How far is Round Rock, TX from Austin, TX?
The driving distance from Round Rock, TX to Austin, TX is about 19.1 miles (30.8 km), with a travel time of about 00h 24m by car.
- The straight-line flight distance is about 17.1 miles (27.5 km).
- For a round trip, plan for roughly 00h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 24m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Round Rock and Austin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Round Rock and Austin.
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1
Start on South Mays Street
142 m · 19 sec · South Mays Street
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2
Turn left onto West Liberty Avenue
573 ft · 17 sec · West Liberty Avenue
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3
At the end of the road, turn right onto Round Rock Avenue
1915 ft · 52 sec · Round Rock Avenue
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4
Turn sharp left onto North Interstate 35
1228 ft · 20 sec · North Interstate 35
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5
Turn straight onto I 35 South
956 ft · 23 sec
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6
Merge slight left onto Purple Heart Trail
14.8 mi · 16 min · Purple Heart Trail
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7
Keep slight left to continue on Purple Heart Trail
2.4 mi · 3 min · Purple Heart Trail
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8
Take the exit slight right toward 8th–3rd Streets, Huston-Tillotson University
1096 ft · 27 sec
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9
Turn straight onto North Interstate 35
948 ft · 27 sec · North Interstate 35
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10
Turn right onto East 6th Street
2578 ft · 1 min · East 6th Street
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11
Turn left onto Congress Avenue
109 m · 18 sec · Congress Avenue
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12
Turn left onto East 5th Street
8 m · 1 sec · East 5th Street
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13
Arrive at your destination
0 m · 1 sec · East 5th Street
Car Route Details
A richer read on the saved driving route between Round Rock and Austin.
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.
Purple Heart Trail
Merge slight left onto Purple Heart Trail
14.8 mi · 00h 16m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms leaving Round Rock and Chance Showers And Thunderstorms near Austin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Round Rock to Austin?
The road trip is about 19.1 miles (30.8 km) and usually takes 00h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Wells Branch is a useful midpoint, sitting about 9.6 miles from Round Rock and 9.6 miles from Austin.
How much longer is the road route than the straight-line distance?
The direct path is about 17.1 miles (27.5 km), while the road route adds roughly 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.57 one way or $5.14 round trip. Estimated CO2 is about 6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms around Round Rock and Chance Showers And Thunderstorms near Austin.
Stop Ideas Near Wells Branch
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Wells Branch.
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Flight Path Map
This map shows the direct air route between Round Rock and Austin. Straight-line distance: 17.09 mi (27.51 km).
#1 Round Rock
The fourth most populous city in Williamson County, Texas.
| Population | 137,575 |
| Coordinates | 30.5082600, -97.6789000 |
| Altitude | 224 |
| Country | United States |
#2 Austin
The eleventh most populous city in the United States and the center of the Austin metropolitan area.
| Population | 995,484 |
| Coordinates | 30.2671500, -97.7430600 |
| Altitude | 149 |
| Country | United States |
End: East 5th Street (-97.743073, 30.267115)
Estimated Travel Time
Distance: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 38m |
| 40 mph (64.37 km/h) | 00h 28m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 19m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $2.57 | $5.14 |
| Mid-grade | $4.25 | $2.89 | $5.78 |
| Premium | $4.59 | $3.12 | $6.24 |
| Diesel | $3.99 | $2.72 | $5.43 |
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 Texas · 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.