Knoxville to Trenton is 331.8 miles and takes about 6h 8m via I 40 and US 45, with a fuel budget near $51 and enough daylight to finish in a day. This trip stays within Tennessee, moving from the Southeast region to another part of the Southeast. The majority of this drive is on the interstate, offering a straightforward path. Given the relatively short duration, it's a manageable one-day trip for most drivers looking for an efficient way to cover ground.
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
165.9 miles from Knoxville, TN
A natural place for your longest stop of the day
, about 3h 1m into the drive
.
Main Roads
Road
Distance
Duration
I 40
301.4 mi
5h 27m
North Central Avenue
10.3 mi
11m
US 45
9.8 mi
12m
North Highland Avenue
4.4 mi
7m
Downtown Loop
2.9 mi
3m
East Eaton Street
0.8 mi
1m
Western Avenue
0.7 mi
1m
Ailor Avenue
0.4 mi
<1m
Longest stretch:
I 40
— 301.4 mi, about 5h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between Knoxville, TN and Trenton, 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
155 mi·2 hr 46 min·I 40
Toward NashvilleUse the straight / slight right lanes.
8
Keep slight right at fork onto I 40
2.1 mi·3 min·I 40
Exit 213BToward I 24 West, I 40 West: NashvilleUse the straight / slight right lanes.
9
Keep slight left at fork onto I 40
0.4 mi·42 sec·I 40
Toward I 40 West: Huntsville, MemphisUse the slight left lane.
10
Merge onto I 40
0.6 mi·52 sec·Downtown Loop
Use the straight / slight right lanes.
11
Continue on I 40
2.3 mi·3 min·Downtown Loop
Exit 210AToward I 40 West, I 65 North: Memphis, LouisvilleUse the straight / slight right lanes.
12
Keep slight left at fork onto I 40
126 mi·2 hr 15 min·I 40
Toward I 40 West: MemphisUse the slight left / slight right lanes.
13
Take the exit
0.3 mi·41 sec
Toward US 45: Trenton
14
Turn right onto US 45
4.4 mi·7 min·North Highland Avenue
15
Take the ramp onto US 45
9.8 mi·12 min·US 45
16
Turn right onto US 45W
10 mi·11 min·North Central Avenue
17
Turn left onto TN 104
0.6 mi·54 sec·East Eaton Street
18
Continue on TN 104
70 ft·1 sec·East Eaton Street
19
Enter roundabout onto East Eaton Street
0.2 mi·17 sec·East Eaton Street
20
Continue on East Eaton Street
16 ft·0 sec·East Eaton Street
21
Arrive at destination
East Eaton Street
Trip Plan
To make the most of this 6-hour drive, aim to leave Knoxville in the morning to allow for a comfortable arrival in Trenton well before evening. With only one day recommended, you can easily complete this trip without needing an overnight stop. Consider filling up your fuel tank before departing Knoxville, as the majority of your drive will be on the interstate where services can be spaced out. The longest continuous stretch on I 40 is over 300 miles, so plan any breaks before or after this segment.
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 165.9 miles from Knoxville, TN, or about 3h 1m into the drive.
The longest continuous stretch on this route runs about 301.4 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 73 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 165.9 miles or 3h 1m 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 57m
Traffic, exits, and arrival timing usually matter more near Trenton, 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 331.8 miles and 6h 8m.
Your first comfortable stop window is around 73 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 301.4 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 1.8 and 180.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
1.8 mi into trip|~3m in|I 40
Merge onto I 40
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
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
9
174.9 mi into trip|~3h 10m in|I 40
Keep slight right at fork onto I 40 toward I 24 West, I 40 West: Nashville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 213B
Toward I 24 West, I 40 West: Nashville
8
177.1 mi into trip|~3h 14m in|I 40
Keep slight left at fork onto I 40 toward I 40 West: Huntsville, Memphis
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Toward I 40 West: Huntsville, Memphis
7
180.4 mi into trip|~3h 18m in|I 40
Keep slight left at fork onto I 40 toward I 40 West: Memphis
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward I 40 West: Memphis
Fuel & Cost
Regular Gas
$55.17 one way
$110.33 round trip
$4.22/gal25.4 MPG avg116 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.60
$60.09
$120.18
premium
$5.18
$67.71
$135.41
diesel
$5.35
$69.89
$139.77
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$55
Meals
$25–$50
Total
$80–$105
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 116.1 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $35 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
99.5
1
$34.84
$15.93
Efficient EV
83
0
$29.03
$13.27
EV Truck/SUV
132.7
1
$46.45
$21.24
Gas CO2
116 kg
EV CO2
39 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 Jun 1, 2026
Origin
Knoxville, TN
Evening
in Knoxville on Wednesday
Local time
5:51 PM
EDT
Current temp
64°F
Mostly Cloudy
0 mph8% chanceLive forecast
Destination
Trenton, TN
Afternoon
in Trenton on Wednesday
Local time
4:51 PM
CDT
Current temp
68°F
Slight Chance Showers And Thunderstorms
0 mph20% chanceLive forecast
68°F
Brentwood Estates, TN
166 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
4 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
6h 8m 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.
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 160.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is 94% highway, meaning you'll spend most of your time on major roads. The longest stretch without needing to exit is a considerable 301.4 miles on I 40. You'll notice a high density of exits and potentially merging traffic as you stay on the interstate for the bulk of the drive. North Central Avenue and US 45 will be your surface road segments near the end of the trip.
94% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 301.4 mi on I 40.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 40 and North Central Avenue. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.8 miles in near I 40.
Driving Effort8/10
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 331.8 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 1.8 miles (I 40): Merge point - match speed before joining. Lane positioning matters here; at 20.1 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 174.9 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,778 ft331 ft
Total Climb
1,354 ft
Total Descent
1,922 ft
Highest Point
1,778 ft
~71.1 mi in
Elevation Range
1,447 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 Trenton, TN, road signs point toward Nashville, Memphis and Louisville.
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
Trenton is in Mercer County, and is the capital of New Jersey. The city's strategic location in between New York City and Philadelphia has historically contributed to its growth and significantly impacts local culture. Located on the Delaware River across from Pennsylvania, Trenton is the only accessible capital city in the United States to border another state.
Top landmarks
•Gibson County Courthouse — courthouse in Trenton, Tennessee
Doable as a same-day drive at 6h 8m. Total distance: 331.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 8m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 301.4 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 36 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 Trenton, 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 36 rest areas along the route for bathroom stops.
The main spots that need attention: at 1.8 miles (I 40): Merge point - match speed before joining. Lane positioning matters here; at 20.1 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here; at 174.9 miles (I 40): Highway fork - watch signs carefully. 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.
Not recommended in a single day. At 6.1 hours each way, a round trip means 12.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Trenton, TN before the return drive.
