Gallatin to Greeneville is 240.2 miles and takes about 4h 30m via I-40 and I-81, with a fuel budget near $38 and enough daylight to finish in a day. This trip stays within Tennessee, traversing the Southeast region from start to finish. Expect a predominantly highway experience, making it a straightforward drive for a single day. With only one recommended stop, you can expect a pretty direct transit between these two points.
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
120.1 miles from Gallatin, TN
A natural place for your longest stop of the day
, about 2h 17m into the drive
.
Main Roads
Road
Distance
Duration
I 40
189 mi
3h 26m
I 81
22.7 mi
24m
SR 109
12.9 mi
18m
West Andrew Johnson Highway
11.2 mi
12m
South Water Avenue
1.7 mi
3m
West Summer Street
1.5 mi
2m
US 11E Business
0.3 mi
<1m
South Main Street
<0.1 mi
<1m
Longest stretch:
I 40
— 189 mi, about 3h 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Gallatin, TN and Greeneville, TN.
1
Start on TN 25
67 ft·5 sec·West Main Street
2
Turn right onto South Water Avenue
1.7 mi·3 min·South Water Avenue
Use the straight / right lanes.
3
Continue on SR 109
2.2 mi·2 min·SR 109
4
Continue on SR 109
7.1 mi·11 min·SR 109
5
Continue on SR 109
3.6 mi·4 min·SR 109
6
Turn left
0.4 mi·58 sec
Toward I 40 East: Knoxville
7
Merge onto I 40
152 mi·2 hr 45 min·I 40
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 40
37 mi·40 min·I 40
Use the straight / slight right lanes.
9
Keep slight left at fork onto I 81
23 mi·24 min·I 81
Exit 421Toward I 81 North: Bristol
10
Take the exit
0.4 mi·45 sec
Toward US 11E: Mosheim, Greeneville, Bulls Gap
11
Turn right onto US 11E
11 mi·12 min·West Andrew Johnson Highway
12
Take the exit onto US 11E Business
0.2 mi·35 sec·US 11E Business
13
Keep slight right at fork onto US 11E Business
329 ft·9 sec·US 11E Business
14
Merge onto US 321; US 11E Business; SR 70
1.5 mi·2 min·West Summer Street
15
Turn left onto US 11E Business; US 321 Business
361 ft·6 sec·South Main Street
16
Arrive at destination
US 11E Business; US 321 Business
Trip Plan
Given the 4.5-hour duration, leaving Gallatin in the morning should get you to Greeneville well before evening. Since this is a single-day trip with only one recommended stop, you have flexibility in planning your break. Keep an eye on fuel levels, especially as you approach the 189-mile mark on I-40, as services can be more spread out on longer highway stretches. Your estimated fuel cost is around $38, so budget accordingly.
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 120.1 miles from Gallatin, TN, or about 2h 17m into the drive.
The longest continuous stretch on this route runs about 189 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 53 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 120.1 miles or 2h 17m 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 41m
Traffic, exits, and arrival timing usually matter more near Greeneville, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Gallatin, 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 Gallatin, TN
This is one driving day of about 240.2 miles and 4h 30m.
Your first comfortable stop window is around 53 miles from Gallatin, 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 189 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 10
5 decision points cluster between mile 0 and 226.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in|South Water Avenue
Turn right onto South Water Avenue
Lane positioning matters here
Use the straight / right lanes.
5
15.1 mi into trip|~22m in|I 40
Merge onto I 40
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
167.4 mi into trip|~3h 8m in|I 40
Keep slight left at fork onto I 40
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
204.1 mi into trip|~3h 49m in|I 81
Keep slight left at fork onto I 81 toward I 81 North: Bristol
Highway fork - watch signs carefully
Exit 421
Toward I 81 North: Bristol
5
226.8 mi into trip|~4h 13m in
Take the exit toward US 11E: Mosheim, Greeneville, Bulls Gap
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 11E: Mosheim, Greeneville, Bulls Gap
Fuel & Cost
Regular Gas
$35.47 one way
$70.94 round trip
$3.75/gal25.4 MPG avg84 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$39.16
$78.32
premium
$4.72
$44.60
$89.20
diesel
$4.80
$45.35
$90.71
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 84 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $25 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
72.1
0
$25.22
$11.53
Efficient EV
60.1
0
$21.02
$9.61
EV Truck/SUV
96.1
1
$33.63
$15.37
Gas CO2
84 kg
EV CO2
28 kg (67% 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 Jul 18, 2026
Origin
Gallatin, TN
Late night
in Gallatin on Sunday
Local time
5:30 AM
CDT
Current temp
73°F
Patchy Fog
0 mph15% chanceLive forecast
Destination
Greeneville, TN
Morning
in Greeneville on Sunday
Local time
6:30 AM
EDT
Current temp
70°F
Mostly Cloudy
0 mph1% chanceLive forecast
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.
Temperature spread
3 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
4h 30m 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...
22 mi from route
~54 min detour
Free
near mile 16.6
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...
27 mi from route
~67 min detour
Free
near mile 190.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll be on highways for 94% of this 240.2-mile drive. The longest continuous stretch on these main roads is 189 miles, primarily on I-40. Expect a mostly highway profile, with the transition to surface roads occurring late in the trip. The significant highway share suggests a consistent cruising speed with frequent exits.
94% highway — fuel and pacing are the main things to plan.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 189 mi on I 40.
How Hard Is This Drive?
7/10
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 early in the drive near South Water Avenue.
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 10 significant decision points across 240.2 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 (South Water Avenue): Lane positioning matters here; at 15.1 miles (I 40): Merge point - match speed before joining. Lane positioning matters here; at 167.4 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
1,894 ft540 ft
Total Climb
2,237 ft
Total Descent
1,251 ft
Highest Point
1,894 ft
~85.8 mi in
Elevation Range
1,354 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Gallatin, TN to Greeneville, TN, road signs begin pointing toward Bulls Gap along the way.
Greeneville is a small town in Tennessee that was the political base of President Andrew Johnson. You can visit two of his homes and his burial place here. The town was the capital of the short-lived State of Franklin in the 18th-century history of the Tennessee region.
Top landmarks
•Andrew Johnson National Historic Site — National Historic Site in the United States
•Andrew Johnson National Cemetery — national cemetery in Greeneville, Tennessee, United States
•Greeneville Historic District — historic district in Greeneville, Tennessee
Doable as a same-day drive at 4h 30m. Total distance: 240.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 30m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (94%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 189 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 24 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 Greeneville, 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 24 rest areas along the route for bathroom stops.
The main spots that need attention: near the start (South Water Avenue): Lane positioning matters here; at 15.1 miles (I 40): Merge point - match speed before joining. Lane positioning matters here; at 167.4 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Stones River National Battlefield and Great Smoky Mountains National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.0 hours — manageable with a long break at Greeneville, TN, but most travelers stay overnight.
