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Trip from Alpharetta, GA to DeKalb County, GA

Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards

Drive Time

40m

Distance

29.2 mi

47 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$5

one way

EV Charging

Unknown

Best Time to Leave

Save up to 10 min
4 AM
0h 37m ★
6 AM
0h 40m
8 AM
0h 47m
10 AM
0h 42m
12 PM
0h 42m
3 PM
0h 43m
5 PM
0h 46m
8 PM
0h 38m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city in north Fulton County, Georgia, United States

Alpharetta, GA

Wikimedia Commons

county in Georgia, United States

DeKalb County, GA

Wikimedia Commons

Trip Overview

This straightforward 29.2-mile drive from Alpharetta, GA to DeKalb County, GA is easily manageable as a single-day trip, taking approximately 40 minutes to complete. You'll primarily navigate along the Atlanta Bypass/The Perimeter, Turner McDonald Parkway, and Haynes Bridge Road, with about 34% of the journey on highways. The estimated fuel cost for this short excursion is around $5, making it an economical option for a quick regional hop within the Southeast. Given its brevity, this route is perfect for a day trip, allowing for flexibility in your schedule and ample time for any necessary stops or detours.

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 40m. Total distance: 29.2 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

40m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (34%). Some complex stretches to watch for.

Scenic Drive

Mixed drive route profile with national parks nearby.

Drive Character

Expect a mixed drive experience on this route, blending highway speeds with more local road conditions. You'll encounter stretches like the 12.8-mile segment on the Atlanta Bypass/The Perimeter, offering a taste of faster travel. The remaining portion of your drive will likely involve navigating through more varied road types, characteristic of urban and suburban environments in Georgia. This means you'll transition between quicker highway sections and slower, more signal-heavy local roads, requiring you to adjust your pace accordingly as you progress toward DeKalb County.

Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 18 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Atlanta Bypass / The Perimeter is the longest continuous segment at about 12.8 miles.

How Hard Is This Drive?

This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near GA 9 / South Main Street.

Driving Effort 9/10

Focused - lots of decisions in a short distance, but it is over quickly

Balances navigation complexity with total wheel time.

This is a short but busy drive. With 13 decision points packed into just 29.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 40m.

Where does it get tricky?

The main spots that need attention: near the start (GA 9 / South Main Street): Lane positioning matters here; at 11.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 12.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 13 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

6
0 mi into trip | ~0m in | GA 9 / South Main Street

Turn left onto GA 9 / South Main Street

Lane positioning matters here

Use the left lane.
7
11.1 mi into trip | ~14m in

Take the exit toward I 285: Chattanooga, Greenville

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Toward I 285: Chattanooga, Greenville
9
12.6 mi into trip | ~16m in

Keep slight left at fork toward I 285 East: Greenville, Augusta

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left / slight right lanes. Exit 4A Toward I 285 East: Greenville, Augusta
8
13.6 mi into trip | ~18m in

Keep slight left at fork toward I 285 East: Greenville, Augusta

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left lane. Toward I 285 East: Greenville, Augusta
8
27.1 mi into trip | ~34m in

Take the exit toward GA 10: Memorial Drive, Avondale Estates

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Exit 41 Toward GA 10: Memorial Drive, Avondale Estates

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between Alpharetta, GA and DeKalb County, GA, road signs point toward Greenville, Augusta, Chattanooga, Birmingham and Avondale Estates.

Greenville

11.1 mi in | ~14m

Augusta

11.9 mi in | ~15m | via US 19

Chattanooga

11.9 mi in | ~15m | via US 19

Birmingham

11.9 mi in | ~15m | via US 19

Avondale Estates

27.1 mi in | ~34m

Main Roads

Road Distance Duration
Atlanta Bypass / The Perimeter 12.8 mi 14m
Turner McDonald Parkway 9.1 mi 10m
Haynes Bridge Road 1.1 mi 1m
US 19 0.7 mi <1m
Durham Park Road 0.6 mi 1m
Camp Road 0.5 mi 1m
South Main Street 0.3 mi <1m
Kensington Road 0.3 mi <1m
Longest stretch: Atlanta Bypass / The Perimeter — 12.8 mi, about 14m

Turn-by-Turn Driving Directions

Step-by-step road directions between Alpharetta, GA and DeKalb County, GA.

1

Start on Academy Street

139 ft · 11 sec · Academy Street
2

Turn left onto GA 9

0.3 mi · 31 sec · South Main Street
Use the left lane.
3

Turn left onto GA 120

0.2 mi · 24 sec · Old Milton Parkway
Use the left lane.
4

Turn right onto Haynes Bridge Road

1.1 mi · 1 min · Haynes Bridge Road
5

Take the ramp

0.4 mi · 56 sec
Toward US 19 South, GA 400 South Use the right lane.
6

Merge onto US 19; GA 400

9.1 mi · 10 min · Turner McDonald Parkway
Use the straight / slight right lanes.
7

Take the exit

0.8 mi · 1 min
Toward I 285: Chattanooga, Greenville Use the straight / slight right lanes.
8

Continue on US 19

0.7 mi · 53 sec · US 19
Exit 4A; 4B Toward I 285 East, I 285 West: Greenville, Augusta, Chattanooga, Birmingham
9

Keep slight left at fork

1.1 mi · 2 min
Exit 4A Toward I 285 East: Greenville, Augusta Use the slight left / slight right lanes.
10

Keep slight left at fork

0.6 mi · 1 min
Toward I 285 East: Greenville, Augusta Use the slight left lane.
11

Merge onto I 285

13 mi · 14 min · Atlanta Bypass / The Perimeter
Use the straight / slight right lanes.
12

Take the exit

0.5 mi · 1 min
Exit 41 Toward GA 10: Memorial Drive, Avondale Estates Use the straight / slight right lanes.
13

Turn right onto GA 10

0.1 mi · 23 sec · Memorial Drive
14

Turn left onto Camp Road

0.1 mi · 23 sec · Camp Road
15

Continue on Camp Road

0.4 mi · 1 min · Camp Road
16

Turn left onto Kensington Road

0.3 mi · 45 sec · Kensington Road
17

Turn left onto Durham Park Road

0.6 mi · 1 min · Durham Park Road
18

Arrive at destination

Durham Park Road

Fuel & Cost

Regular Gas

$4.57 one way

$9.13 round trip

$3.97/gal 25.4 MPG avg 10 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.34 $4.99 $9.99
premium $4.70 $5.40 $10.81
diesel $5.61 $6.45 $12.89

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$5

Estimated CO2 emission: 10.2 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $3 in charging · 0 stops · 70% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 8.8 0 $3.07 $1.40
Efficient EV 7.3 0 $2.55 $1.17
EV Truck/SUV 11.7 0 $4.09 $1.87

Gas CO2

10 kg

EV CO2

3 kg (70% 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.

Forecast as of Apr 15, 2026

Origin

Alpharetta, GA

Late night in Alpharetta on Saturday

Local time

12:08 AM

EDT

Current temp

52°F

Unavailable

Live forecast

Destination

DeKalb County, GA

Late night in DeKalb County on Saturday

Local time

12:08 AM

EDT

Current temp

57°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

5 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

40m 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.

Frequently Asked Questions

The drive from Alpharetta, GA to DeKalb County, GA covers 29.2 miles and takes about 40m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are Atlanta Bypass / The Perimeter, Turner McDonald Parkway, Haynes Bridge Road. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 14.6 miles from Alpharetta, GA. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $4.57 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.

This is a short but busy drive. With 13 decision points packed into just 29.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 40m.

The main spots that need attention: near the start (GA 9 / South Main Street): Lane positioning matters here; at 11.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 12.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Between Alpharetta, GA and DeKalb County, GA, road signs point toward Greenville, Augusta, Chattanooga, Birmingham and Avondale Estates.

Yes. Nearby national parks include Chattahoochee River National Recreation Area and Martin Luther King, Jr. National Historical Park.

How this page is built

Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.

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