The drive from Franklin, TN to Mountain City, TN covers 340.9 miles and takes about 6h 17m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 40, I 81, US 421 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 208 miles on I 40.
At current regular gas prices, budget about $53.30 one way before food or hotel costs.
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
170.5 miles from Franklin, TN
A natural place for your longest stop of the day
, about 3h 8m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 17m. Total distance: 340.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 17m drive, plan rest stops for pacing.
Drive Character
This is a 6h 17m highway drive covering 340.9 miles, with most of the trip on I 40 and I 81. The longest continuous stretch is about 208 miles on I 40.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 22 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 40 is the longest continuous segment at about 208 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 40 and I 81. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2.9 miles in.
Driving Effort10/10
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 17 significant decision points across 340.9 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 2.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 17.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 17 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
2.9 mi into trip|~4m in
Take the exit
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the left lane.
8
17.5 mi into trip|~21m in
Keep slight right at fork toward I 440 East: Knoxville, Chattanooga
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 440 East: Knoxville, Chattanooga
8
19.9 mi into trip|~24m in
Keep slight left at fork toward I 24 West: Nashville, Knoxville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward I 24 West: Nashville, Knoxville
8
20.4 mi into trip|~25m in
Keep slight left at fork toward I 24 West, I 40 East: Nashville, Knoxville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward I 24 West, I 40 East: Nashville, Knoxvil...
8
21 mi into trip|~26m in
Keep slight right at fork toward I 40 East: Knoxville
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Exit 52B
Toward I 40 East: Knoxville
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Franklin, TN and Mountain City, TN, road signs point toward Knoxville, Chattanooga and Bristol.
Knoxville
17.2 mi in|~20m
Chattanooga
17.5 mi in|~21m
Bristol
298.3 mi in|~5h 27m
Main Roads
Road
Distance
Duration
I 40
208 mi
3h 47m
I 81
69.1 mi
1h 14m
US 421
20.1 mi
22m
I 65
14.1 mi
15m
Tennessee Ernie Ford Parkway
12.8 mi
15m
Carl Moore Parkway
9.1 mi
10m
Murfreesboro Road
2.4 mi
3m
Debra K Johnson Memorial Parkway
2 mi
2m
Longest stretch:
I 40
— 208 mi, about 3h 47m
Turn-by-Turn Driving Directions
Step-by-step road directions between Franklin, TN and Mountain City, TN.
1
Start on US 31 Business; TN 96
418 ft·7 sec·Public Square
2
Continue on 3rd Avenue South
0.3 mi·34 sec·3rd Avenue South
Use the straight / right lanes.
3
Continue on SR 96
2.4 mi·3 min·Murfreesboro Road
Use the straight / right lanes.
4
Take the exit
0.3 mi·41 sec
Use the left lane.
5
Merge onto I 65
14 mi·15 min·I 65
Use the straight / slight right lanes.
6
Take the exit
0.2 mi·31 sec
Exit 80Toward I 440: Memphis, Knoxville
7
Keep slight right at fork
0.4 mi·55 sec
Toward I 440 East: Knoxville, ChattanoogaUse the slight right lane.
8
Merge onto I 440
2.0 mi·2 min·Debra K Johnson Memorial Parkway
9
Keep slight left at fork
0.5 mi·48 sec
Toward I 24 West: Nashville, KnoxvilleUse the slight left / slight right lanes.
10
Keep slight left at fork
0.3 mi·36 sec
Toward I 24 West, I 40 East: Nashville, KnoxvilleUse the slight left lane.
11
Merge onto I 24
0.3 mi·20 sec·I 24
12
Keep slight right at fork
0.3 mi·40 sec
Exit 52BToward I 40 East: KnoxvilleUse the slight right lane.
13
Merge onto I 40
171 mi·3 hr 6 min·I 40
Use the straight / slight right lanes.
14
Keep slight left at fork onto I 40
37 mi·40 min·I 40
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 81
69 mi·1 hr 14 min·I 81
Exit 421Toward I 81 North: Bristol
16
Take the exit
0.3 mi·35 sec
Exit 69Toward SR 394: Blountville, Bristol
17
Turn slight right
109 ft·5 sec
Toward I 81 Alt North
18
Turn right onto TN 394; I 81 Alt
13 mi·15 min·Tennessee Ernie Ford Parkway
Use the right lane.
19
Turn right onto US 421
9.1 mi·10 min·Carl Moore Parkway
20
Turn slight left onto US 421
20 mi·22 min·US 421
21
Turn left onto SR 418
0.3 mi·28 sec·West Main Street
22
Arrive at destination
SR 418
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 170.5 miles from Franklin, TN, or about 3h 8m into the drive.
The longest continuous stretch on this route runs about 208 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 75 miles or 1h 25m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 170.5 miles or 3h 8m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 9m
Traffic, exits, and arrival timing usually matter more near Mountain City, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Franklin, 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 Franklin, TN
This is one driving day of about 340.9 miles and 6h 17m.
Your first comfortable stop window is around 75 miles from Franklin, 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 208 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 170.5 mi from Franklin, TN
· 3h 8m into the drive
The midpoint is around 170.5 miles from Franklin, TN, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before I 40 if your tank is already low. That segment runs about 208 miles.
Arriving in Mountain City, TN
The final approach into Mountain City, TN usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Mountain City, TN.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
21 mi from route
~52 min detour
Free
near mile 35.3
Ridge upon ridge of forest straddles the border between North Carolina and Tennessee in Great Smoky Mountains National Park. World renowned for its diversity of plant and animal life, the beauty of it...
29 mi from route
~72 min detour
Free
near mile 211.6
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$53.30 one way
$106.59 round trip
$3.97/gal25.4 MPG avg119 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$58.52
$117.03
premium
$4.89
$65.60
$131.21
diesel
$5.61
$75.27
$150.53
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$53
Meals
$25–$50
Total
$78–$103
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 119.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
EV Charging Along Route
2 DC fast chargers
· Coverage: fair
Mercedes-Benz Charging Station
Kodak, Tennessee
Other
1 DCFC
Tesla Supercharger
Kodak, Tennessee
Tesla
1 DCFC
Other: 1
Tesla: 1
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $36 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
102.3
1
$35.79
$16.36
Efficient EV
85.2
0
$29.83
$13.64
EV Truck/SUV
136.4
1
$47.73
$21.82
Gas CO2
119 kg
EV CO2
40 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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
Franklin, TN
Late night
in Franklin on Saturday
Local time
3:05 AM
CDT
Current temp
84°F
Unavailable
Live forecast
Destination
Mountain City, TN
Late night
in Mountain City on Saturday
Local time
4:05 AM
EDT
Current temp
--
Unavailable
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 later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Road read
6h 17m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Franklin, TN to Mountain City, TN covers 340.9 miles and takes about 6h 17m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 40, I 81, US 421. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 170.5 miles from Franklin, TN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $53.30 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 17 significant decision points across 340.9 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.
The main spots that need attention: at 2.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 17.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Franklin, TN and Mountain City, TN, road signs point toward Knoxville, Chattanooga and Bristol.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
