How far is Union City, GA from Roswell, GA?

The driving distance from Union City, GA to Roswell, GA is about 40.9 miles (65.8 km), with a travel time of about 00h 49m by car.

  • The straight-line flight distance is about 31.9 miles (51.3 km).
  • For a round trip, plan for roughly 01h 39m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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
40.91 mi
00h 49m
Flight
31.87 mi
51.29 km direct

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

Learn Distance

Choose another destination from Union City.

Flight Distance

Direct air line
31.87 mi
Kilometers
51.29 km
Flight Time
00h 03m

Driving Distance

Road route
40.91 mi
Kilometers
65.84 km
Drive Time
00h 49m

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 00h 49m.

Arrival Snapshot
Arrive in Roswell
Fri, May 29, 8:26 PM EDT
Return by in Union City
Fri, May 29, 9:15 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Union City
2026-05-29T19:36
Arrive Roswell
Fri, May 29, 8:26 PM EDT
Route Timing
00h 49m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EDT
Aim for a morning departure
Arrive between
8:50 AM to 10:50 AM EDT

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

Leave by
4:50 PM EDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Union City
9:30 PM EDT
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
Vinings
GA

Census designated place in the U.

From Union City
19.3 mi
00h 24m
To Roswell
21.6 mi
00h 24m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
79°F
Friday

Chance Showers And Thunderstorms

Starts
Fri, May 29 6:00 AM EDT
Wind
5 mph E
Destination
80°F
Friday

Showers And Thunderstorms Likely

Starts
Fri, May 29 6:00 AM EDT
Wind
5 to 10 mph E

Driving Route Map

The map below follows the saved road route between Union City and Roswell.

Turn-by-Turn Driving Directions

Step-by-step road directions between Union City and Roswell.

  1. 1

    Start on Bantry Circle

    81 m · 19 sec · Bantry Circle

  2. 2

    Turn left onto Limerick Drive

    539 ft · 30 sec · Limerick Drive

  3. 3

    At the end of the road, turn left onto Kilkenny Drive

    63 m · 11 sec · Kilkenny Drive

  4. 4

    Turn right onto Bally Shannon Drive

    152 m · 28 sec · Bally Shannon Drive

  5. 5

    Turn left onto Flat Shoals Road

    1.8 mi · 4 min · Flat Shoals Road

  6. 6

    Take the ramp left toward I 85 North: Atlanta

    1860 ft · 45 sec

  7. 7

    Merge slight left

    1.8 mi · 2 min

  8. 8

    Take the exit slight right toward I 285: Atlanta Bypass, Atlanta International Airport

    1986 ft · 48 sec

  9. 9

    Keep slight left to continue on I 285 North: Birmingham, Chattanooga

    1.2 mi · 2 min

  10. 10

    Merge slight left onto Atlanta Bypass / The Perimeter

    22.6 mi · 26 min · Atlanta Bypass / The Perimeter

  11. 11

    Take the exit slight right toward Riverside Drive

    1808 ft · 24 sec

  12. 12

    Keep slight left to continue on Riverside Drive

    41 m · 2 sec

  13. 13

    Turn slight right

    65 m · 6 sec

  14. 14

    Turn right onto Riverside Drive Northwest

    146 m · 13 sec · Riverside Drive Northwest

  15. 15

    Turn slight right onto Riverside Drive Northwest

    2924 ft · 1 min · Riverside Drive Northwest

  16. 16

    Turn right onto River Valley Road Northwest

    2865 ft · 1 min · River Valley Road Northwest

  17. 17

    Keep slight right to continue on River Valley Road Northwest

    1.1 km · 2 min · River Valley Road Northwest

  18. 18

    Turn right onto Johnson Ferry Road Northwest

    991 ft · 25 sec · Johnson Ferry Road Northwest

  19. 19

    Continue on Abernathy Road Northwest

    1 km · 1 min · Abernathy Road Northwest

  20. 20

    Turn left onto Roswell Road

    6.4 mi · 12 min · Roswell Road

  21. 21

    Continue on North Atlanta Street

    2899 ft · 1 min · North Atlanta Street

  22. 22

    Keep slight left to continue on North Atlanta Street

    120 m · 10 sec · North Atlanta Street

  23. 23

    Arrive at your destination

    0 m · 1 sec · North Atlanta Street

Car Route Details

A richer read on the saved driving route between Union City and Roswell.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
23 steps
10 turns on the saved route
Ramps & Exits
5
2 merges, 3 ramps or exits
Navigation Density
56.2 / 100 mi
Decision points by distance
Main Roads
Atlanta Bypass / The Perimeter
22.6 mi · 55%
Roswell Road
6.41 mi · 16%
I 85 North
2.18 mi · 5%
Flat Shoals Road
1.82 mi · 4%
River Valley Road Northwest
1.22 mi · 3%
I 285 North
1.16 mi · 3%
Longest Stretch

Atlanta Bypass / The Perimeter

Merge slight left onto Atlanta Bypass / The Perimeter

22.6 mi · 00h 26m

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
00h 49m
Day trip friendly
Same-Day Return
01h 40m
Round-trip wheel time
Road vs Air
+9 mi
31.9 mi direct line
Halfway Stop
Vinings
00h 24m from Union City
Leave By
4:50 PM EDT
Morning start is best
Weather Watch

Chance Showers And Thunderstorms leaving Union City and Showers And Thunderstorms Likely near Roswell.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Union City to Roswell?

The road trip is about 40.9 miles (65.8 km) and usually takes 00h 49m 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?

Vinings is a useful midpoint, sitting about 19.3 miles from Union City and 21.6 miles from Roswell.

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

The direct path is about 31.9 miles (51.3 km), while the road route adds roughly 9 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 EDT. If you want a more comfortable same-day return, try to leave by 4:50 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $5.70 one way or $11.41 round trip. Estimated CO2 is about 12.8 kg one way.

What should you check before leaving?

Before you leave, expect Chance Showers And Thunderstorms around Union City and Showers And Thunderstorms Likely near Roswell.

Stop Ideas Near Vinings

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Vinings and the surrounding midpoint area.
Cafe 55
Coffee break 7.7 mi away

Cafe 55

Atlanta , GA
55 Trinity Ave SW, Atlanta, GA 30303
Rating 3.8/5 10 reviews Cafeteria
Atlanta City Hall
Meeting point 7.7 mi away

Atlanta City Hall

Atlanta , GA
55 Trinity Ave SW, Atlanta, GA 30303
Rating 3.9/5 58 reviews City Hall,City government office
College Park Recycling Drop off Center
Nearby stop 11.5 mi away

College Park Recycling Drop off Center

Atlanta , GA
1904 Harvard Ave, Atlanta, GA 30337
Rating 5.0/5 2 reviews Recycling drop-off location

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Vinings.

RAIL

Peachtree Station

10 mi away
1688 Peachtree Street, NW
RAIL

Gainesville

75 mi away
116 Industrial Boulevard

Flight Path Map

This map shows the direct air route between Union City and Roswell. Straight-line distance: 31.87 mi (51.29 km).

Union City

#1 Union City

City in Fulton County, Georgia, United States

Population22,399
Coordinates33.5870600, -84.5424300
Altitude295
CountryUnited States
Roswell

#2 Roswell

A city in Fulton County, Georgia.

Population95,434
Coordinates34.0231600, -84.3615900
Altitude328
CountryUnited States
Start: Bantry Circle (-84.542437, 33.586794)
End: North Atlanta Street (-84.361558, 34.02316)

Estimated Travel Time

Distance: 66 km by road

SpeedTime
30 mph (48.3 km/h)01h 21m
40 mph (64.37 km/h)01h 01m
50 mph (80.47 km/h)00h 49m
60 mph (96.56 km/h)00h 40m
70 mph (112.65 km/h)00h 35m
80 mph (129 km/h)00h 30m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.44 gal
5.46 L · about $5.70
Round trip
$11.41
2.88 gal · 10.92 L
Estimated CO2
12.8 kg one way
Round trip: 25.6 kg / 56 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.96 $5.70 $11.41
Mid-grade $4.43 $6.38 $12.76
Premium $4.78 $6.88 $13.76
Diesel $5.62 $8.10 $16.20

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 Georgia · May 29, 2026

There is no time difference between Union City and Roswell. The current time is 19:36:42.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

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