How far is Gray, LA from Marrero, LA?
The driving distance from Gray, LA to Marrero, LA is about 50.8 miles (81.8 km), with a travel time of about 00h 58m by car.
- The straight-line flight distance is about 43.4 miles (69.9 km).
- For a round trip, plan for roughly 01h 57m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
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 00h 58m.
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.
Census designated place
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 Gray and Marrero.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gray and Marrero.
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1
Start on Bayou Blue Road
86 m · 11 sec · Bayou Blue Road
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2
Turn left onto West Main Street
1.3 mi · 2 min · West Main Street
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3
Turn left
108 m · 15 sec
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4
Take the ramp straight
1414 ft · 34 sec
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5
Merge slight left onto Raceland-M C Express
44.1 mi · 58 min · Raceland-M C Express
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6
Take the exit slight right toward US 90 Business
4 mi · 6 min · Westbank Expressway
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7
Keep slight left to continue on Westbank Expressway
1.4 km · 1 min · Westbank Expressway
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8
Take the exit slight right toward LA 45: Barataria Boulevard
1333 ft · 29 sec
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9
Turn straight onto Westbank Expressway
588 ft · 14 sec · Westbank Expressway
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10
Turn left onto Barataria Boulevard
1909 ft · 55 sec · Barataria Boulevard
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11
Arrive at your destination
0 m · 1 sec · Barataria Boulevard
Car Route Details
A richer read on the saved driving route between Gray and Marrero.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Raceland-M C Express
Merge slight left onto Raceland-M C Express
44.1 mi · 00h 58m
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.
Mostly Sunny leaving Gray 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 Gray to Marrero?
The road trip is about 50.8 miles (81.8 km) and usually takes 00h 58m 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?
Des Allemands is a useful midpoint, sitting about 25.7 miles from Gray and 25.2 miles from Marrero.
How much longer is the road route than the straight-line distance?
The direct path is about 43.4 miles (69.9 km), while the road route adds roughly 7.4 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 CST. If you want a more comfortable same-day return, try to leave by 4:32 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.51 one way or $13.02 round trip. Estimated CO2 is about 15.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gray and Mostly Sunny near Marrero.
Stop Ideas Near Des Allemands
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 Des Allemands.
Schriever
New Orleans Union Passenger Terminal
Hammond
Slidell
Flight Path Map
This map shows the direct air route between Gray and Marrero. Straight-line distance: 43.43 mi (69.9 km).
#1 Gray
Gray is a place in Louisiana, United States.
| Population | 0 |
| Coordinates | 29.6977100, -90.7864800 |
| Altitude | 3 |
| 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: 82 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 41m |
| 40 mph (64.37 km/h) | 01h 16m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.64 | $6.51 | $13.02 |
| Mid-grade | $4.14 | $7.41 | $14.81 |
| Premium | $4.53 | $8.11 | $16.23 |
| Diesel | $5.70 | $10.21 | $20.42 |
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 · Nov 07, 2026