How far is Knoxville, TN from Oak Ridge, TN?
The driving distance from Knoxville, TN to Oak Ridge, TN is about 24.2 miles (39 km), with a travel time of about 00h 31m by car.
- The straight-line flight distance is about 19.8 miles (31.9 km).
- For a round trip, plan for roughly 01h 02m 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 31m.
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.
Partly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Knoxville and Oak Ridge.
Turn-by-Turn Driving Directions
Step-by-step road directions between Knoxville and Oak Ridge.
-
1
Start on Henley Street
1056 ft · 20 sec · Henley Street
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2
Continue on Henley Street
727 ft · 14 sec · Henley Street
-
3
Turn slight left onto Western Avenue
1.1 km · 1 min · Western Avenue
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4
Turn left onto Ailor Avenue
2326 ft · 43 sec · Ailor Avenue
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5
Take the ramp straight toward I 40 West, I 75 South
1637 ft · 40 sec
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6
Merge slight left
9.8 mi · 11 min
-
7
Take the exit slight right toward I 140 East, SR 162 North: Maryville, Oak Ridge
1199 ft · 29 sec
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8
Keep slight right to continue on SR 162 North: Oak Ridge
1.1 mi · 2 min
-
9
Merge slight left onto Pellissippi Parkway
5 mi · 6 min · Pellissippi Parkway
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10
Continue on Oak Ridge Highway
4.3 mi · 5 min · Oak Ridge Highway
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11
Continue on South Illinois Avenue
2 mi · 3 min · South Illinois Avenue
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12
Arrive at your destination
0 m · 1 sec · North Illinois Avenue
Car Route Details
A richer read on the saved driving route between Knoxville and Oak Ridge.
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 West
Merge slight left
9.85 mi · 00h 11m
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.
Partly Cloudy leaving Knoxville 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 Knoxville to Oak Ridge?
The road trip is about 24.2 miles (39 km) and usually takes 00h 31m 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 12.1 miles from Knoxville and 12.1 miles from Oak Ridge.
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 4.4 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 7:28 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 Partly Cloudy around Knoxville and Mostly Sunny near Oak Ridge.
Flight Path Map
This map shows the direct air route between Knoxville and Oak Ridge. Straight-line distance: 19.81 mi (31.88 km).
#1 Knoxville
The most populous city in Tennessee.
| Population | 190,223 |
| Coordinates | 35.9606400, -83.9207400 |
| Altitude | 276 |
| 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: 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.