How far is Marion, AL from Decatur, AL?
The driving distance from Marion, AL to Decatur, AL is about 160.1 miles (257.6 km), with a travel time of about 02h 34m by car.
- The straight-line flight distance is about 137.7 miles (221.6 km).
- For a round trip, plan for roughly 05h 09m 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 02h 34m.
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.
The most populous city in Alabama.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Marion and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marion and Decatur.
-
1
Start on Jefferson Street
730 ft · 31 sec · Jefferson Street
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2
Continue on Martin Luther King Parkway
1.5 mi · 3 min · Martin Luther King Parkway
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3
Turn left onto State Route 5
23.4 mi · 32 min · State Route 5
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4
Enter the roundabout and take exit 2 toward State Route 5
35 m · 4 sec · State Route 5
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5
Exit the roundabout onto State Route 5
18.8 mi · 26 min · State Route 5
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6
Turn slight right
3 mi · 5 min
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7
Take the ramp right
27.5 mi · 30 min
-
8
Take the exit slight left toward I 65 North: Huntsville
45 m · 4 sec
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9
Continue on I 65 North: Huntsville
1027 ft · 25 sec
-
10
Merge slight right
72.1 mi · 1 hr 18 min
-
11
Take the exit slight right toward 67: Decatur, Priceville, Somerville
2021 ft · 51 sec
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12
Turn left onto Point Mallard Parkway Southeast
4.5 mi · 7 min · Point Mallard Parkway Southeast
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13
Turn right onto 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
-
14
Continue on 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
-
15
Turn left onto Lee Street Northeast
1085 ft · 38 sec · Lee Street Northeast
-
16
Turn right
25 m · 6 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Marion and Decatur.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 65 North
Merge slight right
72.1 mi · 01h 18m
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 Marion and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marion to Decatur?
The road trip is about 160.1 miles (257.6 km) and usually takes 02h 34m 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?
Birmingham is a useful midpoint, sitting about 77.5 miles from Marion and 82.5 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 137.7 miles (221.6 km), while the road route adds roughly 22.4 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 CDT. If you want a more comfortable same-day return, try to leave by 1:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.40 one way or $42.79 round trip. Estimated CO2 is about 50.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Marion and Sunny near Decatur.
Stop Ideas Near Birmingham
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 Birmingham.
Birmingham
Brent, AL
Tuscaloosa
Anniston
Flight Path Map
This map shows the direct air route between Marion and Decatur. Straight-line distance: 137.72 mi (221.64 km).
#1 Marion
County seat of Perry County, Alabama
| Population | 3,049 |
| Coordinates | 32.6323500, -87.3191700 |
| Altitude | 114 |
| Country | United States |
#2 Decatur
The most populous city in Morgan County, Alabama.
| Population | 54,381 |
| Coordinates | 34.6059300, -86.9833400 |
| Altitude | 171 |
| Country | United States |
End: (-86.983514, 34.605804)
Estimated Travel Time
Distance: 258 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 19m |
| 40 mph (64.37 km/h) | 04h 00m |
| 50 mph (80.47 km/h) | 03h 12m |
| 60 mph (96.56 km/h) | 02h 40m |
| 70 mph (112.65 km/h) | 02h 17m |
| 80 mph (129 km/h) | 01h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $21.40 | $42.79 |
| Mid-grade | $4.26 | $24.06 | $48.13 |
| Premium | $4.63 | $26.13 | $52.26 |
| Diesel | $5.42 | $30.59 | $61.19 |
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 Alabama · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.