Origin
Signal Mountain, TN
Morning in Signal Mountain on Sunday
Local time
11:57 AM
EDT
Current temp
84°F
Unavailable
Live forecast
Trip from Signal Mountain, TN to Chattanooga, TN
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
12m
Distance
7.9 mi
13 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$1
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 12m
★
6 AM
0h 13m
8 AM
0h 15m
10 AM
0h 13m
12 PM
0h 13m
3 PM
0h 14m
5 PM
0h 15m
8 PM
0h 12m
★
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Signal Mountain, TN
Wikimedia Commons
Chattanooga, TN
Wikimedia Commons
Trip Overview
Signal Mountain, TN to Chattanooga, TN is 7.9 miles and takes about 12m via Signal Mountain Boulevard and US 27, with a fuel budget near $1 and enough daylight to finish in a day. This very short trip stays within the Southeast region, specifically within Tennessee. It's a quick hop perfect for a single day, offering a straightforward connection between two nearby points. You'll find the drive uncomplicated, making it an easy addition to any larger itinerary or a simple commute.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Signal Mountain Boulevard | 3 mi | 4m |
| US 27 | 2.4 mi | 3m |
| Signal Mountain Road | 1.6 mi | 2m |
| West Martin Luther King Boulevard | 0.3 mi | <1m |
| Taft Highway | <0.1 mi | <1m |
| Mississippi Avenue | <0.1 mi | <1m |
Longest stretch:
Signal Mountain Boulevard
— 3 mi, about 4m
Turn-by-Turn Driving Directions
Step-by-step road directions between Signal Mountain, TN and Chattanooga, TN.
1
Start on Mississippi Avenue
189 ft
·
17 sec
·
Mississippi Avenue
2
Turn sharp right onto US 127
302 ft
·
7 sec
·
Taft Highway
3
Continue on US 127
3.0 mi
·
4 min
·
Signal Mountain Boulevard
4
Continue on US 127
1.6 mi
·
2 min
·
Signal Mountain Road
5
Take the ramp
0.3 mi
·
44 sec
6
Merge onto US 27
2.4 mi
·
3 min
·
US 27
7
Take the exit
0.2 mi
·
40 sec
Exit 1A
Toward Downtown
8
Turn straight onto West Martin Luther King Boulevard
0.3 mi
·
45 sec
·
West Martin Luther King Boulevard
Use the straight lane.
9
Arrive at destination
TN 8
Heads-up: tricky spots
4 of 44 decision points cluster between mile 0 and 7.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip
|
~0m in
|
US 127 / Taft Highway
Turn sharp right onto US 127 / Taft Highway
Sharp turn - reduce speed on approach
3
5 mi into trip
|
~8m in
|
US 27
Merge onto US 27
Merge point - match speed before joining
5
7.4 mi into trip
|
~11m in
Take the exit toward Downtown
Exit ramp - move to the correct lane early
Exit 1A
Toward Downtown
4
7.6 mi into trip
|
~11m in
|
West Martin Luther King Boulevard
Turn straight onto West Martin Luther King Boulevard
Lane positioning matters here
Use the straight lane.
Fuel & Cost
Regular Gas
$1.24 one way
$2.47 round trip
$3.97/gal
25.4 MPG avg
3 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $1.36 | $2.71 |
| premium | $4.89 | $1.52 | $3.04 |
| diesel | $5.61 | $1.74 | $3.49 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$1
Estimated CO2 emission: 2.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $1 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 2.4 | 0 | $0.83 | $0.38 |
| Efficient EV | 2 | 0 | $0.69 | $0.32 |
| EV Truck/SUV | 3.2 | 0 | $1.11 | $0.51 |
Gas CO2
3 kg
EV CO2
1 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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.
Destination
Chattanooga, TN
Morning in Chattanooga on Sunday
Local time
11:57 AM
EDT
Current temp
84°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
12m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This route offers a mixed drive experience, with about 30% of the journey on highway conditions. You'll encounter stretches on Signal Mountain Boulevard, including the longest uninterrupted segment of 3 miles. The road profile suggests a blend of local streets and faster thoroughfares like US 27. Expect the character of the drive to shift as you transition from the mountain roads to the approach into Chattanooga.
30% highway, the rest on surface roads — varied driving throughout.
9 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 3 mi on Signal Mountain Boulevard.
How Hard Is This Drive?
3/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near US 127 / Taft Highway.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 12m drive. You will face about 4 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (US 127 / Taft Highway): Sharp turn - reduce speed on approach; at 5 miles (US 27): Merge point - match speed before joining; at 7.4 miles: Exit ramp - move to the correct lane early.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
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 Signal Mountain, TN to Chattanooga, TN, road signs begin pointing toward Downtown along the way.
Downtown
7.4 mi in
|
~11m
About the Cities
Arriving in Chattanooga, TN
Full guide →Chattanooga is the 4th largest city in Tennessee. It is the seat of Hamilton County. It is in Southeast Tennessee on the Tennessee River and near the border of Georgia. It was immortalized in the popular 1941 song "Chattanooga Choo Choo", made famous by Glenn Miller.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 12m. Total distance: 7.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
12m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (30%). Straightforward navigation.
Scenic Drive
Mixed highway & surface route profile.
Frequently Asked Questions
The longest stretch is about 3 miles on Signal Mountain Boulevard. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (US 127 / Taft Highway): Sharp turn - reduce speed on approach; at 5 miles (US 27): Merge point - match speed before joining; at 7.4 miles: Exit ramp - move to the correct lane early.
Yes. A round trip is manageable in a single day if you plan a break at Chattanooga, TN before heading back.
How this page is built
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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