How far is Baton Rouge, LA from Donaldsonville, LA?
The driving distance from Baton Rouge, LA to Donaldsonville, LA is about 34.1 miles (54.8 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 26.3 miles (42.3 km).
- For a round trip, plan for roughly 01h 32m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 46m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Louisiana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Baton Rouge and Donaldsonville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Baton Rouge and Donaldsonville.
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1
Start on Government Street
92 m · 11 sec · Government Street
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2
Turn right onto Saint Ferdinand Street
631 ft · 17 sec · Saint Ferdinand Street
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3
Take the ramp slight right
1222 ft · 30 sec
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4
Merge slight left onto Horace Wilkinson Bridge
1.1 mi · 1 min · Horace Wilkinson Bridge
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5
Take the exit slight right toward LA 1 North, LA 1 South: Port Allen, Plaquemine
927 ft · 23 sec
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6
Keep slight left to continue on LA 1 South: Plaquemine
742 ft · 25 sec
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7
Keep slight left to continue on LA 1 South: Plaquemine
963 ft · 33 sec
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8
Merge slight left onto Highway 1 South
11.5 mi · 17 min · Highway 1 South
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9
Turn slight right onto Eden Street
1.1 mi · 3 min · Eden Street
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10
Continue on Highway 1
18.5 mi · 22 min · Highway 1
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11
Continue on West 10th Street
1.6 km · 1 min · West 10th Street
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12
Arrive at your destination
0 m · 1 sec · West 10th Street
Car Route Details
A richer read on the saved driving route between Baton Rouge and Donaldsonville.
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.
Highway 1
Continue on Highway 1
18.5 mi · 00h 22m
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.
Partly Sunny leaving Baton Rouge and Partly Sunny near Donaldsonville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Baton Rouge to Donaldsonville?
The road trip is about 34.1 miles (54.8 km) and usually takes 00h 46m 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?
Plaquemine is a useful midpoint, sitting about 17 miles from Baton Rouge and 17 miles from Donaldsonville.
How much longer is the road route than the straight-line distance?
The direct path is about 26.3 miles (42.3 km), while the road route adds roughly 7.8 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 CDT. If you want a more comfortable same-day return, try to leave by 4:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.54 one way or $9.09 round trip. Estimated CO2 is about 10.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Baton Rouge and Partly Sunny near Donaldsonville.
Stop Ideas Near Plaquemine
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Plaza
Baton Rouge City Hall
City of Baton Rouge Fire Station 15
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Plaquemine.
Baton Rouge, Louisiana
New Iberia
Schriever
Lafayette
Flight Path Map
This map shows the direct air route between Baton Rouge and Donaldsonville. Straight-line distance: 26.31 mi (42.34 km).
#1 Baton Rouge
The capital of Louisiana.
| Population | 219,052 |
| Coordinates | 30.4433200, -91.1874700 |
| Altitude | 14 |
| Country | United States |
#2 Donaldsonville
City in Louisiana, United States
| Population | 8,638 |
| Coordinates | 30.1011400, -90.9941200 |
| Altitude | 7 |
| Country | United States |
End: Donaldsonville (-90.99412, 30.10114)
Estimated Travel Time
Distance: 55 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 08m |
| 40 mph (64.37 km/h) | 00h 51m |
| 50 mph (80.47 km/h) | 00h 40m |
| 60 mph (96.56 km/h) | 00h 34m |
| 70 mph (112.65 km/h) | 00h 29m |
| 80 mph (129 km/h) | 00h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $4.54 | $9.09 |
| Mid-grade | $4.26 | $5.11 | $10.22 |
| Premium | $4.63 | $5.55 | $11.10 |
| Diesel | $5.42 | $6.50 | $13.00 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.