Colorado

Distance from Boulder to Centennial

Straight-line distance

36.3mi

Boulder, CO and Centennial, CO are 36.3 miles (58.5 km) apart in a straight line. From Boulder, the shortest path starts out heading SE (145°).

kilometers
58.5
nautical miles
31.6
heading from Boulder
145° SE
heading from Centennial
326° NW
BoulderCentennial

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

How far Boulder is from Centennial

The great-circle distance between the Census internal points of Boulder and Centennial is 36.3 miles, 58.5 km or 31.6 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 36.3 miles, practically the same at this range.

Measurements

Miles
36.3
Kilometers
58.5
Nautical miles
31.6
Bearing from Boulder
145.4° SE
Bearing arriving at Centennial
145.6°
Bearing from Centennial
325.6° NW

Halfway between Boulder and Centennial

The great-circle midpoint is at 39.807811, -105.056939 (39°48'28.12"N 105°03'24.98"W). The nearest incorporated place of 1,000 or more people is Wheat Ridge, CO, with 31,999 residents, 3.5 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 Centennial 14 h 58 min; on December 21, 9 h 20 min and 9 h 22 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Centennial has 1.0 times the population of Boulder. From July 2020 to July 2024, Boulder changed by -1.5% and Centennial by +0.6%. Both are in Colorado.

  1. 01Boulder, CO106,803 (-1.5%)
  2. 02Centennial, CO108,853 (+0.6%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Boulder from Centennial?

36.3 miles, 58.5 km or 31.6 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Centennial from Boulder?

SE. The great-circle path leaves Boulder on a bearing of 145.4° and arrives at Centennial on 145.6°. The return trip starts on 325.6°.

What is halfway between Boulder and Centennial?

The midpoint is at 39.807811, -105.056939. The nearest incorporated place of 1,000+ is Wheat Ridge, CO, 3.5 miles from it.

Is there a time difference between Boulder and Centennial?

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

Which is bigger, Boulder or Centennial?

Centennial, with 108,853 residents in July 2024 against 106,803 for Boulder, 1.0 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.