How far is Marietta, GA from Martinez, GA?
The driving distance from Marietta, GA to Martinez, GA is about 162 miles (260.7 km), with a travel time of about 03h 04m by car.
- The straight-line flight distance is about 145.3 miles (233.9 km).
- For a round trip, plan for roughly 06h 09m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EST.
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 03h 04m.
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.
The most populous city in Cobb County, Georgia.
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 Marietta and Martinez.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marietta and Martinez.
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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
Turn right onto Cobb Parkway South
1.1 km · 1 min · Cobb Parkway South
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5
Turn left onto South Marietta Parkway
1 km · 1 min · South Marietta Parkway
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6
Take the exit slight right toward I 75 South: Atlanta
2479 ft · 53 sec
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7
Merge slight left onto Larry McDonald Memorial Highway
5.2 mi · 6 min · Larry McDonald Memorial Highway
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8
Continue on Horace E Tate Freeway
7.3 mi · 9 min · Horace E Tate Freeway
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9
Continue on Downtown Connector
3.2 mi · 4 min · Downtown Connector
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10
Take the exit slight right toward I 20: Augusta, Birmingham
1465 ft · 36 sec
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11
Keep slight left to continue on I 20 East: Augusta
3268 ft · 1 min
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12
Merge slight left onto Ralph David Abernathy Freeway
9.7 mi · 12 min · Ralph David Abernathy Freeway
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13
Continue on Purple Heart Highway
46.9 mi · 50 min · Purple Heart Highway
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14
Continue on Carl Sanders Highway
81.8 mi · 1 hr 28 min · Carl Sanders Highway
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15
Take the exit slight right toward I 520 East, GA 232
1107 ft · 27 sec
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16
Keep slight left to continue on GA 232
2266 ft · 55 sec
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17
Keep slight right to continue on GA 232
1639 ft · 40 sec
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18
Merge slight left onto Bobby Jones Expressway
1.3 mi · 2 min · Bobby Jones Expressway
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19
Turn right onto Washington Road
1.1 mi · 2 min · Washington Road
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20
Turn left onto Riverwatch Parkway
148 m · 12 sec · Riverwatch Parkway
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21
Continue on Riverwatch Parkway
150 m · 18 sec · Riverwatch Parkway
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22
Continue on Riverwatch Parkway
24 m · 8 sec · Riverwatch Parkway
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23
Arrive at your destination
0 m · 1 sec · Riverwatch Parkway
Car Route Details
A richer read on the saved driving route between Marietta and Martinez.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Carl Sanders Highway
Continue on Carl Sanders Highway
81.8 mi · 01h 28m
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.
Mostly Cloudy leaving Marietta and Partly Sunny near Martinez.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marietta to Martinez?
The road trip is about 162 miles (260.7 km) and usually takes 03h 04m 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?
Smyrna is a useful midpoint, sitting about 80.8 miles from Marietta and 81.2 miles from Martinez.
How much longer is the road route than the straight-line distance?
The direct path is about 145.3 miles (233.9 km), while the road route adds roughly 16.7 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 EST. If you want a more comfortable same-day return, try to leave by 10:50 AM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.26 one way or $40.52 round trip. Estimated CO2 is about 50.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Marietta and Partly Sunny near Martinez.
Stop Ideas Near Smyrna
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 Smyrna.
Gainesville
Peachtree Station
Toccoa
Flight Path Map
This map shows the direct air route between Marietta and Martinez. Straight-line distance: 145.31 mi (233.85 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 Martinez
Martinez is a place in Georgia, United States.
| Population | 0 |
| Coordinates | 33.5173600, -82.0756700 |
| Altitude | 110 |
| Country | United States |
End: Martinez (-82.07567, 33.51736)
Estimated Travel Time
Distance: 261 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 23m |
| 40 mph (64.37 km/h) | 04h 03m |
| 50 mph (80.47 km/h) | 03h 14m |
| 60 mph (96.56 km/h) | 02h 42m |
| 70 mph (112.65 km/h) | 02h 18m |
| 80 mph (129 km/h) | 02h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.54 | $20.26 | $40.52 |
| Mid-grade | $4.04 | $23.10 | $46.19 |
| Premium | $4.48 | $25.61 | $51.23 |
| Diesel | $5.66 | $32.38 | $64.75 |
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 · Nov 06, 2026