Connecting Chattanooga and Knoxville, this 111.4-mile trip is an efficient way to traverse the Southeast corridor of Tennessee. You can comfortably complete the journey in about 2 hours and 8 minutes, making it a perfect candidate for a single-day excursion. Because the drive is straightforward, there is no need to plan for an overnight stay unless you want to linger at your destination. Budgeting approximately $17 for fuel should cover your needs for the trip. Since both cities are located within the same state, you will experience a consistent regional feel throughout the drive. This route is ideal for travelers who prioritize speed and reliability over off-the-beaten-path exploration.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
55.7 miles from Chattanooga, TN
A natural place for your longest stop of the day
, about 1h 5m into the drive
.
Main Roads
Road
Distance
Duration
I 75
99.2 mi
1h 49m
I 24
5.8 mi
7m
I 40
2.9 mi
3m
Market Street
1.2 mi
3m
Henley Street
0.3 mi
<1m
West Martin Luther King Boulevard
<0.1 mi
<1m
Longest stretch:
I 75
— 99.2 mi, about 1h 49m
Turn-by-Turn Driving Directions
Step-by-step road directions between Chattanooga, TN and Knoxville, TN.
1
Start on TN 8
80 ft·6 sec·West Martin Luther King Boulevard
2
Turn right onto Market Street
1.2 mi·3 min·Market Street
3
Turn left
0.3 mi·22 sec
4
Merge onto I 24; US 27
5.8 mi·7 min·I 24; US 27
5
Keep slight left at fork
0.9 mi·1 min
Exit 185 BToward I 75 North: KnoxvilleUse the slight left / slight right lanes.
6
Merge onto I 75
99 mi·1 hr 49 min·I 75
Use the straight lane.
7
Keep slight left at fork onto I 40
2.9 mi·3 min·I 40
8
Take the exit
0.4 mi·27 sec
Exit 388Toward Convention Center, East Tennessee History Center, Museum of Art
9
Keep slight left at fork
0.5 mi·56 sec
Exit 388Toward Convention Center, East Tennessee History Center, Museum of Art
10
Continue on US 441
0.2 mi·27 sec·Henley Street
Use the straight lane.
11
Continue on US 441
255 ft·11 sec·Henley Street
12
Arrive at destination
US 441
Trip Plan
Given the relatively short duration of just over two hours, you have plenty of flexibility when choosing your departure time. However, keeping an eye on traffic patterns around major interchanges where I-75, I-24, and I-40 converge is a smart way to avoid unnecessary delays. Since there are no mandatory stops built into this 111.4-mile itinerary, you can easily pace the drive according to your own comfort level. Make sure your tank is ready for the road, as the $17 fuel estimate assumes a steady pace on the interstate. A helpful tip for this specific route is to stay alert during the long 99.2-mile stretch on I-75, as highway-heavy drives can become monotonous, so plan for a quick stretch or coffee break if you feel your focus drifting.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 55.7 miles from Chattanooga, TN, or about 1h 5m into the drive.
The longest continuous stretch on this route runs about 99.2 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 25 miles or 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 55.7 miles or 1h 5m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 45m
Traffic, exits, and arrival timing usually matter more near Knoxville, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Chattanooga, 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 Chattanooga, TN
This is one driving day of about 111.4 miles and 2h 8m.
Your first comfortable stop window is around 25 miles from Chattanooga, TN.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 75 for about 99.2 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 8
5 decision points cluster between mile 0 and 110.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|Market Street
Turn right onto Market Street
Navigation decision point
8
7.3 mi into trip|~11m in
Keep slight left at fork toward I 75 North: Knoxville
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Exit 185 B
Toward I 75 North: Knoxville
5
8.2 mi into trip|~12m in|I 75
Merge onto I 75
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
6
110.3 mi into trip|~2h 6m in
Take the exit toward Convention Center, East Tennessee History Center, Museum of Art
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 388
Toward Convention Center, East Tennessee Histor...
7
110.7 mi into trip|~2h 6m in
Keep slight left at fork toward Convention Center, East Tennessee History Center, Museum of Art
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Exit 388
Toward Convention Center, East Tennessee Histor...
Fuel & Cost
Regular Gas
$17.42 one way
$34.83 round trip
$3.97/gal25.4 MPG avg39 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$19.12
$38.24
premium
$4.89
$21.44
$42.88
diesel
$5.61
$24.60
$49.19
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$17
Meals
$25–$50
Total
$42–$67
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 39 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $12 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
33.4
0
$11.70
$5.35
Efficient EV
27.9
0
$9.75
$4.46
EV Truck/SUV
44.6
0
$15.60
$7.13
Gas CO2
39 kg
EV CO2
13 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Apr 18, 2026
Origin
Chattanooga, TN
Late night
in Chattanooga on Sunday
Local time
12:43 AM
EDT
Current temp
84°F
Unavailable
Live forecast
Destination
Knoxville, TN
Late night
in Knoxville on Sunday
Local time
12:43 AM
EDT
Current temp
74°F
Unavailable
Live forecast
84°F
Athens, TN
56 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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
10 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 8m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a focused interstate experience, as 97% of this drive is composed of highway travel. You will primarily navigate I-75, I-24, and I-40, which provide a fast, direct connection between the two cities. The longest uninterrupted stretch occurs on I-75, spanning 99.2 miles of the journey. This is a highway-focused drive, meaning you should prepare for steady, consistent speeds rather than technical turns or winding backroads. While the route is functional and efficient, it remains a standard interstate commute that allows you to cover the distance with minimal navigation stress.
97% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 99.2 mi on I 75.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 75 and I 24. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Market Street.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 8 significant decision points across 111.4 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: near the start (Market Street): Navigation decision point; at 7.3 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 8.2 miles (I 75): Merge point - match speed before joining. Lane positioning matters here.
Chattanooga is the 4th largest city in Tennessee. It is the seat of Hamilton County. It is in Southeast Tennessee on the Tennessee River and near the border of Georgia. It was immortalized in the popular 1941 song "Chattanooga Choo Choo", made famous by Glenn Miller.
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.
Doable as a same-day drive at 2h 8m. Total distance: 111.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 8m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (97%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 99.2 miles on I 75. The full list of main roads is in the Roads section above.
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 Knoxville, 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start (Market Street): Navigation decision point; at 7.3 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 8.2 miles (I 75): Merge point - match speed before joining. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Knoxville, TN before heading back.
