How far is Killeen, TX from Round Rock, TX?
The driving distance from Killeen, TX to Round Rock, TX is about 49.3 miles (79.3 km), with a travel time of about 00h 56m by car.
- The straight-line flight distance is about 42.2 miles (67.9 km).
- For a round trip, plan for roughly 01h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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.
This route works well as a day trip with time at the destination.
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 56m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Killeen and Round Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Round Rock.
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1
Start on the route
23 m · 11 sec
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2
Turn left
25 m · 8 sec
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3
Turn right onto East Veterans Memorial Boulevard
1.5 km · 2 min · East Veterans Memorial Boulevard
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4
Turn left onto South Fort Hood Street
33.8 mi · 38 min · South Fort Hood Street
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5
Take the exit slight right
999 ft · 17 sec
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6
Continue on North Interstate 35
1035 ft · 16 sec · North Interstate 35
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7
Continue on North Interstate 35
2999 ft · 47 sec · North Interstate 35
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8
Take the ramp slight left toward I 35 South: Austin
1852 ft · 45 sec
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9
Merge slight left onto Purple Heart Trail
12.3 mi · 13 min · Purple Heart Trail
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10
Take the exit slight right toward RM 620: McNeil Road
1111 ft · 27 sec
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11
Turn straight onto North Interstate 35
1387 ft · 21 sec · North Interstate 35
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12
Turn left onto Round Rock Avenue
2128 ft · 53 sec · Round Rock Avenue
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13
Enter the roundabout and take exit 1 toward North Blair Street
13 m · 1 sec · North Blair Street
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14
Exit the roundabout onto North Blair Street
58 m · 10 sec · North Blair Street
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15
Turn left onto West Main Street
107 m · 16 sec · West Main Street
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16
Turn right onto South Mays Street
33 m · 3 sec · South Mays Street
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17
Arrive at your destination
0 m · 1 sec · South Mays Street
Car Route Details
A richer read on the saved driving route between Killeen and Round Rock.
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.
South Fort Hood Street
Turn left onto South Fort Hood Street
33.8 mi · 00h 38m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Chance Showers And Thunderstorms leaving Killeen and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Round Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Round Rock?
The road trip is about 49.3 miles (79.3 km) and usually takes 00h 56m 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?
Florence is a useful midpoint, sitting about 24.7 miles from Killeen and 24.6 miles from Round Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 42.2 miles (67.9 km), while the road route adds roughly 7.1 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 CDT. If you want a more comfortable same-day return, try to leave by 4:36 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.58 one way or $13.15 round trip. Estimated CO2 is about 15.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Killeen and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Round Rock.
Stop Ideas Near Florence
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 Florence.
Killeen, Texas
Fort Hood, Texas
Taylor
Temple
Flight Path Map
This map shows the direct air route between Killeen and Round Rock. Straight-line distance: 42.17 mi (67.86 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Round Rock
The fourth most populous city in Williamson County, Texas.
| Population | 137,575 |
| Coordinates | 30.5082600, -97.6789000 |
| Altitude | 224 |
| Country | United States |
End: Round Rock (-97.6789, 30.50826)
Estimated Travel Time
Distance: 79 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 38m |
| 40 mph (64.37 km/h) | 01h 13m |
| 50 mph (80.47 km/h) | 00h 59m |
| 60 mph (96.56 km/h) | 00h 49m |
| 70 mph (112.65 km/h) | 00h 42m |
| 80 mph (129 km/h) | 00h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $6.58 | $13.15 |
| Mid-grade | $4.25 | $7.40 | $14.80 |
| Premium | $4.59 | $7.99 | $15.98 |
| Diesel | $3.99 | $6.95 | $13.90 |
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.