How far is Smyrna, TN from Oak Ridge, TN?
The driving distance from Smyrna, TN to Oak Ridge, TN is about 276.9 miles (445.6 km), with a travel time of about 05h 19m by car.
- The straight-line flight distance is about 227.1 miles (365.5 km).
- For a round trip, plan for roughly 10h 39m 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 05h 19m.
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 Wilson County, Tennessee, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Smyrna and Oak Ridge.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smyrna and Oak Ridge.
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1
Start on Buck Ditch Road
18 m · 5 sec · Buck Ditch Road
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2
Turn left onto Smyrna Road
2 mi · 8 min · Smyrna Road
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3
At the end of the road, turn right onto Buena Vista Road
2.5 mi · 6 min · Buena Vista Road
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4
At the end of the road, turn left
4.1 mi · 7 min
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5
At the end of the road, turn right onto Broad Street
2.4 mi · 4 min · Broad Street
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6
Continue on Broadway of America
5.4 mi · 8 min · Broadway of America
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7
Turn right
1.6 mi · 2 min
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8
Turn right
13.8 mi · 16 min
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9
Take the exit slight left
1318 ft · 32 sec
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10
Merge slight left
81.4 mi · 1 hr 28 min
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11
Keep slight right to continue on I 40 East, I 65 South: Knoxville, Huntsville
1305 ft · 25 sec
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12
Merge slight left onto Downtown Loop
2.4 mi · 3 min · Downtown Loop
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13
Continue on Downtown Loop
2764 ft · 43 sec · Downtown Loop
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14
Keep slight right to continue on I 40 East, I 24 East: Knoxville, Chattanooga
137 mi · 2 hr 29 min
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15
Take the exit slight right toward US 27: Harriman, Rockwood
1106 ft · 27 sec
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16
Keep slight right
102 m · 8 sec
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17
Merge slight left
6.8 mi · 8 min
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18
Keep slight right to continue on Harriman Highway
9.6 mi · 11 min · Harriman Highway
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19
Continue on West Tri County Boulevard
5.6 mi · 7 min · West Tri County Boulevard
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20
Continue on North Illinois Avenue
1 mi · 1 min · North Illinois Avenue
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21
Arrive at your destination
0 m · 1 sec · North Illinois Avenue
Car Route Details
A richer read on the saved driving route between Smyrna and Oak Ridge.
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 40 East
Keep slight right to continue on I 40 East, I 24 East: Knoxville, Chattanooga
137 mi · 02h 29m
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.
Sunny leaving Smyrna and Mostly Sunny near Oak Ridge.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smyrna to Oak Ridge?
The road trip is about 276.9 miles (445.6 km) and usually takes 05h 19m 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?
Lebanon is a useful midpoint, sitting about 138.1 miles from Smyrna and 138.8 miles from Oak Ridge.
How much longer is the road route than the straight-line distance?
The direct path is about 227.1 miles (365.5 km), while the road route adds roughly 49.8 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 6:20 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.14 one way or $76.28 round trip. Estimated CO2 is about 86.8 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Smyrna and Oak Ridge, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Smyrna and Mostly Sunny near Oak Ridge.
Stop Ideas Near Lebanon
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 Lebanon.
Nashville, TN
Clarksville, TN
Flight Path Map
This map shows the direct air route between Smyrna and Oak Ridge. Straight-line distance: 227.12 mi (365.52 km).
#1 Smyrna
Town in Rutherford County, Tennessee, United States
| Population | 53,185 |
| Coordinates | 35.9564500, -88.3317100 |
| Altitude | 157 |
| Country | United States |
#2 Oak Ridge
City in Tennessee, United States
| Population | 29,340 |
| Coordinates | 36.0103600, -84.2696400 |
| Altitude | 259 |
| Country | United States |
End: Oak Ridge (-84.26964, 36.01036)
Estimated Travel Time
Distance: 446 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 13m |
| 40 mph (64.37 km/h) | 06h 55m |
| 50 mph (80.47 km/h) | 05h 32m |
| 60 mph (96.56 km/h) | 04h 36m |
| 70 mph (112.65 km/h) | 03h 57m |
| 80 mph (129 km/h) | 03h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.90 | $38.14 | $76.28 |
| Mid-grade | $4.37 | $42.65 | $85.29 |
| Premium | $4.77 | $46.64 | $93.28 |
| Diesel | $6.00 | $58.64 | $117.28 |
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 Tennessee · Oct 15, 2026