How far is Smyrna, GA from Marietta, GA?
The driving distance from Smyrna, GA to Marietta, GA is about 85.1 miles (137 km), with a travel time of about 01h 26m by car.
- The straight-line flight distance is about 70.2 miles (112.9 km).
- For a round trip, plan for roughly 02h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 26m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Rockdale County, Georgia, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Smyrna and Marietta.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smyrna and Marietta.
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1
Start on Buckhead Road
31 m · 5 sec · Buckhead Road
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2
Turn left onto Greensboro Road
3 mi · 4 min · Greensboro Road
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3
Turn left onto Madison Bypass
4.2 mi · 6 min · Madison Bypass
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4
Continue on Eatonton Road
3165 ft · 1 min · Eatonton Road
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5
Take the exit right toward I 20 West: Atlanta
2122 ft · 26 sec
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6
Continue on Purple Heart Highway
46.9 mi · 50 min · Purple Heart Highway
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7
Continue on Ralph David Abernathy Freeway
9.1 mi · 11 min · Ralph David Abernathy Freeway
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8
Take the exit slight right toward Hill Street, Turner Field
1410 ft · 35 sec
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9
At the end of the road, turn right onto Hill Street Southeast
1209 ft · 42 sec · Hill Street Southeast
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10
Turn left onto Martin Luther King Jr. Drive Southeast
1327 ft · 29 sec · Martin Luther King Jr. Drive Southeast
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11
Take the ramp right toward I 75 North, I 85 North
1168 ft · 28 sec
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12
Merge slight left onto Downtown Connector
3.1 mi · 4 min · Downtown Connector
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13
Keep slight right to continue on Horace E Tate Freeway
7.2 mi · 9 min · Horace E Tate Freeway
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14
Continue on Larry McDonald Memorial Highway
7 mi · 8 min · Larry McDonald Memorial Highway
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15
Take the exit slight right toward GA 120 Alternate: North Marietta Parkway
2101 ft · 31 sec
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16
Turn left onto North Marietta Parkway
1.8 mi · 4 min · North Marietta Parkway
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17
Turn left onto Church Street
2145 ft · 59 sec · Church Street
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18
Arrive at your destination
0 m · 1 sec · West Park Square
Car Route Details
A richer read on the saved driving route between Smyrna and Marietta.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Purple Heart Highway
Continue on Purple Heart Highway
46.9 mi · 00h 50m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Smyrna and Sunny near Marietta.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smyrna to Marietta?
The road trip is about 85.1 miles (137 km) and usually takes 01h 26m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Conyers is a useful midpoint, sitting about 42.6 miles from Smyrna and 42.6 miles from Marietta.
How much longer is the road route than the straight-line distance?
The direct path is about 70.2 miles (112.9 km), while the road route adds roughly 14.9 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.88 one way or $23.77 round trip. Estimated CO2 is about 26.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Smyrna and Sunny near Marietta.
Stop Ideas Near Conyers
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Conyers.
Peachtree Station
Gainesville
Toccoa
Flight Path Map
This map shows the direct air route between Smyrna and Marietta. Straight-line distance: 70.17 mi (112.93 km).
#1 Smyrna
The most populous city in Cobb County, Georgia.
| Population | 56,443 |
| Coordinates | 33.5981800, -83.4048900 |
| Altitude | 188 |
| 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: 137 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 50m |
| 40 mph (64.37 km/h) | 02h 07m |
| 50 mph (80.47 km/h) | 01h 42m |
| 60 mph (96.56 km/h) | 01h 25m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $11.88 | $23.77 |
| Mid-grade | $4.43 | $13.29 | $26.57 |
| Premium | $4.78 | $14.33 | $28.67 |
| Diesel | $5.62 | $16.87 | $33.74 |
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 · May 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.