This 238.8-mile drive from Watertown to Clarksville, Tennessee, is a straightforward, highway-focused journey that can easily be completed in a single day. Expect to spend about 4 hours and 38 minutes on the road, with a fuel cost estimated around $37. The route primarily utilizes I-40 and I-24, making it efficient for covering ground. Given its manageable length and focus on major interstates, this trip is well-suited as a day trip, allowing for flexibility in your schedule. You'll remain within the Southeast region throughout your travels.
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
119.4 miles from Watertown, TN
A natural place for your longest stop of the day
, about 2h 23m into the drive
.
Main Roads
Road
Distance
Duration
I 40
152.5 mi
2h 44m
I 24
36.4 mi
40m
East Lamar Alexander Parkway
36 mi
49m
Madison Street
4.7 mi
8m
TN 76
3.4 mi
3m
Downtown Loop
2.3 mi
3m
East Millers Cove Road
1.9 mi
4m
University Avenue
0.4 mi
<1m
Longest stretch:
I 40
— 152.5 mi, about 2h 44m
Turn-by-Turn Driving Directions
Step-by-step road directions between Watertown, TN and Clarksville, TN.
1
Start on this road
33 ft·9 sec·this road
2
Turn left onto East Millers Cove Road
1.9 mi·4 min·East Millers Cove Road
3
At end of road, turn right onto Old Walland Highway
0.3 mi·38 sec·Old Walland Highway
4
Turn right onto US 321
9.0 mi·13 min·East Lamar Alexander Parkway
5
Continue on US 321
27 mi·36 min·East Lamar Alexander Parkway
Use the straight / right lanes.
6
Take the exit
0.3 mi·32 sec
Toward I 40 West: NashvilleUse the left lane.
7
Merge onto I 40
150 mi·2 hr 41 min·I 40
Use 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 right at fork onto I 24
0.3 mi·28 sec·I 24
Exit 211Toward I 24 West: Clarksville, LouisvilleUse the slight right lane.
10
Merge onto I 24
2.3 mi·3 min·Downtown Loop
Use the straight / slight right lanes.
11
Continue on I 24
2.1 mi·2 min·I 24
Exit 46AToward I 24 West, I 65 North: Clarksville, LouisvilleUse the straight / slight left lanes.
12
Take the exit onto I 24
34 mi·36 min·I 24
Exit 88Toward I 24 West: ClarksvilleUse the slight left / straight lanes.
13
Take the exit
0.3 mi·40 sec
Toward TN 76
14
Keep slight left at fork
283 ft·9 sec
15
Continue on TN 76
3.4 mi·3 min·TN 76
16
Turn right onto US 41A
4.7 mi·8 min·Madison Street
Use the straight / left / right lanes.
17
Turn right onto US 41A
0.4 mi·44 sec·University Avenue
18
At end of road, turn left onto US 41A; SR 48
0.3 mi·45 sec·College Street
19
Turn left onto North 2nd Street
134 ft·2 sec·North 2nd Street
Use the straight / left lanes.
20
Arrive at destination
North 2nd Street
Trip Plan
To make the most of this 4-hour, 38-minute drive, consider an early morning departure to avoid potential traffic, especially as you approach major interstate junctions. With only one recommended stop and a longest stretch of 152.5 miles on I-40, plan your fuel and rest breaks accordingly. You'll likely want to take advantage of the services available along I-40 before you transition to I-24. Since this is a one-day trip, you have the flexibility to linger at your starting point or arrive in Clarksville with ample daylight remaining.
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 119.4 miles from Watertown, TN, or about 2h 23m into the drive.
The longest continuous stretch on this route runs about 152.5 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 11m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 119.4 miles or 2h 23m 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 47m
Traffic, exits, and arrival timing usually matter more near Clarksville, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Watertown, 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 Watertown, TN
This is one driving day of about 238.8 miles and 4h 38m.
Your first comfortable stop window is around 53 miles from Watertown, 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 152.5 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 17
5 decision points cluster between mile 38.2 and 233.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
38.2 mi into trip|~55m in
Take the exit toward I 40 West: Nashville
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the left lane.
Toward I 40 West: Nashville
9
188.8 mi into trip|~3h 37m 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
9
190.9 mi into trip|~3h 40m in|I 24
Keep slight right at fork onto I 24 toward I 24 West: Clarksville, Louisville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 211
Toward I 24 West: Clarksville, Louisville
7
195.7 mi into trip|~3h 47m in|I 24
Take the exit onto I 24 toward I 24 West: Clarksville
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left / straight lanes.
Exit 88
Toward I 24 West: Clarksville
6
233.4 mi into trip|~4h 29m in|US 41A / Madison Street
Turn right onto US 41A / Madison Street
Lane positioning matters here
Use the straight / left / right lanes.
Fuel & Cost
Regular Gas
$35.27 one way
$70.53 round trip
$3.75/gal25.4 MPG avg84 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$38.93
$77.86
premium
$4.72
$44.34
$88.68
diesel
$4.80
$45.09
$90.18
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: 83.6 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
71.6
0
$25.07
$11.46
Efficient EV
59.7
0
$20.90
$9.55
EV Truck/SUV
95.5
1
$33.43
$15.28
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
Watertown, TN
Morning
in Watertown on Sunday
Local time
6:31 AM
EDT
Current temp
85°F
Showers And Thunderstorms Likely
W 0 to 5 mph55% chanceLive forecast
Destination
Clarksville, TN
Late night
in Clarksville on Sunday
Local time
5:31 AM
CDT
Current temp
94°F
Sunny
W 5 to 10 mph21% 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 earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
9 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
4h 38m 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.
Great Smoky Mountains National Park
National Park
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...
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 172.9
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly a highway experience, with 96% of the journey taking place on major roadways like I-40 and I-24. You'll encounter one significant stretch of 152.5 miles on I-40, offering a consistent pace for a considerable portion of the trip. While the profile is largely highway-focused, the inclusion of East Lamar Alexander Parkway suggests a brief transition before or after the interstate segments. Expect a driving personality that prioritizes forward momentum and efficiency over winding backroads.
96% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 152.5 mi on I 40.
How Hard Is This Drive?
9/10
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 38.2 miles in.
Driving Effort9/10
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 238.8 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 38.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 188.8 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 190.9 miles (I 24): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,786 ft474 ft
Total Climb
1,409 ft
Total Descent
1,926 ft
Highest Point
1,786 ft
~102.3 mi in
Elevation Range
1,313 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 Watertown, TN to Clarksville, TN, road signs begin pointing toward Louisville along the way.
Clarksville is the county seat of Montgomery County, in Central Tennessee. Founded in 1784, Clarksville is one of the south's most historic cities. Today, visitors can experience that history through memorable attractions, unique historic architecture and a variety of annual festivals and events.
Steeped in history, Clarksville began as a settlement along the banks of the Cumberland and Red Rivers by Revolutionary War hero John Montgomery in the early 1780s. In 1785, Clarksville became Tennessee's first incorporated city.
Top landmarks
•Customs House Museum and Cultural Center — Clarksville, Tennessee, former customs house and former post office
Doable as a same-day drive at 4h 38m. Total distance: 238.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 38m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 152.5 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 16 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 Clarksville, 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 16 rest areas along the route for bathroom stops.
The main spots that need attention: at 38.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 188.8 miles (I 40): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 190.9 miles (I 24): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Great Smoky Mountains National Park and Stones River National Battlefield. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.6 hours each way, an in-and-out day trip would put you behind the wheel for 9.3 hours — manageable with a long break at Clarksville, TN, but most travelers stay overnight.
