How far is Gretna, LA from Marrero, LA?
The driving distance from Gretna, LA to Marrero, LA is about 3.6 miles (5.8 km), with a travel time of about 00h 07m by car.
- The straight-line flight distance is about 3 miles (4.8 km).
- For a round trip, plan for roughly 00h 15m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
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 07m.
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.
Unincorporated suburban community and census-designated place in Jefferson Parish, Louisiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Gretna and Marrero.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gretna and Marrero.
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1
Start on Richard Street
52 m · 13 sec · Richard Street
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2
Turn left onto 11th Street
20 m · 5 sec · 11th Street
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3
Turn right
759 ft · 36 sec
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4
At the end of the road, turn right onto Westbank Expressway
1661 ft · 35 sec · Westbank Expressway
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5
Take the ramp slight left toward US 90 Business West
1200 ft · 29 sec
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6
Merge slight left onto Westbank Expressway
2.1 mi · 3 min · Westbank Expressway
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7
Take the exit slight right toward LA 45: Barataria Boulevard
1395 ft · 30 sec
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8
Turn straight onto Westbank Expressway
1403 ft · 36 sec · Westbank Expressway
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9
Turn right onto Barataria Boulevard
1612 ft · 39 sec · Barataria Boulevard
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10
Arrive at your destination
0 m · 1 sec · Barataria Boulevard
Car Route Details
A richer read on the saved driving route between Gretna and Marrero.
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.
Westbank Expressway
Merge slight left onto Westbank Expressway
2.09 mi · 00h 03m
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.
Mostly Sunny leaving Gretna and Mostly Sunny near Marrero.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gretna to Marrero?
The road trip is about 3.6 miles (5.8 km) and usually takes 00h 07m 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?
Terrytown is a useful midpoint, sitting about 1.8 miles from Gretna and 1.8 miles from Marrero.
How much longer is the road route than the straight-line distance?
The direct path is about 3 miles (4.8 km), while the road route adds roughly 0.6 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 CDT. If you want a more comfortable same-day return, try to leave by 8:14 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $0.49 one way or $0.98 round trip. Estimated CO2 is about 1.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gretna and Mostly Sunny near Marrero.
Stop Ideas Near Terrytown
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 Terrytown.
New Orleans Union Passenger Terminal
Slidell
Picayune
Schriever
Flight Path Map
This map shows the direct air route between Gretna and Marrero. Straight-line distance: 2.97 mi (4.78 km).
#1 Gretna
Suburb city of New Orleans
| Population | 17,615 |
| Coordinates | 29.9146500, -90.0539600 |
| Altitude | 0 |
| Country | United States |
#2 Marrero
CDP in Jefferson Parish, Louisiana
| Population | 33,141 |
| Coordinates | 29.8993700, -90.1003500 |
| Altitude | 1 |
| Country | United States |
End: Barataria Boulevard (-90.100445, 29.899359)
Estimated Travel Time
Distance: 6 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 07m |
| 40 mph (64.37 km/h) | 00h 05m |
| 50 mph (80.47 km/h) | 00h 04m |
| 60 mph (96.56 km/h) | 00h 03m |
| 70 mph (112.65 km/h) | 00h 03m |
| 80 mph (129 km/h) | 00h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $0.49 | $0.98 |
| Mid-grade | $4.26 | $0.55 | $1.11 |
| Premium | $4.63 | $0.60 | $1.20 |
| Diesel | $5.42 | $0.70 | $1.41 |
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 Louisiana · Apr 10, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.