How far is Round Rock, TX from Corpus Christi, TX?

The driving distance from Round Rock, TX to Corpus Christi, TX is about 254 miles (408.7 km), with a travel time of about 03h 31m by car.

  • The straight-line flight distance is about 187.8 miles (302.3 km).
  • For a round trip, plan for roughly 07h 03m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
253.94 mi
03h 31m
Flight
187.86 mi
302.33 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Round Rock.

Flight Distance

Direct air line
187.86 mi
Kilometers
302.33 km
Flight Time
00h 22m

Driving Distance

Road route
253.94 mi
Kilometers
408.67 km
Drive Time
03h 31m

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 03h 31m.

Arrival Snapshot
Arrive in Corpus Christi
Sun, May 17, 11:07 AM CDT
Return by in Round Rock
Sun, May 17, 2:38 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Round Rock
2026-05-17T07:35
Arrive Corpus Christi
Sun, May 17, 11:07 AM CDT
Route Timing
03h 31m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
9:32 AM to 11:32 AM CDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
9:56 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Round Rock
9:00 PM CDT
Early departure recommended

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Nixon
TX

37th President of the United States of America (1913-1994)

From Round Rock
108.9 mi
01h 45m
To Corpus Christi
145 mi
01h 45m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
75°F
Overnight

Mostly Cloudy

Starts
Sun, May 17 4:00 AM CDT
Wind
10 mph S
Destination
82°F
Sunday

Partly Sunny

Starts
Sun, May 17 6:00 AM CDT
Wind
24 mph SE

Driving Route Map

The map below follows the saved road route between Round Rock and Corpus Christi.

Turn-by-Turn Driving Directions

Step-by-step road directions between Round Rock and Corpus Christi.

  1. 1

    Start on South Mays Street

    1 mi · 2 min · South Mays Street

  2. 2

    Turn left onto Gattis School Road

    1.2 mi · 2 min · Gattis School Road

  3. 3

    Turn right onto South A W Grimes Boulevard

    1.6 km · 2 min · South A W Grimes Boulevard

  4. 4

    Turn left onto Louis Henna Boulevard

    1025 ft · 20 sec · Louis Henna Boulevard

  5. 5

    Take the ramp slight left toward TX 45 Toll East

    1061 ft · 26 sec

  6. 6

    Merge slight left onto State Highway 45 North

    3 mi · 3 min · State Highway 45 North

  7. 7

    Keep slight right to continue on TX 45 Toll South, TX 130 Toll South: Austin

    1.3 km · 2 min

  8. 8

    Merge slight left onto Pickle Parkway

    40.9 mi · 38 min · Pickle Parkway

  9. 9

    Take the exit slight right toward US 183 South: Lockhart

    1219 ft · 30 sec

  10. 10

    Continue on United States Highway 183

    2699 ft · 35 sec · United States Highway 183

  11. 11

    Continue on North Colorado Street

    4.9 mi · 9 min · North Colorado Street

  12. 12

    Continue on US 183

    10.1 mi · 12 min · US 183

  13. 13

    Continue on North Magnolia Avenue

    4.2 mi · 7 min · North Magnolia Avenue

  14. 14

    Continue straight

    51.2 mi · 57 min

  15. 15

    Turn slight left onto Farm-to-Market Road 792

    8.4 mi · 11 min · Farm-to-Market Road 792

  16. 16

    Continue on East Main Street

    1.3 km · 1 min · East Main Street

  17. 17

    Turn left onto South Sunset Strip Drive

    1.2 mi · 1 min · South Sunset Strip Drive

  18. 18

    Continue on South US Highway 181

    40.2 mi · 46 min · South US Highway 181

  19. 19

    Continue on North 8th Street

    1.3 km · 56 sec · North 8th Street

  20. 20

    Continue on US Highway 181 South

    16.1 mi · 18 min · US Highway 181 South

  21. 21

    Continue on State Highway 89

    4.1 mi · 5 min · State Highway 89

  22. 22

    Continue on US Highway 181

    5.9 mi · 7 min · US Highway 181

  23. 23

    Continue on Railroad Avenue

    1.3 mi · 2 min · Railroad Avenue

  24. 24

    Continue on US Highway 181

    17.4 mi · 19 min · US Highway 181

  25. 25

    Take the exit slight right

    1912 ft · 44 sec

  26. 26

    Turn slight right

    1793 ft · 56 sec

  27. 27

    Take the ramp slight left

    2474 ft · 1 min

  28. 28

    Merge slight left

    1548 ft · 29 sec

  29. 29

    Continue on Interstate Highway 37

    118 m · 10 sec · Interstate Highway 37

  30. 30

    Continue on Interstate Highway 37

    135 m · 15 sec · Interstate Highway 37

  31. 31

    Continue straight

    147 m · 9 sec

  32. 32

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Round Rock and Corpus Christi.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
32 steps
6 turns on the saved route
Ramps & Exits
7
3 merges, 4 ramps or exits
Navigation Density
12.6 / 100 mi
Decision points by distance
Main Roads
North Magnolia Avenue
55.4 mi · 22%
Pickle Parkway
40.9 mi · 16%
South US Highway 181
40.2 mi · 16%
US Highway 181
24.4 mi · 10%
US Highway 181 South
16.1 mi · 6%
US 183
10.1 mi · 4%
Longest Stretch

North Magnolia Avenue

Continue straight

51.2 mi · 00h 57m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
03h 31m
Long day trip
Same-Day Return
07h 04m
Round-trip wheel time
Road vs Air
+66.2 mi
187.8 mi direct line
Halfway Stop
Nixon
01h 45m from Round Rock
Leave By
9:56 AM CDT
Early departure recommended
Weather Watch

Mostly Cloudy leaving Round Rock and Partly Sunny near Corpus Christi.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Round Rock to Corpus Christi?

The road trip is about 254 miles (408.7 km) and usually takes 03h 31m in normal driving conditions.

Is this a same-day trip or an overnight route?

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Nixon is a useful midpoint, sitting about 108.9 miles from Round Rock and 145 miles from Corpus Christi.

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

The direct path is about 187.8 miles (302.3 km), while the road route adds roughly 66.2 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:56 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $33.86 one way or $67.72 round trip. Estimated CO2 is about 79.6 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Cloudy around Round Rock and Partly Sunny near Corpus Christi.

Stop Ideas Near Nixon

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

Mid-route Guidance
Local place coverage is thin around Nixon, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

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

RAIL

San Marcos Station

70 mi away
338 South Guadalupe St.
RAIL

San Antonio Station

71 mi away
350 Hoefgen Street
RAIL

Austin

111 mi away
250 North Lamar Blvd.

Flight Path Map

This map shows the direct air route between Round Rock and Corpus Christi. Straight-line distance: 187.86 mi (302.33 km).

Round Rock

#1 Round Rock

The fourth most populous city in Williamson County, Texas.

Population137,575
Coordinates30.5082600, -97.6789000
Altitude224
CountryUnited States
Corpus Christi

#2 Corpus Christi

The second most populous city in Texas and the center of the Corpus Christi metropolitan area.

Population327,248
Coordinates27.8005800, -97.3963800
Altitude2
CountryUnited States
Start: South Mays Street (-97.678712, 30.508316)
End: I 37 (-97.396427, 27.800658)

Estimated Travel Time

Distance: 409 km by road

SpeedTime
30 mph (48.3 km/h)08h 27m
40 mph (64.37 km/h)06h 20m
50 mph (80.47 km/h)05h 04m
60 mph (96.56 km/h)04h 13m
70 mph (112.65 km/h)03h 37m
80 mph (129 km/h)03h 10m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
8.96 gal
33.92 L · about $33.86
Round trip
$67.72
17.92 gal · 67.84 L
Estimated CO2
79.6 kg one way
Round trip: 159.3 kg / 351 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.78 $33.86 $67.72
Mid-grade $4.25 $38.10 $76.20
Premium $4.59 $41.14 $82.27
Diesel $3.99 $35.78 $71.55

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 · May 17, 2026

There is no time difference between Round Rock and Corpus Christi. The current time is 07:35:43.

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.