California

Distance from Corona to Ontario

Straight-line distance

12.3mi

Corona, CA and Ontario, CA are 12.3 miles (19.9 km) apart in a straight line. From Corona, the shortest path starts out heading N (350°).

kilometers
19.9
nautical miles
10.7
heading from Corona
350° N
heading from Ontario
170° S
CoronaOntario

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

How far Corona is from Ontario

The great-circle distance between the Census internal points of Corona and Ontario is 12.3 miles, 19.9 km or 10.7 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 12.3 miles, practically the same at this range.

Measurements

Miles
12.3
Kilometers
19.9
Nautical miles
10.7
Bearing from Corona
349.6° N
Bearing arriving at Ontario
349.6°
Bearing from Ontario
169.6° S

Halfway between Corona and Ontario

The great-circle midpoint is at 33.949802, -117.584930 (33°56'59.29"N 117°35'5.75"W). The nearest incorporated place of 1,000 or more people is Eastvale, CA, with 70,751 residents, 0.9 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, Corona gets 14 h 25 min of daylight and Ontario 14 h 26 min; on December 21, 9 h 54 min and 9 h 53 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Ontario has 1.1 times the population of Corona. From July 2020 to July 2024, Corona changed by +2.7% and Ontario by +5.4%. Both are in California.

  1. 01Corona, CA161,540 (+2.7%)
  2. 02Ontario, CA185,285 (+5.4%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Corona from Ontario?

12.3 miles, 19.9 km or 10.7 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Ontario from Corona?

N. The great-circle path leaves Corona on a bearing of 349.6° and arrives at Ontario on 349.6°. The return trip starts on 169.6°.

What is halfway between Corona and Ontario?

The midpoint is at 33.949802, -117.584930. The nearest incorporated place of 1,000+ is Eastvale, CA, 0.9 miles from it.

Is there a time difference between Corona and Ontario?

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

Which is bigger, Corona or Ontario?

Ontario, with 185,285 residents in July 2024 against 161,540 for Corona, 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.