How far is St. Marys, GA from Atlanta, GA?
The driving distance from St. Marys, GA to Atlanta, GA is about 311.1 miles (500.6 km), with a travel time of about 05h 21m by car.
- The straight-line flight distance is about 266.6 miles (429 km).
- For a round trip, plan for roughly 10h 43m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 21m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Human settlement in Emanuel County, Georgia, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between St. Marys and Atlanta.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Marys and Atlanta.
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1
Start on West Hall Street
24 m · 9 sec · West Hall Street
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2
Turn left onto Osborne Street
3 mi · 5 min · Osborne Street
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3
Continue on Kingsland Saint Marys Road
3 mi · 5 min · Kingsland Saint Marys Road
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4
Continue on East King Avenue
2.2 mi · 3 min · East King Avenue
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5
Take the ramp slight right toward I 95 North: I 95 North
2798 ft · 1 min
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6
Merge slight left
94.3 mi · 1 hr 42 min
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7
Keep slight right
3075 ft · 48 sec
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8
Take the exit slight right toward I 16 West: Macon
1192 ft · 51 sec
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9
Merge slight left onto Jim Gillis Historic Savannah Parkway
155.9 mi · 2 hr 47 min · Jim Gillis Historic Savannah Parkway
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10
Continue on Fall Line Freeway
2560 ft · 40 sec · Fall Line Freeway
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11
Keep slight right to continue on I 75 North: Atlanta
2746 ft · 43 sec
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12
Merge slight left
62.1 mi · 1 hr 7 min
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13
Keep slight left to continue on I 75 North: Atlanta, Birmingham
18.2 mi · 22 min
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14
Take the exit slight right toward Fulton Street, Central Avenue, Georgia State University
1092 ft · 27 sec
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15
Keep slight right to continue on Fulton Street, Zoo Atlanta
2278 ft · 60 sec
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16
Turn right onto Fulton Street Southwest
1024 ft · 28 sec · Fulton Street Southwest
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17
Turn left onto Capitol Avenue Southeast
2546 ft · 57 sec · Capitol Avenue Southeast
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18
Arrive at your destination
0 m · 1 sec · Capitol Avenue Southeast
Car Route Details
A richer read on the saved driving route between St. Marys and Atlanta.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Jim Gillis Historic Savannah Parkway
Merge slight left onto Jim Gillis Historic Savannah Parkway
156 mi · 02h 47m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Showers And Thunderstorms Likely leaving St. Marys and Chance Showers And Thunderstorms near Atlanta.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Marys to Atlanta?
The road trip is about 311.1 miles (500.6 km) and usually takes 05h 21m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Stillmore is a useful midpoint, sitting about 171.2 miles from St. Marys and 139.8 miles from Atlanta.
How much longer is the road route than the straight-line distance?
The direct path is about 266.6 miles (429 km), while the road route adds roughly 44.5 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 6:16 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.49 one way or $86.98 round trip. Estimated CO2 is about 97.6 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around St. Marys and Chance Showers And Thunderstorms near Atlanta.
Stop Ideas Near Stillmore
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 Stillmore.
Jesup
Savannah
Flight Path Map
This map shows the direct air route between St. Marys and Atlanta. Straight-line distance: 266.56 mi (428.99 km).
#1 St. Marys
City in Camden County, Georgia, USA
| Population | 17,968 |
| Coordinates | 30.7305100, -81.5464900 |
| Altitude | 3 |
| Country | United States |
#2 Atlanta
The most populous city in Georgia and the center of the Atlanta metropolitan area.
| Population | 512,550 |
| Coordinates | 33.7490000, -84.3879800 |
| Altitude | 320 |
| Country | United States |
End: Capitol Avenue Southeast (-84.387507, 33.748861)
Estimated Travel Time
Distance: 501 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 21m |
| 40 mph (64.37 km/h) | 07h 46m |
| 50 mph (80.47 km/h) | 06h 13m |
| 60 mph (96.56 km/h) | 05h 11m |
| 70 mph (112.65 km/h) | 04h 26m |
| 80 mph (129 km/h) | 03h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $43.49 | $86.98 |
| Mid-grade | $4.43 | $48.63 | $97.26 |
| Premium | $4.78 | $52.46 | $104.92 |
| Diesel | $5.62 | $61.75 | $123.50 |
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 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.