How far is Decatur, AL from Trinity, AL?
The driving distance from Decatur, AL to Trinity, AL is about 139.1 miles (223.9 km), with a travel time of about 02h 42m by car.
- The straight-line flight distance is about 94.9 miles (152.7 km).
- For a round trip, plan for roughly 05h 24m 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 42m.
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.
Partly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Trinity.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Trinity.
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1
Start on the route
130 m · 37 sec
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2
At the end of the road, turn left onto Ferry Street Northeast
50 m · 9 sec · Ferry Street Northeast
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3
Turn left onto Lee Street Northeast
1583 ft · 53 sec · Lee Street Northeast
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4
At the end of the road, turn right onto 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
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5
Continue on 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
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6
Turn left onto Point Mallard Parkway
4.2 mi · 6 min · Point Mallard Parkway
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7
Take the ramp slight right toward I-65 South: Birmingham
1944 ft · 47 sec
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8
Merge slight left
67.1 mi · 1 hr 12 min
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9
Take the exit slight right toward I 22 West, US 31: Memphis, Fultondale
2715 ft · 38 sec
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10
Keep slight left to continue on I 22 West: Memphis
2666 ft · 38 sec
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11
Keep slight left to continue on Montgomery
1940 ft · 28 sec
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12
Merge slight left
3.9 mi · 5 min
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13
Take the exit slight left toward I 20 East, I 59 North: Atlanta, Gadsden
1037 ft · 25 sec
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14
Merge slight right
5.1 mi · 7 min
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15
Keep slight right to continue on I 20 East: Atlanta
49.6 mi · 55 min
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16
Take the exit slight right toward AL 202: Munford, Coldwater
846 ft · 29 sec
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17
Turn left onto Priebes Mill Road
2430 ft · 46 sec · Priebes Mill Road
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18
Turn right onto Airport Road
3 mi · 5 min · Airport Road
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19
Turn slight right onto Sweetheart Lane
662 ft · 29 sec · Sweetheart Lane
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20
Arrive at your destination
0 m · 1 sec · Sweetheart Lane
Car Route Details
A richer read on the saved driving route between Decatur and Trinity.
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 South
Merge slight left
67.1 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.
Partly Sunny then Slight Chance Showers And Thunderstorms leaving Decatur and Mostly Sunny near Trinity.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Trinity?
The road trip is about 139.1 miles (223.9 km) and usually takes 02h 42m 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 69.6 miles from Decatur and 69.5 miles from Trinity.
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 44.2 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 1:06 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.59 one way or $37.19 round trip. Estimated CO2 is about 43.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Slight Chance Showers And Thunderstorms around Decatur and Mostly Sunny near Trinity.
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 Decatur and Trinity. Straight-line distance: 94.85 mi (152.65 km).
#1 Decatur
The most populous city in Morgan County, Alabama.
| Population | 54,381 |
| Coordinates | 34.6059300, -86.9833400 |
| Altitude | 171 |
| Country | United States |
#2 Trinity
Town in Morgan County, Alabama
| Population | 2,467 |
| Coordinates | 33.5895500, -85.8688500 |
| Altitude | 189 |
| Country | United States |
End: Trinity (-85.86885, 33.58955)
Estimated Travel Time
Distance: 224 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 38m |
| 40 mph (64.37 km/h) | 03h 28m |
| 50 mph (80.47 km/h) | 02h 46m |
| 60 mph (96.56 km/h) | 02h 19m |
| 70 mph (112.65 km/h) | 01h 59m |
| 80 mph (129 km/h) | 01h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $18.59 | $37.19 |
| Mid-grade | $4.26 | $20.91 | $41.82 |
| Premium | $4.63 | $22.71 | $45.42 |
| Diesel | $5.42 | $26.59 | $53.18 |
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.