How far is Rio Del Mar, CA from San Diego, CA?

The driving distance from Rio Del Mar, CA to San Diego, CA is about 459.4 miles (739.4 km), with a travel time of about 07h 50m by car.

  • The straight-line flight distance is about 397.9 miles (640.4 km).
  • For a round trip, plan for roughly 15h 40m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
459.45 mi
07h 50m
Flight
397.93 mi
640.41 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Rio Del Mar.

Flight Distance

Direct air line
397.93 mi
Kilometers
640.41 km
Flight Time
00h 48m

Driving Distance

Road route
459.45 mi
Kilometers
739.42 km
Drive Time
07h 50m

Gas Cost Calculator

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Drive time stays fixed at 07h 50m.

Arrival Snapshot
Arrive in San Diego
Thu, Apr 16, 2:26 PM PDT
Return by in Rio Del Mar
Thu, Apr 16, 10:16 PM PDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Rio Del Mar
2026-04-16T06:36
Arrive San Diego
Thu, Apr 16, 2:26 PM PDT
Route Timing
07h 50m
One way by road
Best Departure Window
6:00 AM to 7:30 AM PDT
Treat this as a longer travel day
Arrive between
1:50 PM to 3:20 PM PDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
8:20 PM PDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in Rio Del Mar
8:00 PM PDT
Overnight-style route

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Greenfield
CA

City in Monterey County, California, United States

From Rio Del Mar
228.3 mi
03h 55m
To San Diego
231.2 mi
03h 55m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
69°F
Thursday

Sunny

Starts
Thu, Apr 16 6:00 AM PDT
Wind
3 to 14 mph NNW
Destination
70°F
Thursday

Partly Sunny

Starts
Thu, Apr 16 6:00 AM PDT
Wind
0 to 15 mph SW

Driving Route Map

The map below follows the saved road route between Rio Del Mar and San Diego.

Turn-by-Turn Driving Directions

Step-by-step road directions between Rio Del Mar and San Diego.

  1. 1

    Start on Rio del Mar Boulevard

    1.3 km · 1 min · Rio del Mar Boulevard

  2. 2

    Continue on Rio del Mar Boulevard

    128 m · 8 sec · Rio del Mar Boulevard

  3. 3

    Take the ramp slight right

    1132 ft · 28 sec

  4. 4

    Merge slight left onto Cabrillo Highway

    6.1 mi · 7 min · Cabrillo Highway

  5. 5

    Take the exit slight right toward CA 152: Watsonville, Gilroy

    1 km · 1 min

  6. 6

    Continue on Main Street

    1.4 mi · 2 min · Main Street

  7. 7

    Continue on Main Street

    2286 ft · 52 sec · Main Street

  8. 8

    Turn left onto East Beach Street

    2840 ft · 1 min · East Beach Street

  9. 9

    Turn right onto Blackburn Street

    1572 ft · 50 sec · Blackburn Street

  10. 10

    Turn left onto East Riverside Drive

    68 m · 8 sec · East Riverside Drive

  11. 11

    Continue on Riverside Road

    1.3 km · 1 min · Riverside Road

  12. 12

    Enter the roundabout and take exit 1 toward Riverside Road

    28 m · 1 sec · Riverside Road

  13. 13

    Exit the roundabout onto Riverside Road

    8.6 mi · 12 min · Riverside Road

  14. 14

    Continue on Chittenden Road

    2.6 mi · 4 min · Chittenden Road

  15. 15

    Take the exit slight right

    2444 ft · 31 sec

  16. 16

    Merge slight left onto El Camino Real

    2.4 mi · 3 min · El Camino Real

  17. 17

    Continue on South Valley Freeway

    3.1 mi · 4 min · South Valley Freeway

  18. 18

    Take the exit slight right toward CA 25 East

    1235 ft · 29 sec

  19. 19

    At the end of the road, turn left onto Bloomfield Avenue

    1.1 km · 58 sec · Bloomfield Avenue

  20. 20

    Continue on Bloomfield Avenue

    3.2 mi · 5 min · Bloomfield Avenue

  21. 21

    Turn right onto Pacheco Pass Highway

    35.8 mi · 43 min · Pacheco Pass Highway

  22. 22

    Take the exit slight right toward I 5: Los Angeles

    3148 ft · 1 min

  23. 23

    Merge slight left onto Westside Freeway

    181.1 mi · 3 hr 14 min · Westside Freeway

  24. 24

    Keep slight right

    58.4 mi · 1 hr 7 min

  25. 25

    Keep slight left to continue on Golden State Freeway

    4.1 mi · 5 min · Golden State Freeway

  26. 26

    Keep slight right to continue on I 405 South

    1354 ft · 18 sec

  27. 27

    Keep slight left

    24.7 mi · 29 min

  28. 28

    Keep slight left to continue on Golden State Freeway

    1.3 mi · 2 min · Golden State Freeway

  29. 29

    Merge slight left onto Santa Ana Freeway

    25.7 mi · 30 min · Santa Ana Freeway

  30. 30

    Keep slight right to continue on Santa Ana Freeway

    1241 ft · 16 sec · Santa Ana Freeway

  31. 31

    Take the exit slight right toward Broadway, Main Street, Santa Ana

    1.3 km · 57 sec

  32. 32

    Keep slight left

    788 ft · 10 sec

  33. 33

    Keep slight left to continue on I 5 South

    981 ft · 13 sec

  34. 34

    Merge slight left onto Santa Ana Freeway

    1.3 km · 54 sec · Santa Ana Freeway

  35. 35

    Keep slight right to continue on Santa Ana Freeway

    1.2 km · 52 sec · Santa Ana Freeway

  36. 36

    Keep slight right to continue on Santa Ana Freeway

    1.2 mi · 1 min · Santa Ana Freeway

  37. 37

    Take the exit slight right toward Newport Avenue

    1.2 km · 1 min

  38. 38

    Turn right onto Newport Avenue

    1943 ft · 44 sec · Newport Avenue

  39. 39

    Turn left onto Walnut Avenue

    2.2 mi · 4 min · Walnut Avenue

  40. 40

    Turn left onto Jamboree Road

    2595 ft · 38 sec · Jamboree Road

  41. 41

    Take the exit slight right toward I 5 South

    1479 ft · 21 sec

  42. 42

    Merge slight left onto Santa Ana Freeway

    5.5 mi · 6 min · Santa Ana Freeway

  43. 43

    Keep slight left to continue on Santa Ana Freeway

    1.3 km · 56 sec · Santa Ana Freeway

  44. 44

    Merge slight right onto San Diego Freeway

    76.5 mi · 1 hr 29 min · San Diego Freeway

  45. 45

    Take the exit slight right toward Front Street, Civic Center, 2nd Avenue

    1164 ft · 28 sec

  46. 46

    Keep slight right to continue on Front Street, Civic Center

    592 ft · 15 sec

  47. 47

    Continue on Front Street

    2662 ft · 2 min · Front Street

  48. 48

    Arrive at your destination

    0 m · 1 sec · Front Street

Car Route Details

A richer read on the saved driving route between Rio Del Mar and San Diego.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
48 steps
10 turns on the saved route
Ramps & Exits
18
7 merges, 11 ramps or exits
Navigation Density
10.4 / 100 mi
Decision points by distance
Main Roads
Westside Freeway
239 mi · 52%
San Diego Freeway
76.5 mi · 17%
Pacheco Pass Highway
35.8 mi · 8%
Santa Ana Freeway
35 mi · 8%
I 405 South
25 mi · 5%
Riverside Road
9.47 mi · 2%
Longest Stretch

Westside Freeway

Merge slight left onto Westside Freeway

181 mi · 03h 14m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
07h 50m
Overnight route
Same-Day Return
15h 40m
Round-trip wheel time
Road vs Air
+61.5 mi
397.9 mi direct line
Halfway Stop
Greenfield
03h 55m from Rio Del Mar
Leave By
8:20 PM PDT
Overnight-style route
Weather Watch

Sunny leaving Rio Del Mar and Partly Sunny near San Diego.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Rio Del Mar to San Diego?

The road trip is about 459.4 miles (739.4 km) and usually takes 07h 50m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Greenfield is a useful midpoint, sitting about 228.3 miles from Rio Del Mar and 231.2 miles from San Diego.

How much longer is the road route than the straight-line distance?

The direct path is about 397.9 miles (640.4 km), while the road route adds roughly 61.5 extra miles because roads do not follow the straight air line.

When is the best time to leave for this route?

A good departure window is usually 6:00 AM to 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $93.52 one way or $187.03 round trip. Estimated CO2 is about 144.1 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Rio Del Mar and Partly Sunny near San Diego.

Stop Ideas Near Greenfield

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Greenfield, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Greenfield.

RAIL

Bakersfield

12 mi away
601 Truxtun Ave
RAIL

Wasco station

47 mi away
700 G Street
BUS

Tehachapi, California

52 mi away
Westside of Mullbery Street
BUS

Mojave, California

79 mi away
15900 Sierra Highway

Flight Path Map

This map shows the direct air route between Rio Del Mar and San Diego. Straight-line distance: 397.93 mi (640.41 km).

Rio Del Mar

#1 Rio Del Mar

Census-designated place in Santa Cruz County, California

Population9,216
Coordinates36.9682800, -121.9002300
Altitude44
CountryUnited States
San Diego

#2 San Diego

The eighth most populous city in the United States and the center of the San Diego metropolitan area.

Population1,422,420
Coordinates32.7157100, -117.1647200
Altitude20
CountryUnited States
Start: Rio del Mar Boulevard (-121.900376, 36.968397)
End: Front Street (-117.164717, 32.71571)

Estimated Travel Time

Distance: 739 km by road

SpeedTime
30 mph (48.3 km/h)15h 18m
40 mph (64.37 km/h)11h 29m
50 mph (80.47 km/h)09h 11m
60 mph (96.56 km/h)07h 39m
70 mph (112.65 km/h)06h 33m
80 mph (129 km/h)05h 43m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
16.21 gal
61.37 L · about $93.52
Round trip
$187.03
32.42 gal · 122.74 L
Estimated CO2
144.1 kg one way
Round trip: 288.1 kg / 635 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $5.77 $93.52 $187.03
Mid-grade $6.07 $98.33 $196.66
Premium $6.24 $101.20 $202.40
Diesel $7.57 $122.66 $245.32

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in California · Apr 16, 2026

There is no time difference between Rio Del Mar and San Diego. The current time is 06:36:03.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.