How far is Demopolis, AL from Decatur, AL?
The driving distance from Demopolis, AL to Decatur, AL is about 195.5 miles (314.7 km), with a travel time of about 03h 05m by car.
- The straight-line flight distance is about 152.4 miles (245.3 km).
- For a round trip, plan for roughly 06h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 05m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Jefferson County, Alabama, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Demopolis and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Demopolis and Decatur.
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1
Start on North Strawberry Avenue
86 m · 18 sec · North Strawberry Avenue
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2
Turn left onto East Capitol Street
113 m · 9 sec · East Capitol Street
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3
Turn right
24.3 mi · 34 min
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4
Turn right onto 1st Avenue
601 ft · 27 sec · 1st Avenue
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5
Turn right onto Tuscaloosa Street
4.6 mi · 6 min · Tuscaloosa Street
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6
Turn left onto M L King Highway
1.2 mi · 3 min · M L King Highway
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7
Take the ramp right
1148 ft · 28 sec
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8
Merge slight left
79 mi · 1 hr 25 min
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9
Take the exit slight left toward I 65 North: Huntsville
45 m · 4 sec
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10
Continue on I 65 North: Huntsville
1027 ft · 25 sec
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11
Merge slight right
72.1 mi · 1 hr 18 min
-
12
Take the exit slight right toward 67: Decatur, Priceville, Somerville
2021 ft · 51 sec
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13
Turn left onto Point Mallard Parkway Southeast
4.5 mi · 7 min · Point Mallard Parkway Southeast
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14
Turn right onto 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
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15
Continue on 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
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16
Turn left onto Lee Street Northeast
1085 ft · 38 sec · Lee Street Northeast
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17
Turn right
25 m · 6 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Demopolis 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.
M L King Highway
Merge slight left
79 mi · 01h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny leaving Demopolis and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Demopolis to Decatur?
The road trip is about 195.5 miles (314.7 km) and usually takes 03h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Bessemer is a useful midpoint, sitting about 95.1 miles from Demopolis and 100.4 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 152.4 miles (245.3 km), while the road route adds roughly 43.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.13 one way or $52.26 round trip. Estimated CO2 is about 61.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Demopolis and Sunny near Decatur.
Stop Ideas Near Bessemer
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Adamsville City Hall
Helena City Hall
Hoover Police Department (City Hall)
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Bessemer.
Birmingham
Brent, AL
Tuscaloosa
Marion, AL
Flight Path Map
This map shows the direct air route between Demopolis and Decatur. Straight-line distance: 152.42 mi (245.29 km).
#1 Demopolis
City in Alabama
| Population | 6,539 |
| Coordinates | 32.5176400, -87.8364000 |
| Altitude | 37 |
| 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: 315 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 30m |
| 40 mph (64.37 km/h) | 04h 53m |
| 50 mph (80.47 km/h) | 03h 54m |
| 60 mph (96.56 km/h) | 03h 15m |
| 70 mph (112.65 km/h) | 02h 47m |
| 80 mph (129 km/h) | 02h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $26.13 | $52.26 |
| Mid-grade | $4.26 | $29.39 | $58.77 |
| Premium | $4.63 | $31.91 | $63.83 |
| Diesel | $5.42 | $37.36 | $74.73 |
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.