How far is Chattanooga, TN from Unionville, TN?

The driving distance from Chattanooga, TN to Unionville, TN is about 107.7 miles (173.3 km), with a travel time of about 02h 14m by car.

  • The straight-line flight distance is about 82.5 miles (132.8 km).
  • For a round trip, plan for roughly 04h 29m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
107.7 mi
02h 14m
Flight
82.54 mi
132.83 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Chattanooga.

Flight Distance

Direct air line
82.54 mi
Kilometers
132.83 km
Flight Time
00h 09m

Driving Distance

Road route
107.7 mi
Kilometers
173.33 km
Drive Time
02h 14m

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 02h 14m.

Arrival Snapshot
Arrive in Unionville
Fri, Nov 6, 10:52 PM CST
Return by in Chattanooga
Sat, Nov 7, 2:07 AM EST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Chattanooga
2026-11-06T21:37
Arrive Unionville
Fri, Nov 6, 11:52 PM EST
Route Timing
02h 14m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EST
Aim for a morning departure
Arrive between
9:15 AM to 11:15 AM CST

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
2:00 PM EST
Keeps a same-day return open with about 03h 00m at the destination.
Back in Chattanooga
9:30 PM EST
Morning start is best

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.

Mid-route stop
Monteagle
TN

Town in Franklin County, Tennessee, United States

From Chattanooga
53.8 mi
01h 07m
To Unionville
53.9 mi
01h 07m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
70°F
Friday

Patchy Fog then Sunny

Starts
Fri, Nov 6 6:00 AM EST
Wind
0 to 10 mph N
Destination
66°F
Friday

Patchy Fog then Mostly Sunny

Starts
Fri, Nov 6 6:00 AM CST
Wind
0 to 10 mph NNW

Driving Route Map

The map below follows the saved road route between Chattanooga and Unionville.

Turn-by-Turn Driving Directions

Step-by-step road directions between Chattanooga and Unionville.

  1. 1

    Start on West Martin Luther King Boulevard

    1761 ft · 56 sec · West Martin Luther King Boulevard

  2. 2

    Turn left

    1246 ft · 31 sec

  3. 3

    Merge slight left

    1.2 km · 59 sec

  4. 4

    Keep slight right to continue on 24: Nashville, Birmingham

    2222 ft · 42 sec

  5. 5

    Merge slight left

    61.8 mi · 1 hr 11 min

  6. 6

    Take the exit slight right toward Arnold Airforce Base, Tullahoma

    1421 ft · 30 sec

  7. 7

    Keep slight left to continue on Arnold Airforce Base, Tullahoma

    14 m · 8 sec

  8. 8

    Turn left onto Wattendorf Memorial Hwy

    537 ft · 12 sec · Wattendorf Memorial Hwy

  9. 9

    Continue on Wattendorf Memorial Highway

    10.6 mi · 14 min · Wattendorf Memorial Highway

  10. 10

    Continue on Wattendorf Highway

    1.7 mi · 2 min · Wattendorf Highway

  11. 11

    Continue on Forrest Boulevard

    2965 ft · 1 min · Forrest Boulevard

  12. 12

    Continue on South Anderson Street

    1815 ft · 57 sec · South Anderson Street

  13. 13

    Turn left onto East Carroll Street

    2327 ft · 34 sec · East Carroll Street

  14. 14

    Turn right onto South Jackson Street

    17.9 mi · 22 min · South Jackson Street

  15. 15

    Continue on Elm Street

    2895 ft · 51 sec · Elm Street

  16. 16

    Continue on Union Street

    11.6 mi · 17 min · Union Street

  17. 17

    Turn left onto Unionville-Chapel Hill Road

    58 m · 8 sec · Unionville-Chapel Hill Road

  18. 18

    Turn right onto Halls Mill Road

    29 m · 3 sec · Halls Mill Road

  19. 19

    Arrive at your destination

    0 m · 1 sec · Halls Mill Road

Car Route Details

A richer read on the saved driving route between Chattanooga and Unionville.

OSRM road route
Drive Character

Straightforward drive

The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.

Directions
19 steps
6 turns on the saved route
Ramps & Exits
3
2 merges, 1 ramps or exits
Navigation Density
17.6 / 100 mi
Decision points by distance
Main Roads
24
62.3 mi · 58%
South Jackson Street
17.9 mi · 17%
Union Street
11.6 mi · 11%
Wattendorf Memorial Highway
10.6 mi · 10%
Wattendorf Highway
1.66 mi · 2%
West Martin Luther King Boulevard
1.05 mi · 1%
Longest Stretch

24

Merge slight left

61.8 mi · 01h 11m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
02h 14m
Day trip friendly
Same-Day Return
04h 30m
Round-trip wheel time
Road vs Air
+25.2 mi
82.5 mi direct line
Halfway Stop
Monteagle
01h 07m from Chattanooga
Leave By
2:00 PM EST
Morning start is best
Weather Watch

Patchy Fog then Sunny leaving Chattanooga and Patchy Fog then Mostly Sunny near Unionville.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Chattanooga to Unionville?

The road trip is about 107.7 miles (173.3 km) and usually takes 02h 14m 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?

Monteagle is a useful midpoint, sitting about 53.8 miles from Chattanooga and 53.9 miles from Unionville.

How much longer is the road route than the straight-line distance?

The direct path is about 82.5 miles (132.8 km), while the road route adds roughly 25.2 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 EST. If you want a more comfortable same-day return, try to leave by 2:00 PM EST.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $13.99 one way or $27.98 round trip. Estimated CO2 is about 33.8 kg one way.

Do you cross a time zone on this route?

Yes. There is about a 1 hour time difference between Chattanooga and Unionville, so arrival and return times should be read in local time.

What should you check before leaving?

Before you leave, expect Patchy Fog then Sunny around Chattanooga and Patchy Fog then Mostly Sunny near Unionville.

Flight Path Map

This map shows the direct air route between Chattanooga and Unionville. Straight-line distance: 82.54 mi (132.83 km).

Chattanooga

#1 Chattanooga

The fourth most populous city in Tennessee.

Population184,742
Coordinates35.0456300, -85.3096800
Altitude206
CountryUnited States
Photo coming soon

#2 Unionville

Unionville is a place in Tennessee, United States.

Population0
Coordinates35.6217400, -86.5925000
Altitude220
CountryUnited States
Start: Chattanooga (-85.30968, 35.04563)
End: Unionville (-86.5925, 35.62174)

Estimated Travel Time

Distance: 173 km by road

SpeedTime
30 mph (48.3 km/h)03h 35m
40 mph (64.37 km/h)02h 41m
50 mph (80.47 km/h)02h 09m
60 mph (96.56 km/h)01h 47m
70 mph (112.65 km/h)01h 32m
80 mph (129 km/h)01h 20m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
3.8 gal
14.39 L · about $13.99
Round trip
$27.98
7.6 gal · 28.78 L
Estimated CO2
33.8 kg one way
Round trip: 67.5 kg / 149 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.68 $13.99 $27.98
Mid-grade $4.15 $15.77 $31.54
Premium $4.56 $17.34 $34.68
Diesel $5.90 $22.41 $44.82

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 · Nov 06, 2026

Please keep in mind that there is a 1 hour time gap between Chattanooga, TN and Unionville, TN. The current time in Chattanooga is 21:37:26, although it is 20:37:26 in Unionville.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.