Shortest distance between San Marcos and San Diego is 29.55 miles (47.55 km).
Flight distance from San Marcos, CA to San Diego, CA is 29.55 miles. Estimated flight time is 00 hours 04 minutes.
The driving distance from San Marcos, California to San Diego, California is: 35.42 miles (57 km) by car.
Driving from San Marcos to San Diego will take approximately 00 hours 38 minutes.
The distance between San Marcos and San Diego is 57 km if you choose to drive by road. You can go 00 hours 37 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between San Marcos and San Diego. The current time is 16:06:21.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||01 hours 10 minutes|
|40 mph (64.37 km/h)||00 hours 53 minutes|
|50 mph (80.47 km/h)||00 hours 42 minutes|
|60 mph (96.56 km/h)||00 hours 35 minutes|
|70 mph (112.65 km/h)||00 hours 30 minutes|
|75 mph (120.7 km/h)||00 hours 28 minutes|
|80 mph (128.75 km/h)||00 hours 26 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 4.73 liters (1.25 gallon) of gas to cover the route between San Marcos and San Diego.
The estimated cost of gas to go from San Marcos to San Diego is $5.13 (diesel $6.06).
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price per gallon of daily gas for calculations is $4.102 (Diesel $4.849) /gallon. Last changed prices on July 01, 2022.
The place names are translated into coordinates to approximate the distance between San Marcos and San Diego (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.