Knoxville to Sweetwater is 260.8 miles and takes about 4h 52m via I 40, with a fuel budget near $40 and enough daylight to finish in a day. This drive stays within the Southeast region, entirely within Tennessee, making it a straightforward trip. With 80% of the drive on highways, expect a generally efficient pace. This route is best suited for a single day of travel, offering a practical way to get from one point to another without extensive overnight planning.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
130.4 miles from Knoxville, TN
A natural place for your longest stop of the day
, about 2h 23m into the drive
.
Main Roads
Road
Distance
Duration
I 40
151 mi
2h 44m
Tennessee National Guard Parkway
44.6 mi
47m
Bear Creek Pike
13.8 mi
15m
Hampshire Pike
13.3 mi
15m
Columbia Highway
13 mi
16m
I 65
11.5 mi
12m
Waynesboro Highway
5.3 mi
7m
East Main Street
2 mi
2m
Longest stretch:
I 40
— 151 mi, about 2h 44m
Turn-by-Turn Driving Directions
Step-by-step road directions between Knoxville, TN and Sweetwater, TN.
1
Start on US 441
0.2 mi·19 sec·Henley Street
2
Continue on US 441
0.1 mi·14 sec·Henley Street
3
Turn slight left onto SR 62
0.7 mi·1 min·Western Avenue
Use the straight lane.
4
Turn left onto Ailor Avenue
0.4 mi·43 sec·Ailor Avenue
5
Take the ramp
0.3 mi·39 sec
Toward I 40 West, I 75 South
6
Merge onto I 40
18 mi·21 min·I 40
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 40
133 mi·2 hr 22 min·I 40
Toward NashvilleUse the straight / slight right lanes.
8
Take the exit
1.1 mi·1 min
Exit 235Toward I 840 West: Memphis, MurfreesboroUse the straight / slight right lanes.
9
Continue on I 840
45 mi·47 min·Tennessee National Guard Parkway
Use the straight / slight right lanes.
10
Take the exit
0.3 mi·22 sec
Exit 31Toward I 65: Nashville, HuntsvilleUse the straight / slight right lanes.
11
Keep slight left at fork
1.6 mi·2 min
Exit 31AToward I 65 South: HuntsvilleUse the slight left / slight right lanes.
12
Merge onto I 65
11 mi·12 min·I 65
Use the straight / slight right lanes.
13
Take the exit
0.2 mi·22 sec
Exit 46Toward 412, 99: Columbia, Chapel Hill
14
Keep slight right at fork
162 ft·4 sec
Exit 46Toward 412: Columbia
15
Turn right onto US 412
14 mi·15 min·Bear Creek Pike
16
Turn left onto US 412
0.3 mi·41 sec·US 412
17
Turn left onto US 412
13 mi·15 min·Hampshire Pike
18
Continue on US 412
13 mi·16 min·Columbia Highway
19
Continue on US 412
2.0 mi·2 min·East Main Street
20
Turn left onto SR 20; SR 48
0.8 mi·1 min·South Park Street
21
Continue on TN 48
5.3 mi·7 min·Waynesboro Highway
22
Turn straight onto Trace Creek Road
0.1 mi·26 sec·Trace Creek Road
23
Arrive at destination
Trace Creek Road
Trip Plan
Given the 4h 52m estimated duration, leaving Knoxville in the morning allows ample time to reach Sweetwater before evening. The route has one recommended stop, which could be a good point to refuel and stretch your legs, especially since the longest continuous stretch on I 40 is 151 miles. Keep an eye on your fuel gauge as you approach Sweetwater, as the $40 estimated fuel cost is based on average prices. Since this is a single-day trip, you have flexibility to depart earlier or later based on your schedule.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 130.4 miles from Knoxville, TN, or about 2h 23m into the drive.
The longest continuous stretch on this route runs about 151 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 57 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 130.4 miles or 2h 23m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 53m
Traffic, exits, and arrival timing usually matter more near Sweetwater, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Knoxville, TN so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Knoxville, TN
This is one driving day of about 260.8 miles and 4h 52m.
Your first comfortable stop window is around 57 miles from Knoxville, TN.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 40 for about 151 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 14
5 decision points cluster between mile 20.1 and 212.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
20.1 mi into trip|~24m in|I 40
Keep slight right at fork onto I 40 toward Nashville
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Nashville
8
152.8 mi into trip|~2h 47m in
Take the exit toward I 840 West: Memphis, Murfreesboro
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 235
Toward I 840 West: Memphis, Murfreesboro
8
198.5 mi into trip|~3h 36m in
Take the exit toward I 65: Nashville, Huntsville
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 31
Toward I 65: Nashville, Huntsville
8
198.9 mi into trip|~3h 36m in
Keep slight left at fork toward I 65 South: Huntsville
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Exit 31A
Toward I 65 South: Huntsville
7
212.2 mi into trip|~3h 51m in
Keep slight right at fork toward 412: Columbia
Highway fork - watch signs carefully
Exit 46
Toward 412: Columbia
Fuel & Cost
Regular Gas
$43.36 one way
$86.72 round trip
$4.22/gal25.4 MPG avg91 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.60
$47.23
$94.46
premium
$5.18
$53.22
$106.44
diesel
$5.35
$54.93
$109.86
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$43
Meals
$25–$50
Total
$68–$93
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 91.2 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $27 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
78.2
0
$27.38
$12.52
Efficient EV
65.2
0
$22.82
$10.43
EV Truck/SUV
104.3
1
$36.51
$16.69
Gas CO2
91 kg
EV CO2
31 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jun 1, 2026
Origin
Knoxville, TN
Afternoon
in Knoxville on Wednesday
Local time
4:09 PM
EDT
Current temp
64°F
Mostly Cloudy
0 mph8% chanceLive forecast
Destination
Sweetwater, TN
Afternoon
in Sweetwater on Wednesday
Local time
3:09 PM
CDT
Current temp
65°F
Areas Of Fog
0 mph7% chanceLive forecast
68°F
Lebanon, TN
130 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 52m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Stones River National Battlefield
National Battlefield
The Battle of Stones River began on the last day of 1862 and became one of the bloodiest conflicts of the Civil War. The battle produced important military and political gains for the Union, and it ch...
5 mi from route
~12 min detour
Free
near mile 179.9
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is predominantly highway driving, with 80% of the 260.8 miles on major roads like I 40. You'll encounter a significant stretch of 151 miles on I 40, which means you'll be in highway cruising mode for a considerable portion. The transition to surface roads like Bear Creek Pike will occur later in the drive, offering a change of pace. Expect a consistent flow of traffic and exits typical of interstates for most of the trip.
80% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 151 mi on I 40.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 40 and Tennessee National Guard Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 20.1 miles in near I 40.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 260.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 20.1 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 152.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 198.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,885 ft570 ft
Total Climb
1,490 ft
Total Descent
1,675 ft
Highest Point
1,885 ft
~74.5 mi in
Elevation Range
1,315 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Knoxville, TN and Sweetwater, TN, road signs point toward Nashville, Murfreesboro, Huntsville, 99: Columbia, Chapel Hill and 412: Columbia.
Knoxville, in Knox County, is the third-largest city in Tennessee. It is the home of the University of Tennessee's primary campus (UTK) and site of the 1982 World's Fair.
Top landmarks
•Sunsphere — observation tower in Knoxville, Tennessee, United States
•Andrew Johnson Building — historic high-rise in Knoxville, Tennessee
•Ayres Hall — historic academic building at the University of Tennessee, USA
Doable as a same-day drive at 4h 52m. Total distance: 260.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 52m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (80%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 151 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 19 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Sweetwater, TN before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 19 rest areas along the route for bathroom stops.
The main spots that need attention: at 20.1 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 152.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 198.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Stones River National Battlefield. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.9 hours each way, an in-and-out day trip would put you behind the wheel for 9.7 hours — manageable with a long break at Sweetwater, TN, but most travelers stay overnight.
