Castro Valley, CA to Long Beach, CA is 380.5 miles and takes about 7h 2m via Westside Freeway and I 5 Truck, with a fuel budget near $86 and enough daylight to finish in a day. This trip stays within California, connecting the Pacific Coast regions. With 99% of the drive on highways, expect a straightforward trip focused on covering ground efficiently. Given the duration, it's a solid choice for a single-day drive, but be prepared for a full day behind the wheel.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
190.2 miles from Castro Valley, CA
A natural place for your longest stop of the day
, about 3h 27m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
224.4 mi
4h
I 5 Truck
58.6 mi
1h 7m
Arthur H. Breed Junior Freeway
29 mi
33m
I 405 Truck
23 mi
26m
San Diego Freeway
18 mi
20m
William Elton Brown Freeway
17 mi
18m
Golden State Freeway
4.1 mi
4m
Long Beach Freeway
2.4 mi
3m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Traffic on I-5
Hour-of-day weekday pattern from 89 FHWA count stations on your route.
Peak
2 PM
~1,926 veh/hr typical
· worst 2,652
Quietest
2 AM
~360 veh/hr
Peak-to-quiet ratio
5.4×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 44 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Castro Valley, CA and Long Beach, CA.
1
Start on Lake Chabot Road
60 ft·4 sec·Lake Chabot Road
2
Turn left onto Castro Valley Boulevard
0.3 mi·34 sec·Castro Valley Boulevard
3
Turn left onto Strobridge Avenue
0.2 mi·21 sec·Strobridge Avenue
Use the straight lane.
4
Take the ramp
0.3 mi·44 sec
Toward I 580 East
5
Merge onto I 580
11 mi·12 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 580
11 mi·11 min·William Elton Brown Freeway
8
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
9
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 5
4.1 mi·4 min·Golden State Freeway
Use the straight / slight right lanes.
12
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.
13
Keep slight right at fork onto I 405 Truck
23 mi·26 min·I 405 Truck
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 405
18 mi·20 min·San Diego Freeway
Use the straight / slight right lanes.
15
Take the exit
377 ft·9 sec
Toward I 710 South: Long BeachUse the slight right lane.
16
Continue on this road
0.3 mi·39 sec·this road
Exit 32BToward I 710 South: Long Beach
17
Merge onto I 710
2.4 mi·3 min·Long Beach Freeway
Use the straight / slight right lanes.
18
Continue on I 710
0.5 mi·40 sec·Seaside Freeway
Use the straight / slight right lanes.
19
Take the exit
0.3 mi·37 sec
Toward Downtown Long Beach, Convention Center, AquariumUse the slight left / straight lanes.
20
Continue on Shoreline Drive
1.3 mi·2 min·Shoreline Drive
21
Turn left onto South Chestnut Place
0.2 mi·30 sec·South Chestnut Place
Use the left / uturn lanes.
22
Turn right onto West Ocean Boulevard
0.5 mi·1 min·West Ocean Boulevard
23
Continue on East Ocean Boulevard
0.1 mi·21 sec·East Ocean Boulevard
Use the left lane.
24
Arrive at destination
East Ocean Boulevard
Trip Plan
To make the most of this 7-hour drive, aim to leave Castro Valley early, ideally before 8 AM, to bypass morning commute congestion. You'll have two recommended stops along the way, which can be strategically placed to break up the 224.4-mile longest stretch. Keep an eye on your fuel gauge, especially before heading into less developed areas, as the $86 fuel cost estimate is based on an average. Since this route is manageable in a single day, you have the flexibility to adjust your stop timing based on your comfort level.
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.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 190.2 miles from Castro Valley, CA, or about 3h 27m into the drive.
The longest continuous stretch on this route runs about 224.4 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 84 miles or 1h 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 190.2 miles or 3h 27m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 50m
Traffic, exits, and arrival timing usually matter more near Long Beach, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Castro Valley, 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.
Day 1
Settle into the route from Castro Valley, CA
This is one driving day of about 380.5 miles and 7h 2m.
Your first comfortable stop window is around 84 miles from Castro Valley, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
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.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 20
5 decision points cluster between mile 0.3 and 378 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
0.3 mi into trip|~0m in|Strobridge Avenue
Turn left onto Strobridge Avenue
Lane positioning matters here
Use the straight lane.
6
11.9 mi into trip|~14m in|I 580 / Arthur H. Breed Junior Freeway
Keep slight right at fork onto I 580 / Arthur H. Breed Junior Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
271.2 mi into trip|~4h 53m in|I 5 Truck
Keep slight right at fork onto I 5 Truck
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
333.6 mi into trip|~6h 5m 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
7
378 mi into trip|~6h 57m in
Take the exit toward Downtown Long Beach, Convention Center, Aquarium
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / straight lanes.
Toward Downtown Long Beach, Convention Center,...
Fuel & Cost
Regular Gas
$79.61 one way
$159.21 round trip
$5.31/gal25.4 MPG avg133 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$82.68
$165.35
premium
$5.67
$84.86
$169.73
diesel
$4.80
$71.85
$143.69
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$80
Meals
$25–$50
Total
$105–$130
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 133.1 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $40 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
114.2
1
$39.95
$18.26
Efficient EV
95.1
1
$33.29
$15.22
EV Truck/SUV
152.2
1
$53.27
$24.35
Gas CO2
133 kg
EV CO2
45 kg (66% 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 Jul 17, 2026
Origin
Castro Valley, CA
Morning
in Castro Valley on Sunday
Local time
8:25 AM
PDT
Current temp
56°F
Mostly Cloudy
SW 8 mph1% chanceLive forecast
Heat Advisory
Heat Advisory issued July 16 at 10:47PM PDT until July 16 at 11:00PM PDT by NWS Hanford CA
Red Flag Warning
Red Flag Warning issued July 16 at 11:39AM PDT until July 17 at 8:00PM PDT by NWS Medford OR
Destination
Long Beach, CA
Morning
in Long Beach on Sunday
Local time
8:25 AM
PDT
Current temp
69°F
Patchy Fog
SE 10 mph2% chanceLive forecast
Heat Advisory
Heat Advisory issued July 16 at 10:47PM PDT until July 16 at 11:00PM PDT by NWS Hanford CA
Red Flag Warning
Red Flag Warning issued July 16 at 11:39AM PDT until July 17 at 8:00PM PDT by NWS Medford OR
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.
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
13 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 2m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Santa Monica Mountains National Recreation Area
National Recreation Area
The Santa Monica Mountains offer easy access to surprisingly wild places. Experience the famous beaches of Malibu or explore more than 500 miles of trails. The park abounds with historical and cultura...
18 mi from route
~45 min detour
Free
near mile 341.1
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...
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...
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
Yes, we can! Widely recognized as the most important Latino leader in the United States during the twentieth century, Cesar Chavez led farm workers and supporters in the establishment of the country's...
28 mi from route
~70 min detour
Free
near mile 275.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is almost entirely a highway drive, with 99% of the 380.5 miles on major freeways. You'll spend the vast majority of your time on the Westside Freeway, Arthur H. Breed Junior Freeway, and I 5 Truck. The longest continuous stretch on these highways is 224.4 miles on the Westside Freeway. Expect a consistent flow of traffic and frequent exits as you move through populated areas.
99% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 224.4 mi on Westside Freeway.
How Hard Is This Drive?
8/10
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 0.3 miles in near Strobridge Avenue.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 20 significant decision points across 380.5 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 0.3 miles (Strobridge Avenue): Lane positioning matters here; at 11.9 miles (I 580 / Arthur H. Breed Junior Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 271.2 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here.
Castro Valley is an unincorporated town in the inner East Bay in the Bay Area of California. It has a population of about 60,000 and is located north of Hayward and east of San Leandro and south of the Oakland hills. Since it is unincorporated, Castro Valley is governed by the County of Alameda, which has its county seat in Oakland.
Long Beach is a large port city in Los Angeles County in Southern California. Long Beach has some nice people-gathering amenities and genuine tourist attractions, such as a world-class aquarium and the Queen Mary floating museum/hotel. Special events are also held in the city like the annual Long Beach Grand Prix (a premier racing event held on city streets) and the annual Long Beach Lesbian & Gay Pride event. When compared to other areas like Hollywood, West Hollywood, Santa Monica and West L.A., Long Beach may not always be at the top of someone's tourist visit to the Los Angeles area, but the city draws its fair share of visitors and has proven it can definitely hold its own.
Top landmarks
•RMS Queen Mary — retired British ocean liner
•Terminal Island — island in Los Angeles County, California, United States
•Aquarium of the Pacific — public aquarium in Long Beach, California
Doable as a same-day drive at 7h 2m. Total distance: 380.5 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 2m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 224.4 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — we found about 33 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Long Beach, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 33 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.3 miles (Strobridge Avenue): Lane positioning matters here; at 11.9 miles (I 580 / Arthur H. Breed Junior Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 271.2 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Santa Monica Mountains National Recreation Area, San Francisco Maritime National Historical Park and Rosie the Riveter WWII Home Front National Historical Park (5 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 7.0 hours each way, a round trip means 14.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Long Beach, CA before the return drive.
