Texas

Distance from Pasadena to Round Rock

Straight-line distance

161.8mi

Pasadena, TX and Round Rock, TX are 161.8 miles (260.4 km) apart in a straight line. From Pasadena, the shortest path starts out heading WNW (292°).

kilometers
260.4
nautical miles
140.6
heading from Pasadena
292° WNW
heading from Round Rock
111° ESE
PasadenaRound Rock

Orange line: great-circle path · ring: midpoint · thin lines: county borders

How far Pasadena is from Round Rock

The great-circle distance between the Census internal points of Pasadena and Round Rock is 161.8 miles, 260.4 km or 140.6 nautical miles. That is the shortest path over the Earth's surface, computed with the haversine formula on a sphere with the mean Earth radius, 6,371.0 km. A course held on one compass bearing (a rhumb line) would be 161.8 miles, practically the same at this range.

Measurements

Miles
161.8
Kilometers
260.4
Nautical miles
140.6
Bearing from Pasadena
292.5° WNW
Bearing arriving at Round Rock
291.2°
Bearing from Round Rock
111.2° ESE

Halfway between Pasadena and Round Rock

The great-circle midpoint is at 30.096525, -96.401766 (30°05'47.49"N 96°24'6.36"W). The nearest incorporated place of 1,000 or more people is Brenham, TX, with 19,728 residents, 4.3 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.

Time zones and daylight

Both use America/Chicago, so there is no time difference. On June 21, Pasadena gets 14 h 03 min of daylight and Round Rock 14 h 07 min; on December 21, 10 h 14 min and 10 h 10 min. Round Rock is 0.87° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

Pasadena has 1.1 times the population of Round Rock. From July 2020 to July 2024, Pasadena changed by -1.2% and Round Rock by +12.3%. Both are in Texas.

  1. 01Pasadena, TX149,617 (-1.2%)
  2. 02Round Rock, TX135,359 (+12.3%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Pasadena from Round Rock?

161.8 miles, 260.4 km or 140.6 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Round Rock from Pasadena?

WNW. The great-circle path leaves Pasadena on a bearing of 292.5° and arrives at Round Rock on 291.2°. The return trip starts on 111.2°.

What is halfway between Pasadena and Round Rock?

The midpoint is at 30.096525, -96.401766. The nearest incorporated place of 1,000+ is Brenham, TX, 4.3 miles from it.

Is there a time difference between Pasadena and Round Rock?

Both use America/Chicago, so there is no time difference.

Which is bigger, Pasadena or Round Rock?

Pasadena, with 149,617 residents in July 2024 against 135,359 for Round Rock, 1.1 times as many.

Sources and data as of

Data as of: Census 2024 Gazetteer internal points and Vintage 2024 estimates; time zones from Open-Meteo.

  1. 01Census 2024 Gazetteer, places
  2. 02Census Vintage 2024 subcounty population estimates
  3. 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
  4. 04IANA time zone database (clock times and daylight saving rules)

How every number is computed: methodology. Spotted a wrong figure? Report an error.