San Anselmo to San Diego is 514 miles and takes about 9h 43m via Westside Freeway and I 5 Truck, with a fuel budget near $118 and best split over 2 days. This long-distance drive covers the length of California, traveling from the Pacific Coast region down to the same region. While it's a primarily highway route, the 98% highway share means you'll be covering ground efficiently. Consider this trip if you're looking for a straightforward way to get from Northern to Southern California, keeping in mind it's a substantial journey best enjoyed with an overnight stop.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
257 miles from San Anselmo, CA
A natural place for your longest stop of the day
, about 4h 45m into the drive
.
From balmy beaches with a laid-back attitude to a gleaming modern image, San Diego offers much for the tourist to enjoy. Situated on the Southern California seacoast, San Diego is the second largest city in the state, with 1.4 million residents (2020), and has long attracted travelers for its ideal climate, miles of beaches, and location on the Mexican border right across from Tijuana.
But there's much more here than surfer culture and a quick hop across the border. A rich maritime and military heritage lives on in San Diego, which is home to the Pacific Fleet of the United States Navy. The city has also become known for its part in the wildlife conservation movement, owing to the presence of the world-renowned San Diego Zoo and Safari Park and the Scripps Institution of Oceanography. Natural scenery abounds from rocky tidepools and seaside cliffs to desert hills and canyons inland.
This route is predominantly a high-speed highway experience, with 98% of the journey on major freeways like the Westside Freeway and I 5 Truck. You'll encounter stretches where you can maintain consistent speeds, including one significant segment of 224.4 miles on the Westside Freeway without needing to exit. The character remains largely consistent as a long-distance drive, prioritizing forward momentum over varied scenery. Expect a steady flow of traffic, especially as you approach more populated areas.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 42 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Westside Freeway is the longest continuous segment at about 224.4 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Westside Freeway and I 5 Truck. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3 miles in near I 580 / John T. Knox Freeway.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 37 significant decision points across 514 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 3 miles (I 580 / John T. Knox Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.4 miles (I 580 / Interstate Highway 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.6 miles (I 580 / MacArthur Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 37 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
9
3 mi into trip|~5m in|I 580 / John T. Knox Freeway
Keep slight right at fork onto I 580 / John T. Knox Freeway toward I 580: Richmond Bridge, Oakland
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 451B
Toward I 580: Richmond Bridge, Oakland
8
20.4 mi into trip|~27m in|I 580 / Interstate Highway 80
Keep slight left at fork onto I 580 / Interstate Highway 80 toward I 580 East, I 880 South: Downtown Oakland, Hayward, Stockton, Alameda, San Jose
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 580 East, I 880 South: Downtown Oaklan...
8
20.6 mi into trip|~28m in|I 580 / MacArthur Freeway
Keep slight left at fork onto I 580 / MacArthur Freeway toward I 580: Downtown Oakland, Hayward, Stockton
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward I 580: Downtown Oakland, Hayward, Stockt...
8
370.2 mi into trip|~6h 51m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 405 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 158
Toward I 405 South
8
395.2 mi into trip|~7h 20m in|I 5 / Golden State Freeway
Keep slight left at fork onto I 5 / Golden State Freeway toward CA 60 East, I 5 South: Pomona, Soto Street, Santa Ana
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / straight lanes.
Toward CA 60 East, I 5 South: Pomona, Soto Stre...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between San Anselmo, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.
Santa Ana
395.2 mi in|~7h 20m|via I 5
Broadway
422.4 mi in|~7h 52m
Riverside
429.6 mi in|~8h 3m|via Jamboree Road
Main Roads
Road
Distance
Duration
Westside Freeway
224.4 mi
4h
I 5 Truck
83.3 mi
1h 36m
San Diego Freeway
76.5 mi
1h 29m
Santa Ana Freeway
35 mi
40m
Arthur H. Breed Junior Freeway
29.3 mi
33m
William Elton Brown Freeway
17 mi
18m
MacArthur Freeway
16.4 mi
18m
John T. Knox Freeway
13.6 mi
17m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Turn-by-Turn Driving Directions
Step-by-step road directions between San Anselmo, CA and San Diego, CA.
1
Start on this road
30 ft·4 sec·this road
2
Turn right onto Sir Francis Drake Boulevard
0.1 mi·15 sec·Sir Francis Drake Boulevard
3
Turn right onto Red Hill Avenue
0.6 mi·57 sec·Red Hill Avenue
4
Continue on Fourth Street
0.5 mi·49 sec·Fourth Street
5
Keep slight left at fork onto Fourth Street
1.1 mi·2 min·Fourth Street
Use the left lane.
6
Turn right onto Hetherton Street
0.1 mi·17 sec·Hetherton Street
Use the right lane.
7
Take the ramp
0.3 mi·36 sec
Toward US 101 South: San Francisco, OaklandUse the straight / left lanes.
8
Merge onto US 101
0.3 mi·28 sec·Redwood Highway
9
Keep slight right at fork onto I 580
14 mi·17 min·John T. Knox Freeway
Exit 451BToward I 580: Richmond Bridge, OaklandUse the straight / slight right lanes.
10
Merge onto I 80; I 580
3.8 mi·4 min·Eastshore Freeway
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 580
0.3 mi·21 sec·Interstate Highway 80
Toward I 580 East, I 880 South: Downtown Oakland, Hayward, Stockton, Alameda, San JoseUse the straight / slight right lanes.
12
Keep slight left at fork onto I 580
16 mi·18 min·MacArthur Freeway
Toward I 580: Downtown Oakland, Hayward, StocktonUse the slight left / slight right lanes.
13
Merge onto I 580
12 mi·13 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
15
Keep slight right at fork onto I 580
11 mi·11 min·William Elton Brown Freeway
16
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
17
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
19
Keep slight left at fork onto I 5
4.1 mi·4 min·Golden State Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 5 Truck
0.3 mi·17 sec·I 5 Truck
Exit 158Toward I 405 SouthUse the straight / slight right lanes.
21
Keep slight left at fork onto I 5 Truck
25 mi·29 min·I 5 Truck
Use the straight / slight right lanes.
22
Keep slight left at fork onto I 5
1.3 mi·1 min·Golden State Freeway
Toward CA 60 East, I 5 South: Pomona, Soto Street, Santa AnaUse the slight left / straight lanes.
23
Merge onto I 5
26 mi·30 min·Santa Ana Freeway
Use the straight / slight right lanes.
24
Keep slight right at fork onto I 5
0.2 mi·16 sec·Santa Ana Freeway
Use the straight / slight right lanes.
25
Take the exit
0.8 mi·57 sec
Toward Broadway, Main Street, Santa AnaUse the straight / slight right lanes.
26
Keep slight left at fork
0.1 mi·10 sec
Use the straight / slight right lanes.
27
Keep slight left at fork
0.2 mi·12 sec
Toward I 5 South
28
Merge onto I 5
0.8 mi·54 sec·Santa Ana Freeway
29
Keep slight right at fork onto I 5
0.8 mi·52 sec·Santa Ana Freeway
30
Keep slight right at fork onto I 5
1.2 mi·1 min·Santa Ana Freeway
Use the straight / slight right lanes.
31
Take the exit
0.7 mi·1 min
Exit 102Toward Newport AvenueUse the slight right lane.
32
Turn right onto Newport Avenue
0.4 mi·44 sec·Newport Avenue
Use the right lane.
33
Turn left onto Walnut Avenue
2.2 mi·4 min·Walnut Avenue
34
Turn left onto Jamboree Road
0.5 mi·37 sec·Jamboree Road
Toward CA 261 Toll North: Jamboree Road, RiversideUse the left lane.
35
Take the exit
0.3 mi·21 sec
Toward I 5 South
36
Merge onto I 5
5.5 mi·6 min·Santa Ana Freeway
Use the straight / slight right lanes.
37
Keep slight left at fork onto I 5
0.8 mi·55 sec·Santa Ana Freeway
Use the straight / slight right lanes.
38
Merge onto I 5
76 mi·1 hr 29 min·San Diego Freeway
Use the straight / slight right lanes.
39
Take the exit
0.2 mi·28 sec
Exit 17Toward Front Street, Civic Center, 2nd AvenueUse the straight / slight right lanes.
40
Keep slight right at fork
0.1 mi·14 sec
Toward Front Street, Civic Center
41
Continue on Front Street
0.5 mi·1 min·Front Street
Use the straight / left lanes.
42
Arrive at destination
Front Street
Trip Plan
Given the 9h 43m estimated drive time and 514 miles, it's highly recommended to split this trip over 2 days. Aim to depart San Anselmo in the morning to make good progress before finding a stopping point. With 2 recommended stops, you can break up the drive into manageable segments. Keep an eye on your fuel levels, particularly during the longest stretch; plan your refueling stops accordingly to avoid delays. The $118 fuel cost is an estimate, so monitor prices as you travel.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 257 miles from San Anselmo, CA, or about 4h 45m into the drive.
The longest continuous stretch on this route runs about 224.4 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 113 miles or 2h 10m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 257 miles or 4h 45m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 257 miles or 4h 45m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 8h 32m
Traffic, exits, and arrival timing usually matter more near San Diego, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving San Anselmo, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from San Anselmo, CA
Aim for roughly 257 miles and 4.9 hours of wheel time on this day.
Day 2
Finish the approach into San Diego, CA
Aim for roughly 257 miles and 4.9 hours of wheel time on this day.
Your first comfortable stop window is around 113 miles from San Anselmo, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 224.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 257 mi from San Anselmo, CA
· 4h 45m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
4 mi from route
~10 min detour
Free
near mile 17.7
In 1542, Juan Rodriguez Cabrillo climbed out of his boat and onto shore, becoming the first European to set foot on what is now the West Coast of the United States. Cabrillo National Monument not only...
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
Experience a park so rich it supports 19 distinct ecosystems with over 2,000 plant and animal species. Go for a hike, enjoy a vista, have a picnic or learn about the centuries of overlapping history f...
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
8 mi from route
~19 min detour
Free
near mile 17.7
From its thunderous ocean breakers crashing against rocky headlands and expansive sand beaches to its open grasslands, brushy hillsides, and forested ridges, Point Reyes offers visitors over 1500 spec...
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $54 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
154.2
1
$53.97
$24.67
Efficient EV
128.5
1
$44.97
$20.56
EV Truck/SUV
205.6
2
$71.96
$32.90
Gas CO2
180 kg
EV CO2
60 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
San Anselmo, CA
Afternoon
in San Anselmo on Friday
Local time
3:01 PM
PDT
Current temp
66°F
Unavailable
Live forecast
Destination
San Diego, CA
Afternoon
in San Diego on Friday
Local time
3:01 PM
PDT
Current temp
56°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
10 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
9h 43m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from San Anselmo, CA to San Diego, CA covers 514 miles and takes about 9h 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Westside Freeway, I 5 Truck, San Diego Freeway. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 257 miles on day one.
The midpoint is about 257 miles from San Anselmo, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $118.14 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 37 significant decision points across 514 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 3 miles (I 580 / John T. Knox Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.4 miles (I 580 / Interstate Highway 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.6 miles (I 580 / MacArthur Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between San Anselmo, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
