Origin
Greenbrier, TN
Morning in Greenbrier on Sunday
Local time
10:00 AM
CDT
Current temp
54°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
5h 49m
Distance
307.7 mi
495 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$48
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Greenbrier, TN
Kelly
Johnson City, TN
Wikimedia Commons
This 307.7-mile drive from Greenbrier to Johnson City, Tennessee, is a straightforward, highway-focused journey that can comfortably be completed in a single day. With an estimated duration of 5 hours and 49 minutes, it's a manageable trip for most drivers, and the estimated fuel cost comes in around $48. You'll primarily be on Interstates 24, 40, and 81, making for a consistent driving experience. Since both your origin and destination are within the Southeast region, you won't encounter significant regional shifts. This route is ideal for those looking to cover ground efficiently within Tennessee.
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
153.9 miles from Greenbrier, TN
A natural place for your longest stop of the day , about 2h 58m into the drive .
| Road | Distance | Duration |
|---|---|---|
| I 40 | 129.9 mi | 2h 23m |
| I 24 | 80.6 mi | 1h 27m |
| I 81 | 56.6 mi | 1h |
| Ashland City Highway | 14.2 mi | 21m |
| James H. Quillen Parkway | 14 mi | 16m |
| SR 49 | 3.5 mi | 5m |
| Rosa L Parks Boulevard | 2.8 mi | 4m |
| Downtown Loop | 1.4 mi | 1m |
Step-by-step road directions between Greenbrier, TN and Johnson City, TN.
Start on SR 49
At end of road, turn right onto TN 12; TN 49; TN 249
Continue on TN 12
Turn right onto US 41A
Continue on Clarksville Pike
Turn left onto Rosa L Parks Boulevard
Continue on US 41A
Turn left onto Jefferson Street
Continue on Spring Street
Take the ramp
Merge onto I 24
Keep slight left at fork onto I 24
Continue on I 40
Keep slight left at fork onto I 40
Keep slight left at fork onto I 81
Take the exit
Merge onto I 26; US 23
Take the exit
Turn right onto SR 91
Turn left onto Buffalo Street
Turn right
Arrive at destination
Given the 5-hour and 49-minute duration, starting your drive from Greenbrier in the morning is recommended to avoid potential traffic and maximize daylight. With only one stop suggested, plan your fuel and rest breaks strategically, perhaps around the halfway point. Keep an eye on your fuel gauge, especially before embarking on the longest stretch of 129.9 miles on I-40, as services can sometimes be spaced out on interstates. This is a drive where you can easily complete it in one go, offering flexibility for when you depart and how often you choose to stretch your legs.
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.
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 68 miles or 1h 25m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 153.9 miles or 2h 58m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 46m
Traffic, exits, and arrival timing usually matter more near Johnson City, TN than in the middle of the route.
Open the route before leaving Greenbrier, 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 Greenbrier, TN
This is one driving day of about 307.7 miles and 5h 49m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
154 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 68 miles helps settle the day before fatigue starts building.
The midpoint is around 153.9 miles from Greenbrier, TN, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 40 if your tank is already low. That segment runs about 129.9 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 20.2 and 292.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto Rosa L Parks Boulevard
Lane positioning matters here
Keep slight left at fork onto I 24 toward I 40 East, I 24 East: Knoxville, Chattanooga
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork onto I 40
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight left at fork onto I 81 toward I 81 North: Bristol
Highway fork - watch signs carefully
Take the exit toward I 26 East, US 23 South: Johnson City, Asheville
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Regular Gas
$48.11 one way
$96.21 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $52.82 | $105.64 |
| premium | $4.89 | $59.21 | $118.43 |
| diesel | $5.61 | $67.94 | $135.87 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$48
Meals
$25–$50
Total
$73–$98
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 107.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $32 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 92.3 | 1 | $32.31 | $14.77 |
| Efficient EV | 76.9 | 0 | $26.92 | $12.31 |
| EV Truck/SUV | 123.1 | 1 | $43.08 | $19.69 |
Gas CO2
108 kg
EV CO2
36 kg (67% 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.
Current conditions at both ends of the drive.
Origin
Morning in Greenbrier on Sunday
Local time
10:00 AM
CDT
Current temp
54°F
Unavailable
Destination
Morning in Johnson City on Sunday
Local time
11:00 AM
EDT
Current temp
77°F
Unavailable
75°F
Spring City, TN
154 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
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
Expect a predominantly highway experience, with 92% of your journey utilizing major interstates. The character of this drive is largely defined by its efficiency, allowing you to make good time. You'll encounter one significant stretch of 129.9 miles on I-40, so be prepared for extended periods of consistent speed. While primarily interstate, the transition between I-24, I-40, and I-81 offers a subtle change in scenery and road configuration as you make your way across the state. It’s a route designed for getting from point A to point B without many detours.
This is a straightforward highway drive that stays mostly on I 40 and I 24. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 20.2 miles in near Rosa L Parks Boulevard.
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 307.7 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 20.2 miles (Rosa L Parks Boulevard): Lane positioning matters here; at 25.5 miles (I 24): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 199.3 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here.
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Greenbrier, TN to Johnson City, TN, road signs begin pointing toward Chattanooga along the way.
Chattanooga
Weekend Trip
Doable as a same-day drive at 5h 49m. Total distance: 307.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 49m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (92%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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