How far is Johns Creek, GA from St. Marys, GA?
The driving distance from Johns Creek, GA to St. Marys, GA is about 365 miles (587.4 km), with a travel time of about 06h 49m by car.
- The straight-line flight distance is about 275.5 miles (443.3 km).
- For a round trip, plan for roughly 13h 38m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 49m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Treutlen County, Georgia, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Johns Creek and St. Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johns Creek and St. Marys.
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1
Start on Morgan Hill Court
82 m · 17 sec · Morgan Hill Court
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2
Turn left onto Groomsbridge Road
2795 ft · 2 min · Groomsbridge Road
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3
At the end of the road, turn right onto Grove Point Road
1001 ft · 46 sec · Grove Point Road
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4
Turn right onto Medlock Bridge Road
2.1 mi · 3 min · Medlock Bridge Road
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5
Continue on Peachtree Parkway
3.9 mi · 7 min · Peachtree Parkway
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6
Take the exit straight toward GA 141 South: Doraville, Chamblee
998 ft · 15 sec
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7
Merge slight left onto Peachtree Industrial Boulevard
3.7 mi · 5 min · Peachtree Industrial Boulevard
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8
Take the exit slight left toward I 285 East
1974 ft · 52 sec
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9
Merge slight left onto Atlanta Bypass / The Perimeter
20.1 mi · 23 min · Atlanta Bypass / The Perimeter
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10
Take the exit slight right toward I 675 South: Macon
1.1 mi · 2 min
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11
Continue on Terrell Starr Parkway
10.2 mi · 12 min · Terrell Starr Parkway
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12
Merge slight left
49.3 mi · 53 min
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13
Keep slight left to continue on Macon, Savannah
12.3 mi · 13 min
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14
Take the exit slight right toward I 16 East: Jim Gillis Highway, Savannah
1.1 mi · 1 min
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15
Continue straight
155.9 mi · 2 hr 48 min
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16
Take the exit slight right toward I 95 South: Brunswick, Jacksonville
2418 ft · 32 sec
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17
Merge slight left
94.5 mi · 1 hr 42 min
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18
Take the exit slight right toward GA 40: Kingsland, St Marys
1675 ft · 43 sec
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19
Turn left onto East King Avenue
2.5 mi · 4 min · East King Avenue
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20
Continue on Kingsland Saint Marys Road
3 mi · 5 min · Kingsland Saint Marys Road
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21
Continue on Osborne Road
3 mi · 5 min · Osborne Road
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22
Turn right onto West Hall Street
24 m · 3 sec · West Hall Street
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23
Arrive at your destination
0 m · 1 sec · West Hall Street
Car Route Details
A richer read on the saved driving route between Johns Creek and St. Marys.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 16 East
Continue straight
156 mi · 02h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain Showers then Chance Showers And Thunderstorms leaving Johns Creek and Chance Showers And Thunderstorms near St. Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johns Creek to St. Marys?
The road trip is about 365 miles (587.4 km) and usually takes 06h 49m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Soperton is a useful midpoint, sitting about 182.6 miles from Johns Creek and 182.4 miles from St. Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 275.5 miles (443.3 km), while the road route adds roughly 89.5 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 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $51.02 one way or $102.04 round trip. Estimated CO2 is about 114.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Chance Showers And Thunderstorms around Johns Creek and Chance Showers And Thunderstorms near St. Marys.
Stop Ideas Near Soperton
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 Soperton.
Jesup
Flight Path Map
This map shows the direct air route between Johns Creek and St. Marys. Straight-line distance: 275.45 mi (443.29 km).
#1 Johns Creek
The most populous city in Fulton County, Georgia.
| Population | 85,192 |
| Coordinates | 34.0289300, -84.1985800 |
| Altitude | 286 |
| Country | United States |
#2 St. Marys
City in Camden County, Georgia, USA
| Population | 17,968 |
| Coordinates | 30.7305100, -81.5464900 |
| Altitude | 3 |
| Country | United States |
End: St. Marys (-81.54649, 30.73051)
Estimated Travel Time
Distance: 587 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 09m |
| 40 mph (64.37 km/h) | 09h 07m |
| 50 mph (80.47 km/h) | 07h 18m |
| 60 mph (96.56 km/h) | 06h 05m |
| 70 mph (112.65 km/h) | 05h 12m |
| 80 mph (129 km/h) | 04h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $51.02 | $102.04 |
| Mid-grade | $4.43 | $57.05 | $114.09 |
| Premium | $4.78 | $61.54 | $123.08 |
| Diesel | $5.62 | $72.44 | $144.87 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.