The drive from San Diego, CA to Rio Dell, CA covers 557.9 miles and takes about 10h 40m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on Westside Freeway, San Diego Freeway, Golden State Freeway for much of the mileage,
and the overall profile is long-distance drive.
The longest uninterrupted segment is about 225.6 miles on Westside Freeway.
At current regular gas prices, budget about $128.23 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
3 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
279 miles from San Diego, CA
A natural place for your longest stop of the day
, about 5h 20m 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.
At 557.9 miles and 10h 40m of driving, this is a route where fuel stops, weather, and timing matter more than any single turn. The main roads are Westside Freeway and San Diego Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 50 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 225.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Westside Freeway and San Diego Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 76.1 miles in near I 5 Truck.
Driving Effort9/10
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 42 significant decision points across 557.9 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 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 144.7 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 476.8 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 42 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
7
76.1 mi into trip|~1h 29m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward Bake Parkway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Bake Parkway
9
144.7 mi into trip|~2h 52m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 5 Truck North, CA 14 Truck
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 161A
Toward I 5 Truck North, CA 14 Truck
8
476.8 mi into trip|~8h 54m in|I 580 / MacArthur Freeway
Keep slight right at fork onto I 580 / MacArthur Freeway toward I 580: Oakland, San Francisco
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: Oakland, San Francisco
9
496.8 mi into trip|~9h 18m in|I 580 / John T. Knox Freeway
Keep slight right at fork onto I 580 / John T. Knox Freeway toward I 580 West: Point Richmond, San Rafael
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 13B
Toward I 580 West: Point Richmond, San Rafael
8
540.1 mi into trip|~10h 11m in|CA 116
Take the exit onto CA 116 toward CA 116 West: Sebastopol, Downtown Cotati
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 481B
Toward CA 116 West: Sebastopol, Downtown Cotati
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between San Diego, CA and Rio Dell, CA, road signs point toward San Francisco and San Rafael.
San Francisco
430.2 mi in|~8h 2m|via I 580
San Rafael
496.8 mi in|~9h 18m|via I 580
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
San Diego Freeway
75.2 mi
1h 27m
Golden State Freeway
50 mi
57m
I 5 Truck
45.3 mi
52m
Santa Ana Freeway
30.4 mi
35m
Redwood Highway
29.7 mi
34m
Arthur H. Breed Junior Freeway
29.6 mi
34m
William Elton Brown Freeway
17 mi
18m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego, CA and Rio Dell, CA.
1
Start on Front Street
26 ft·6 sec·Front Street
2
Turn left onto West Broadway
290 ft·12 sec·West Broadway
3
Turn left onto 1st Avenue
0.6 mi·1 min·1st Avenue
Use the left lane.
4
Take the ramp
0.2 mi·24 sec
Toward I 5 North: Los AngelesUse the left / straight lanes.
5
Merge onto I 5
13 mi·15 min·San Diego Freeway
Use the straight / slight right lanes.
6
Keep slight left at fork onto I 5
36 mi·43 min·San Diego Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 5
18 mi·20 min·San Diego Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 5
7.4 mi·8 min·San Diego Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 5 Truck
1.6 mi·1 min·I 5 Truck
Toward Bake ParkwayUse the straight / slight right lanes.
10
Keep slight right at fork onto I 5 Truck
6.0 mi·6 min·I 5 Truck
Use the slight right lane.
11
Take the exit
0.2 mi·16 sec
Exit 100Toward Jamboree RoadUse the slight right lane.
12
Continue on this road
527 ft·11 sec·this road
13
Turn right onto Jamboree Road
0.1 mi·18 sec·Jamboree Road
Use the left / right lanes.
14
Turn left onto El Camino Real
2.2 mi·4 min·El Camino Real
Use the left lane.
15
Turn left onto Newport Avenue
357 ft·13 sec·Newport Avenue
Use the left lane.
16
Take the ramp
0.2 mi·16 sec
Toward I 5 North: Los Angeles
17
Merge onto I 5
1.3 mi·1 min·Santa Ana Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto I 5
1.7 mi·1 min·Santa Ana Freeway
19
Keep slight right at fork onto I 5
9.4 mi·10 min·Santa Ana Freeway
Use the slight right lane.
20
Keep slight right at fork onto I 5
18 mi·20 min·Santa Ana Freeway
Use the straight / slight right lanes.
21
Keep slight right at fork onto I 5
25 mi·29 min·Golden State Freeway
Use the straight / slight right lanes.
22
Keep slight left at fork onto I 5
2.2 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
23
Keep slight right at fork onto I 5 Truck
1.5 mi·1 min·I 5 Truck
Exit 161AToward I 5 Truck North, CA 14 TruckUse the straight / slight right lanes.
24
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
25
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
26
Keep slight right at fork onto I 5
226 mi·4 hr 1 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
27
Keep slight left at fork onto I 580
16 mi·17 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
28
Keep slight right at fork onto I 580 Bypass
1.1 mi·1 min·William Elton Brown Freeway
29
Merge onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
30
Keep slight right at fork onto I 580
12 mi·13 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
31
Keep slight right at fork onto I 580
8.3 mi·9 min·MacArthur Freeway
Toward I 580: Oakland, San FranciscoUse the slight left / slight right lanes.
32
Keep slight left at fork onto I 580
8.3 mi·9 min·MacArthur Freeway
Use the straight / slight right lanes.
33
Continue on I 80; I 580
3.3 mi·4 min·Eastshore Freeway
Use the straight / slight right lanes.
34
Keep slight right at fork onto I 580
13 mi·17 min·John T. Knox Freeway
Exit 13BToward I 580 West: Point Richmond, San RafaelUse the straight / slight right lanes.
35
Keep slight left at fork
0.7 mi·54 sec
Exit 1AToward US 101 North: San Rafeal
36
Merge onto US 101
30 mi·34 min·Redwood Highway
Use the straight / slight right lanes.
37
Take the exit onto CA 116
0.3 mi·44 sec·CA 116
Exit 481BToward CA 116 West: Sebastopol, Downtown CotatiUse the straight / slight right lanes.
38
Continue on CA 116
7.7 mi·11 min·Gravenstein Highway
Use the left lane.
39
Continue on CA 116
0.7 mi·1 min·Petaluma Avenue
Use the straight / left lanes.
40
Turn left onto CA 116
435 ft·11 sec·McKinley Avenue
Use the left / straight / right lanes.
41
Turn right onto CA 116
0.2 mi·17 sec·North Main Street
42
Turn slight left onto CA 116
0.5 mi·48 sec·Healdsburg Avenue
43
Continue on CA 116
5.7 mi·8 min·Gravenstein Highway North
44
Continue on CA 116
0.3 mi·31 sec·Front Street
45
Turn right onto Mirabel Road
1.4 mi·2 min·Mirabel Road
Use the right lane.
46
Turn left onto River Road
0.7 mi·1 min·River Road
47
Turn left onto Rio Vista Road
325 ft·17 sec·Rio Vista Road
Use the left lane.
48
At end of road, turn right onto Rio Vista Road
0.3 mi·1 min·Rio Vista Road
49
Turn right onto Westside Road
136 ft·6 sec·Westside Road
50
Arrive at destination
Westside Road
Trip Plan
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 3 meaningful breaks for fuel, food, and rest.
The halfway point lands around 279 miles from San Diego, CA, or about 5h 20m into the drive.
The longest continuous stretch on this route runs about 225.6 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 123 miles or 2h 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 279 miles or 5h 20m 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 279 miles or 5h 20m
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 9h 19m
Traffic, exits, and arrival timing usually matter more near Rio Dell, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving San Diego, 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 Diego, CA
Aim for roughly 279 miles and 5.3 hours of wheel time on this day.
Day 2
Finish the approach into Rio Dell, CA
Aim for roughly 279 miles and 5.3 hours of wheel time on this day.
Your first comfortable stop window is around 123 miles from San Diego, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 3 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 225.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 279 mi from San Diego, CA
· 5h 20m into the drive
The midpoint is around 279 miles from San Diego, CA, which is a good place for a longer meal and fuel stop.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 279 miles or 5.3 hours on the road.
Final-third reset
Rest stop
Plan one more short stretch-and-water break in the final third of the drive so the last arrival window feels easier.
Arriving in Rio Dell, CA
The final approach into Rio Dell, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Rio Dell, CA.
On a multi-day trip, keep the last day a little lighter so you reach Rio Dell, CA with some flexibility left in the schedule.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
1 mi from route
~3 min detour
Free
near mile 500.2
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...
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...
9 mi from route
~22 min detour
Free
near mile 500.2
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,...
13 mi from route
~32 min detour
$15
near mile 519.4
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...
15 mi from route
~37 min detour
Free
near mile 500.2
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...
18 mi from route
~45 min detour
Free
near mile 519.4
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$128.23 one way
$256.46 round trip
$5.84/gal25.4 MPG avg195 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$132.14
$264.28
premium
$6.18
$135.68
$271.35
diesel
$5.61
$123.18
$246.35
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$128
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$258–$368
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 195.2 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $59 in charging
· 2 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
167.4
2
$58.58
$26.78
Efficient EV
139.5
1
$48.82
$22.32
EV Truck/SUV
223.2
2
$78.11
$35.71
Gas CO2
195 kg
EV CO2
65 kg (67% less)
Plan for 2 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 18, 2026
Origin
San Diego, CA
Late night
in San Diego on Saturday
Local time
12:57 AM
PDT
Current temp
56°F
Partly Cloudy
SW 0 to 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 17 at 7:10PM PDT until April 18 at 8:00AM PDT by NWS Eureka CA
Destination
Rio Dell, CA
Late night
in Rio Dell on Saturday
Local time
12:57 AM
PDT
Current temp
--
Unavailable
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.
Road read
10h 40m 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 Diego, CA to Rio Dell, CA covers 557.9 miles and takes about 10h 40m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Westside Freeway, San Diego Freeway, Golden State 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 279 miles on day one.
The midpoint is about 279 miles from San Diego, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $128.23 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 3 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 42 significant decision points across 557.9 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 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 144.7 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 476.8 miles (I 580 / MacArthur Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between San Diego, CA and Rio Dell, CA, road signs point toward San Francisco and San Rafael.
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
