How far is Trinity, AL from Decatur, AL?
The driving distance from Trinity, AL to Decatur, AL is about 144 miles (231.7 km), with a travel time of about 02h 13m by car.
- The straight-line flight distance is about 94.9 miles (152.7 km).
- For a round trip, plan for roughly 04h 27m 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 13m.
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.
City in Jefferson County, Alabama, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Trinity and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Trinity and Decatur.
-
1
Start on Sweetheart Lane
662 ft · 29 sec · Sweetheart Lane
-
2
Turn slight left onto Airport Road
3 mi · 5 min · Airport Road
-
3
Turn left onto Donald G. Holmes Bypass
1605 ft · 28 sec · Donald G. Holmes Bypass
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4
Take the ramp right
1160 ft · 28 sec
-
5
Merge slight left
51.1 mi · 57 min
-
6
Take the exit slight right toward AL 79: Tallapoosa Street
1644 ft · 40 sec
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7
Keep slight right to continue on AL 79 North: Tallapoosa Street North, Tarrant
99 m · 8 sec
-
8
Continue on Tallapoosa Street
1616 ft · 36 sec · Tallapoosa Street
-
9
Continue on Vanderbilt Road
1.4 mi · 3 min · Vanderbilt Road
-
10
Turn left onto Cedar Street
1936 ft · 57 sec · Cedar Street
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11
At the end of the road, turn right onto Erwin Dairy Road
1.5 km · 3 min · Erwin Dairy Road
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12
Continue on 47th Avenue North
1 km · 2 min · 47th Avenue North
-
13
Turn sharp right onto Decatur Highway
1.5 km · 2 min · Decatur Highway
-
14
Take the ramp slight right toward I 65 North: Huntsville
2197 ft · 42 sec
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15
Merge slight left
67 mi · 1 hr 12 min
-
16
Take the exit slight right toward 67: Decatur, Priceville, Somerville
2021 ft · 51 sec
-
17
Turn left onto Point Mallard Parkway Southeast
4.5 mi · 7 min · Point Mallard Parkway Southeast
-
18
Turn right onto 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
-
19
Continue on 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
-
20
Turn left onto Lee Street Northeast
1085 ft · 38 sec · Lee Street Northeast
-
21
Turn right
25 m · 6 sec
-
22
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Trinity and Decatur.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 65 North
Merge slight left
67 mi · 01h 12m
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 Trinity and Partly Sunny then Slight Chance Showers And Thunderstorms near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Trinity to Decatur?
The road trip is about 144 miles (231.7 km) and usually takes 02h 13m 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?
Gardendale is a useful midpoint, sitting about 67.7 miles from Trinity and 76.3 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 94.9 miles (152.7 km), while the road route adds roughly 49.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:02 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.24 one way or $38.48 round trip. Estimated CO2 is about 45.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Trinity and Partly Sunny then Slight Chance Showers And Thunderstorms near Decatur.
Stop Ideas Near Gardendale
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Adamsville City Hall
Trussville City Hall
Mountain Brook Municipal Court
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Gardendale.
Birmingham
Brent, AL
Tuscaloosa
Anniston
Flight Path Map
This map shows the direct air route between Trinity and Decatur. Straight-line distance: 94.85 mi (152.65 km).
#1 Trinity
Town in Morgan County, Alabama
| Population | 2,467 |
| Coordinates | 33.5895500, -85.8688500 |
| Altitude | 189 |
| 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: 232 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 47m |
| 40 mph (64.37 km/h) | 03h 35m |
| 50 mph (80.47 km/h) | 02h 52m |
| 60 mph (96.56 km/h) | 02h 23m |
| 70 mph (112.65 km/h) | 02h 03m |
| 80 mph (129 km/h) | 01h 47m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $19.24 | $38.48 |
| Mid-grade | $4.26 | $21.64 | $43.27 |
| Premium | $4.63 | $23.50 | $46.99 |
| Diesel | $5.42 | $27.51 | $55.02 |
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 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.