alpharetta?
The road trip is about 28.5 miles (45.8 km) and usually takes 00h 34m 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 9.4 miles from Marietta and 19.1 miles from Alpharetta.
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 11.6 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 7:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.96 one way or $7.92 round trip. Estimated CO2 is about 8.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Marietta and Sunny near Alpharetta.
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 Marietta and Alpharetta. Straight-line distance: 16.93 mi (27.25 km).
#1 Marietta
The most populous city in Cobb County, Georgia.
| Population | 60,786 |
| Coordinates | 33.9526000, -84.5499300 |
| Altitude | 344 |
| Country | United States |
#2 Alpharetta
The most populous city in Fulton County, Georgia.
| Population | 67,897 |
| Coordinates | 34.0753800, -84.2940900 |
| Altitude | 347 |
| Country | United States |
End: Academy Street (-84.29408, 34.075615)
Estimated Travel Time
Distance: 46 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 56m |
| 40 mph (64.37 km/h) | 00h 42m |
| 50 mph (80.47 km/h) | 00h 34m |
| 60 mph (96.56 km/h) | 00h 28m |
| 70 mph (112.65 km/h) | 00h 24m |
| 80 mph (129 km/h) | 00h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $3.96 | $7.92 |
| Mid-grade | $4.43 | $4.43 | $8.86 |
| Premium | $4.78 | $4.78 | $9.56 |
| Diesel | $5.62 | $5.62 | $11.25 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.