Colorado

Distance from Boulder to Westminster

Straight-line distance

14.2mi

Boulder, CO and Westminster, CO are 14.2 miles (22.8 km) apart in a straight line. From Boulder, the shortest path starts out heading SE (135°).

kilometers
22.8
nautical miles
12.3
heading from Boulder
135° SE
heading from Westminster
315° NW
BoulderWestminster

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

How far Boulder is from Westminster

The great-circle distance between the Census internal points of Boulder and Westminster is 14.2 miles, 22.8 km or 12.3 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 14.2 miles, practically the same at this range.

Measurements

Miles
14.2
Kilometers
22.8
Nautical miles
12.3
Bearing from Boulder
134.7° SE
Bearing arriving at Westminster
134.8°
Bearing from Westminster
314.8° NW

Halfway between Boulder and Westminster

The great-circle midpoint is at 39.952289, -105.156300 (39°57'8.24"N 105°09'22.68"W). The nearest incorporated place of 1,000 or more people is Louisville, CO, with 20,811 residents, 1.4 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/Denver, so there is no time difference. On June 21, Boulder gets 15 h 01 min of daylight and Westminster 15 h 00 min; on December 21, 9 h 20 min and 9 h 20 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Westminster has 1.1 times the population of Boulder. From July 2020 to July 2024, Boulder changed by -1.5% and Westminster by -1.2%. Both are in Colorado.

  1. 01Boulder, CO106,803 (-1.5%)
  2. 02Westminster, CO115,302 (-1.2%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Boulder from Westminster?

14.2 miles, 22.8 km or 12.3 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Westminster from Boulder?

SE. The great-circle path leaves Boulder on a bearing of 134.7° and arrives at Westminster on 134.8°. The return trip starts on 314.8°.

What is halfway between Boulder and Westminster?

The midpoint is at 39.952289, -105.156300. The nearest incorporated place of 1,000+ is Louisville, CO, 1.4 miles from it.

Is there a time difference between Boulder and Westminster?

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

Which is bigger, Boulder or Westminster?

Westminster, with 115,302 residents in July 2024 against 106,803 for Boulder, 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.