How far is Round Rock, TX from Amarillo, TX?
The driving distance from Round Rock, TX to Amarillo, TX is about 484.8 miles (780.2 km), with a travel time of about 07h 26m by car.
- The straight-line flight distance is about 405.1 miles (651.9 km).
- For a round trip, plan for roughly 14h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 07h 26m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Mostly Sunny
Areas Of Fog
Driving Route Map
The map below follows the saved road route between Round Rock and Amarillo.
Turn-by-Turn Driving Directions
Step-by-step road directions between Round Rock and Amarillo.
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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
1498 ft · 37 sec · Round Rock Avenue
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4
Turn right onto North Interstate 35
1544 ft · 24 sec · North Interstate 35
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5
Take the ramp slight left toward I 35 North
1143 ft · 28 sec
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6
Merge slight left onto Purple Heart Trail
7.3 mi · 8 min · Purple Heart Trail
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7
Take the exit slight right toward TX 29: Burnet
1541 ft · 38 sec
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8
Turn straight onto South Interstate 35
2691 ft · 1 min · South Interstate 35
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9
Turn left onto West University Avenue
3 mi · 4 min · West University Avenue
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10
Continue on TX 29 West
1.9 mi · 2 min · TX 29 West
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11
Continue on West State Highway 29
6.4 mi · 8 min · West State Highway 29
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12
Turn right onto North US Highway 183
36.1 mi · 39 min · North US Highway 183
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13
Continue on South Key Avenue
2.3 mi · 5 min · South Key Avenue
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14
Continue on North US Highway 281
965 ft · 15 sec · North US Highway 281
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15
Keep slight left to continue on North US Highway 183
36.9 mi · 40 min · North US Highway 183
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16
At the end of the road, turn left
30.4 mi · 35 min
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17
Turn left onto Early Boulevard
1.7 mi · 2 min · Early Boulevard
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18
Continue on East Commerce Street
22 mi · 25 min · East Commerce Street
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19
Keep slight right to continue on Wallis Avenue
7.2 mi · 8 min · Wallis Avenue
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20
Turn right onto East Walnut Street
1.5 km · 1 min · East Walnut Street
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21
Continue on West Walnut Street
1 mi · 2 min · West Walnut Street
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22
Continue on State Highway 153
69 mi · 1 hr 14 min · State Highway 153
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23
Keep slight right to continue on State Highway 153
6 m · 1 sec · State Highway 153
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24
Turn right onto State Highway 70
10.4 mi · 11 min · State Highway 70
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25
Continue on Lamar Street
1.3 km · 1 min · Lamar Street
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26
Turn left onto Northwest Georgia Avenue
670 ft · 17 sec · Northwest Georgia Avenue
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27
Take the ramp slight left toward I 20 West: Midland
104 m · 8 sec
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28
Merge slight left
6 mi · 6 min
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29
Take the exit slight right toward US 84 West: Snyder, Lubbock
1721 ft · 20 sec
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30
Keep slight left
74.2 mi · 1 hr 14 min
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31
Turn right onto South Avenue F
1 mi · 2 min · South Avenue F
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32
Keep slight left to continue on North Avenue F
617 ft · 11 sec · North Avenue F
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33
Turn straight onto Ralls Road
1863 ft · 39 sec · Ralls Road
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34
Turn left onto East 15th Street
734 ft · 17 sec · East 15th Street
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35
Turn right onto North US Highway 84
1 mi · 1 min · North US Highway 84
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36
Continue on Highway 84
20 mi · 20 min · Highway 84
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37
Continue on Trooper Jerry Don Davis Memorial Highway
4.6 mi · 5 min · Trooper Jerry Don Davis Memorial Highway
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38
Continue on East Highway 84
6.8 mi · 7 min · East Highway 84
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39
Continue on Slaton Road
4.5 mi · 6 min · Slaton Road
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40
Take the exit slight right
1302 ft · 27 sec
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41
Turn slight right onto Interstate 27
98 m · 6 sec · Interstate 27
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42
Take the ramp straight
1303 ft · 32 sec
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43
Merge slight left onto Marshall Formby Memorial Highway
109.9 mi · 1 hr 51 min · Marshall Formby Memorial Highway
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44
Continue on Canyon Expressway
13.5 mi · 15 min · Canyon Expressway
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45
Keep slight left to continue on US 87 North
1.5 km · 2 min
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46
Keep slight right to continue on South Fillmore Street
1.1 km · 2 min · South Fillmore Street
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47
Turn right onto East Amarillo Boulevard
32 m · 1 sec · East Amarillo Boulevard
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48
Arrive at your destination
0 m · 1 sec · East Amarillo Boulevard
Car Route Details
A richer read on the saved driving route between Round Rock and Amarillo.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Marshall Formby Memorial Highway
Merge slight left onto Marshall Formby Memorial Highway
110 mi · 01h 51m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Round Rock and Areas Of Fog near Amarillo.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Round Rock to Amarillo?
The road trip is about 484.8 miles (780.2 km) and usually takes 07h 26m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Sweetwater is a useful midpoint, sitting about 242.1 miles from Round Rock and 242.7 miles from Amarillo.
How much longer is the road route than the straight-line distance?
The direct path is about 405.1 miles (651.9 km), while the road route adds roughly 79.7 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 6:00 AM to 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $65.69 one way or $131.37 round trip. Estimated CO2 is about 152.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Round Rock and Areas Of Fog near Amarillo.
Stop Ideas Near Sweetwater
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Mustang Harbor Splash Pad
City of Sweetwater
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sweetwater.
Flight Path Map
This map shows the direct air route between Round Rock and Amarillo. Straight-line distance: 405.05 mi (651.86 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 Amarillo
The second most populous city in Texas Panhandle.
| Population | 199,654 |
| Coordinates | 35.2220000, -101.8313000 |
| Altitude | 1118 |
| Country | United States |
End: East Amarillo Boulevard (-101.8313, 35.221963)
Estimated Travel Time
Distance: 780 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 16h 09m |
| 40 mph (64.37 km/h) | 12h 07m |
| 50 mph (80.47 km/h) | 09h 41m |
| 60 mph (96.56 km/h) | 08h 04m |
| 70 mph (112.65 km/h) | 06h 55m |
| 80 mph (129 km/h) | 06h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.84 | $65.69 | $131.37 |
| Mid-grade | $4.35 | $74.38 | $148.75 |
| Premium | $4.72 | $80.81 | $161.62 |
| Diesel | $5.78 | $98.83 | $197.65 |
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 · Oct 15, 2026