How far is Oak Ridge, TN from Knoxville, TN?
The driving distance from Oak Ridge, TN to Knoxville, TN is about 24.5 miles (39.4 km), with a travel time of about 00h 27m by car.
- The straight-line flight distance is about 19.8 miles (31.9 km).
- For a round trip, plan for roughly 00h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
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 27m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
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.
Mostly Sunny
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Oak Ridge and Knoxville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Oak Ridge and Knoxville.
-
1
Start on North Illinois Avenue
2 mi · 3 min · North Illinois Avenue
-
2
Continue on Oak Ridge Highway
4.2 mi · 5 min · Oak Ridge Highway
-
3
Turn straight onto Pellissippi Parkway
5.2 mi · 6 min · Pellissippi Parkway
-
4
Take the exit slight right toward I 40, I 75: Nashville, Knoxville, Chattanooga
1058 ft · 26 sec
-
5
Keep slight left to continue on I 40 East, I 75 North: Knoxville
1.3 mi · 3 min
-
6
Merge slight left
7.6 mi · 9 min
-
7
Keep slight left
2.9 mi · 4 min
-
8
Take the exit slight right toward Convention Center, East Tennessee History Center, Museum of Art
2116 ft · 28 sec
-
9
Keep slight left to continue on Convention Center, East Tennessee History Center, Museum of Art
2403 ft · 56 sec
-
10
Continue on Henley Street
1238 ft · 27 sec · Henley Street
-
11
Continue on Henley Street
78 m · 12 sec · Henley Street
-
12
Arrive at your destination
0 m · 1 sec · Henley Street
Car Route Details
A richer read on the saved driving route between Oak Ridge and Knoxville.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 40 East
Merge slight left
7.62 mi · 00h 09m
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.
Mostly Sunny leaving Oak Ridge and Partly Cloudy near Knoxville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Oak Ridge to Knoxville?
The road trip is about 24.5 miles (39.4 km) and usually takes 00h 27m 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?
Farragut is a useful midpoint, sitting about 12.2 miles from Oak Ridge and 12.2 miles from Knoxville.
How much longer is the road route than the straight-line distance?
The direct path is about 19.8 miles (31.9 km), while the road route adds roughly 4.7 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 EDT. If you want a more comfortable same-day return, try to leave by 7:36 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.24 one way or $6.49 round trip. Estimated CO2 is about 7.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Oak Ridge and Partly Cloudy near Knoxville.
Flight Path Map
This map shows the direct air route between Oak Ridge and Knoxville. Straight-line distance: 19.81 mi (31.88 km).
#1 Oak Ridge
City in Tennessee, United States
| Population | 29,340 |
| Coordinates | 36.0103600, -84.2696400 |
| Altitude | 259 |
| Country | United States |
#2 Knoxville
The most populous city in Tennessee.
| Population | 190,223 |
| Coordinates | 35.9606400, -83.9207400 |
| Altitude | 276 |
| Country | United States |
End: US 11 (-83.920795, 35.960617)
Estimated Travel Time
Distance: 39 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 48m |
| 40 mph (64.37 km/h) | 00h 36m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.24 | $6.49 |
| Mid-grade | $4.25 | $3.66 | $7.32 |
| Premium | $4.65 | $4.00 | $8.00 |
| Diesel | $5.30 | $4.56 | $9.12 |
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 · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.