How far is Cullman, AL from Decatur, AL?
The driving distance from Cullman, AL to Decatur, AL is about 40.3 miles (64.8 km), with a travel time of about 00h 38m by car.
- The straight-line flight distance is about 30.8 miles (49.6 km).
- For a round trip, plan for roughly 01h 17m 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 38m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Cullman and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cullman and Decatur.
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1
Start on 2nd Avenue Southwest
15 m · 9 sec · 2nd Avenue Southwest
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2
Turn left onto 3rd Street Southwest
1517 ft · 33 sec · 3rd Street Southwest
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3
Continue on 4th Street Southwest
1.5 mi · 3 min · 4th Street Southwest
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4
Take the ramp right
980 ft · 24 sec
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5
Merge slight left onto Heroes Highway
25.2 mi · 27 min · Heroes Highway
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6
Take the exit slight right toward 67: Decatur, Priceville, Somerville
2021 ft · 51 sec
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7
Turn left onto Point Mallard Parkway Southeast
4.5 mi · 7 min · Point Mallard Parkway Southeast
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8
Turn right onto 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
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9
Continue on 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
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10
Turn left onto Lee Street Northeast
1085 ft · 38 sec · Lee Street Northeast
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11
Turn right
25 m · 6 sec
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12
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Cullman 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.
Heroes Highway
Merge slight left onto Heroes Highway
25.2 mi · 00h 27m
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.
Sunny leaving Cullman and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cullman to Decatur?
The road trip is about 40.3 miles (64.8 km) and usually takes 00h 38m 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?
Falkville is a useful midpoint, sitting about 17.8 miles from Cullman and 22.5 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 30.8 miles (49.6 km), while the road route adds roughly 9.5 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 7:12 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.38 one way or $10.76 round trip. Estimated CO2 is about 12.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Cullman and Sunny near Decatur.
Stop Ideas Near Falkville
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 Falkville.
Birmingham
Flight Path Map
This map shows the direct air route between Cullman and Decatur. Straight-line distance: 30.83 mi (49.62 km).
#1 Cullman
City in Cullman County, Alabama, United States
| Population | 16,564 |
| Coordinates | 34.1748200, -86.8436100 |
| Altitude | 242 |
| 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: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 20m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $5.38 | $10.76 |
| Mid-grade | $4.26 | $6.05 | $12.10 |
| Premium | $4.63 | $6.57 | $13.14 |
| Diesel | $5.42 | $7.69 | $15.38 |
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.