How far is Smithville, TN from Johnson, TN?
The driving distance from Smithville, TN to Johnson, TN is about 110.5 miles (177.9 km), with a travel time of about 01h 55m by car.
- The straight-line flight distance is about 72.9 miles (117.3 km).
- For a round trip, plan for roughly 03h 50m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 55m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in and county seat of Cumberland County, Tennessee, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Smithville and Johnson.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithville and Johnson.
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1
Start on West Market Street
124 m · 23 sec · West Market Street
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2
Continue on East Public Square
47 m · 9 sec · East Public Square
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3
Turn right onto East Main Street
153 m · 28 sec · East Main Street
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4
Turn left onto Congress Boulevard
2930 ft · 50 sec · Congress Boulevard
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5
Continue on Cookeville Highway
11.7 mi · 17 min · Cookeville Highway
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6
Continue on Smithville Highway
2691 ft · 46 sec · Smithville Highway
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7
Take the ramp right
18 mi · 19 min
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8
Continue straight
61.1 mi · 1 hr 7 min
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9
Take the exit slight right toward Primary SR 58 South: Kingston
1787 ft · 40 sec
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10
Turn right onto North Kentucky Street
2 mi · 5 min · North Kentucky Street
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11
Continue on Decatur Highway
4.6 mi · 7 min · Decatur Highway
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12
Turn left onto Loudon Highway
5.4 mi · 8 min · Loudon Highway
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13
Turn right onto Sweetwater Road
3.6 mi · 6 min · Sweetwater Road
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14
Turn right onto Johnson Valley Road
2.5 mi · 10 min · Johnson Valley Road
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15
Turn slight left onto Raby Town Road
41 m · 6 sec · Raby Town Road
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16
Arrive at your destination
0 m · 1 sec · Raby Town Road
Car Route Details
A richer read on the saved driving route between Smithville and Johnson.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Smithville Highway
Continue straight
61.1 mi · 01h 07m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Smithville and Sunny near Johnson.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithville to Johnson?
The road trip is about 110.5 miles (177.9 km) and usually takes 01h 55m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Crossville is a useful midpoint, sitting about 55.2 miles from Smithville and 55.4 miles from Johnson.
How much longer is the road route than the straight-line distance?
The direct path is about 72.9 miles (117.3 km), while the road route adds roughly 37.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:40 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.71 one way or $29.41 round trip. Estimated CO2 is about 34.7 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Smithville and Johnson, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Smithville and Sunny near Johnson.
Flight Path Map
This map shows the direct air route between Smithville and Johnson. Straight-line distance: 72.91 mi (117.33 km).
#1 Smithville
City in Tennessee
| Population | 4,978 |
| Coordinates | 35.9606200, -85.8141500 |
| Altitude | 316 |
| Country | United States |
#2 Johnson
Johnson is a place in Tennessee, United States.
| Population | 0 |
| Coordinates | 35.6723000, -84.5624300 |
| Altitude | 273 |
| Country | United States |
End: Raby Town Road (-84.56222, 35.672434)
Estimated Travel Time
Distance: 178 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 41m |
| 40 mph (64.37 km/h) | 02h 45m |
| 50 mph (80.47 km/h) | 02h 12m |
| 60 mph (96.56 km/h) | 01h 50m |
| 70 mph (112.65 km/h) | 01h 34m |
| 80 mph (129 km/h) | 01h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.71 | $29.41 |
| Mid-grade | $4.25 | $16.59 | $33.17 |
| Premium | $4.65 | $18.15 | $36.30 |
| Diesel | $5.30 | $20.69 | $41.37 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Tennessee · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.