California
Distance from El Cajon to San Diego
Straight-line distance
10.2mi
El Cajon, CA and San Diego, CA are 10.2 miles (16.4 km) apart in a straight line. From El Cajon, the shortest path starts out heading W (275°).
- kilometers
- 16.4
- nautical miles
- 8.9
- heading from El Cajon
- 275° W
- heading from San Diego
- 95° E
Orange line: great-circle path · ring: midpoint · thin lines: county borders
How far El Cajon is from San Diego
The great-circle distance between the Census internal points of El Cajon and San Diego is 10.2 miles, 16.4 km or 8.9 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 10.2 miles, practically the same at this range.
Measurements
- Miles
- 10.2
- Kilometers
- 16.4
- Nautical miles
- 8.9
- Bearing from El Cajon
- 275.2° W
- Bearing arriving at San Diego
- 275.1°
- Bearing from San Diego
- 95.1° E
Halfway between El Cajon and San Diego
The great-circle midpoint is at 32.808380, -117.048043 (32°48'30.17"N 117°02'52.96"W). The nearest incorporated place of 1,000 or more people is La Mesa, CA, with 60,767 residents, 3.1 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/Los_Angeles, so there is no time difference. On June 21, El Cajon gets 14 h 19 min of daylight and San Diego 14 h 19 min; on December 21, 9 h 59 min and 9 h 59 min. The two sit at nearly the same latitude, so their day lengths match closely all year.
Population compared
San Diego has 13.6 times the population of El Cajon. From July 2020 to July 2024, El Cajon changed by -2.6% and San Diego by +1.4%. Both are in California.
- 01El Cajon, CA103,291 (-2.6%)
- 02San Diego, CA1,404,452 (+1.4%)
Questions people ask
How far is El Cajon from San Diego?
10.2 miles, 16.4 km or 8.9 nautical miles along the great circle between the two Census internal points. Road distance is longer.
Which direction is San Diego from El Cajon?
W. The great-circle path leaves El Cajon on a bearing of 275.2° and arrives at San Diego on 275.1°. The return trip starts on 95.1°.
What is halfway between El Cajon and San Diego?
The midpoint is at 32.808380, -117.048043. The nearest incorporated place of 1,000+ is La Mesa, CA, 3.1 miles from it.
Is there a time difference between El Cajon and San Diego?
Both use America/Los_Angeles, so there is no time difference.
Which is bigger, El Cajon or San Diego?
San Diego, with 1,404,452 residents in July 2024 against 103,291 for El Cajon, 13.6 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.
- 01Census 2024 Gazetteer, places
- 02Census Vintage 2024 subcounty population estimates
- 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
- 04IANA time zone database (clock times and daylight saving rules)
How every number is computed: methodology. Spotted a wrong figure? Report an error.