How far is Fremont, CA from Rancho San Diego, CA?
The driving distance from Fremont, CA to Rancho San Diego, CA is about 486.5 miles (782.9 km), with a travel time of about 09h 20m by car.
- The straight-line flight distance is about 437.5 miles (704.1 km).
- For a round trip, plan for roughly 18h 41m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
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 09h 20m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Place in Kern County California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Patchy Fog then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fremont and Rancho San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fremont and Rancho San Diego.
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1
Start on Mowry Avenue
33 m · 5 sec · Mowry Avenue
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2
Continue on Mowry Avenue
1.4 mi · 3 min · Mowry Avenue
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3
Continue on Mowry Avenue
1067 ft · 24 sec · Mowry Avenue
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4
Take the ramp slight right toward I 880 South: San Jose
1568 ft · 40 sec
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5
Merge slight left onto Nimitz Freeway
13.3 mi · 15 min · Nimitz Freeway
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6
Take the exit right toward US 101 South: Los Angeles
758 ft · 34 sec
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7
Merge slight left onto Bayshore Freeway
32.3 mi · 37 min · Bayshore Freeway
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8
Take the exit slight right toward CA 152 East: 10th Street, Pacheco Pass Road
1539 ft · 40 sec
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9
Turn left onto East 10th Street
108 m · 13 sec · East 10th Street
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10
Continue on Pacheco Pass Highway
40.6 mi · 50 min · Pacheco Pass Highway
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11
Take the exit slight right toward I 5: Los Angeles
3148 ft · 1 min
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12
Merge slight left onto Westside Freeway
181.1 mi · 3 hr 14 min · Westside Freeway
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13
Keep slight right
58.4 mi · 1 hr 7 min
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14
Keep slight left to continue on Golden State Freeway
4.1 mi · 5 min · Golden State Freeway
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15
Keep slight right to continue on I 405 South
1354 ft · 18 sec
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16
Keep slight left
24.7 mi · 29 min
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17
Keep slight left to continue on Golden State Freeway
1.3 mi · 2 min · Golden State Freeway
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18
Merge slight left onto Santa Ana Freeway
25.7 mi · 30 min · Santa Ana Freeway
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19
Keep slight right to continue on Santa Ana Freeway
1241 ft · 16 sec · Santa Ana Freeway
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20
Take the exit slight right toward Broadway, Main Street, Santa Ana
1.3 km · 57 sec
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21
Keep slight left
788 ft · 10 sec
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22
Keep slight left to continue on I 5 South
981 ft · 13 sec
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23
Merge slight left onto Santa Ana Freeway
1.3 km · 54 sec · Santa Ana Freeway
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24
Keep slight right to continue on Santa Ana Freeway
1.2 km · 52 sec · Santa Ana Freeway
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25
Keep slight right to continue on Santa Ana Freeway
1.2 mi · 1 min · Santa Ana Freeway
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26
Take the exit slight right toward Newport Avenue
1.2 km · 1 min
-
27
Turn right onto Newport Avenue
1943 ft · 44 sec · Newport Avenue
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28
Turn left onto Walnut Avenue
2.2 mi · 4 min · Walnut Avenue
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29
Turn left onto Jamboree Road
2595 ft · 38 sec · Jamboree Road
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30
Take the exit slight right toward I 5 South
1479 ft · 21 sec
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31
Merge slight left onto Santa Ana Freeway
5.5 mi · 6 min · Santa Ana Freeway
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32
Keep slight left to continue on Santa Ana Freeway
1.3 km · 56 sec · Santa Ana Freeway
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33
Merge slight right onto San Diego Freeway
62.4 mi · 1 hr 13 min · San Diego Freeway
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34
Take the exit slight left
1.3 km · 55 sec
-
35
Continue on Jacob Dekema Freeway
10 mi · 11 min · Jacob Dekema Freeway
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36
Take the exit slight right toward I 8: Beaches, El Centro
1014 ft · 25 sec
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37
Keep slight left to continue on I 8 East: El Centro
1 km · 1 min
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38
Merge slight left onto Mission Valley Freeway
6 mi · 7 min · Mission Valley Freeway
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39
Take the exit slight right toward Spring Street, Downtown
2036 ft · 28 sec
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40
Turn straight onto Spring Street
1.3 mi · 3 min · Spring Street
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41
Take the ramp slight right toward CA 94 East: Broadway
1194 ft · 29 sec
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42
Keep slight left to continue on CA 94 East
580 ft · 14 sec
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43
Merge slight left onto Martin Luther King Junior Freeway
2.9 mi · 3 min · Martin Luther King Junior Freeway
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44
Continue on Campo Road
1.3 mi · 2 min · Campo Road
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45
Continue on Jamacha Road
2871 ft · 58 sec · Jamacha Road
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46
Turn left onto Fury Lane
1786 ft · 46 sec · Fury Lane
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47
Turn right onto Brabham Street
127 m · 10 sec · Brabham Street
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48
Arrive at your destination
0 m · 1 sec · Brabham Street
Car Route Details
A richer read on the saved driving route between Fremont and Rancho San Diego.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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.
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.
Chance Light Rain leaving Fremont and Patchy Fog then Mostly Sunny near Rancho San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fremont to Rancho San Diego?
The road trip is about 486.5 miles (782.9 km) and usually takes 09h 20m 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?
Buttonwillow is a useful midpoint, sitting about 243.3 miles from Fremont and 243.1 miles from Rancho San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 437.5 miles (704.1 km), while the road route adds roughly 49 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 $99.05 one way or $198.11 round trip. Estimated CO2 is about 152.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Fremont and Patchy Fog then Mostly Sunny near Rancho San Diego.
Stop Ideas Near Buttonwillow
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Buttonwillow.
Wasco station
Bakersfield
Corcoran station
Kettleman City, California
Flight Path Map
This map shows the direct air route between Fremont and Rancho San Diego. Straight-line distance: 437.49 mi (704.08 km).
#1 Fremont
The fifth most populous city in California.
| Population | 234,569 |
| Coordinates | 37.5482700, -121.9885700 |
| Altitude | 17 |
| Country | United States |
#2 Rancho San Diego
Census designated place
| Population | 21,208 |
| Coordinates | 32.7472700, -116.9353000 |
| Altitude | 110 |
| Country | United States |
End: Rancho San Diego (-116.9353, 32.74727)
Estimated Travel Time
Distance: 783 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 16h 12m |
| 40 mph (64.37 km/h) | 12h 09m |
| 50 mph (80.47 km/h) | 09h 43m |
| 60 mph (96.56 km/h) | 08h 06m |
| 70 mph (112.65 km/h) | 06h 56m |
| 80 mph (129 km/h) | 06h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $99.05 | $198.11 |
| Mid-grade | $6.07 | $104.15 | $208.31 |
| Premium | $6.24 | $107.19 | $214.38 |
| Diesel | $7.57 | $129.93 | $259.85 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.