California
Distance from Berkeley to San Mateo
Straight-line distance
21.1mi
Berkeley, CA and San Mateo, CA are 21.1 miles (34.0 km) apart in a straight line. From Berkeley, the shortest path starts out heading S (182°).
- kilometers
- 34.0
- nautical miles
- 18.3
- heading from Berkeley
- 182° S
- heading from San Mateo
- 2° N
Orange line: great-circle path · ring: midpoint · thin lines: county borders
How far Berkeley is from San Mateo
The great-circle distance between the Census internal points of Berkeley and San Mateo is 21.1 miles, 34.0 km or 18.3 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 21.1 miles, practically the same at this range.
Measurements
- Miles
- 21.1
- Kilometers
- 34.0
- Nautical miles
- 18.3
- Bearing from Berkeley
- 181.8° S
- Bearing arriving at San Mateo
- 181.8°
- Bearing from San Mateo
- 1.8° N
Halfway between Berkeley and San Mateo
The great-circle midpoint is at 37.713000, -122.304662 (37°42'46.80"N 122°18'16.78"W). The nearest incorporated place of 1,000 or more people is Alameda, CA, with 78,795 residents, 3.2 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, Berkeley gets 14 h 48 min of daylight and San Mateo 14 h 46 min; on December 21, 9 h 32 min and 9 h 34 min. The two sit at nearly the same latitude, so their day lengths match closely all year.
Population compared
Berkeley has 1.2 times the population of San Mateo. From July 2020 to July 2024, Berkeley changed by -2.0% and San Mateo by -2.5%. Both are in California.
- 01Berkeley, CA121,749 (-2.0%)
- 02San Mateo, CA103,006 (-2.5%)
Questions people ask
How far is Berkeley from San Mateo?
21.1 miles, 34.0 km or 18.3 nautical miles along the great circle between the two Census internal points. Road distance is longer.
Which direction is San Mateo from Berkeley?
S. The great-circle path leaves Berkeley on a bearing of 181.8° and arrives at San Mateo on 181.8°. The return trip starts on 1.8°.
What is halfway between Berkeley and San Mateo?
The midpoint is at 37.713000, -122.304662. The nearest incorporated place of 1,000+ is Alameda, CA, 3.2 miles from it.
Is there a time difference between Berkeley and San Mateo?
Both use America/Los_Angeles, so there is no time difference.
Which is bigger, Berkeley or San Mateo?
Berkeley, with 121,749 residents in July 2024 against 103,006 for San Mateo, 1.2 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.