This 85-mile drive from Santa Rosa, CA to Fremont, CA is a straightforward 1 hour and 44-minute journey, making it an ideal day trip. You'll navigate primarily on the Redwood Highway, Nimitz Freeway, and John T. Knox Freeway, with about 54% of the route being highway driving. The estimated fuel cost for this trip is around $20. Given the relatively short duration and manageable distance, it's perfectly suited for a single-day excursion without the need for an overnight stay. The route offers a mixed driving experience as you transition between regions within the Pacific Coast. This trip is a practical option for getting from point A to point B efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
42.5 miles from Santa Rosa, CA
A natural place for your longest stop of the day
, about 51m into the drive
.
Main Roads
Road
Distance
Duration
Redwood Highway
36.9 mi
43m
Nimitz Freeway
14.3 mi
18m
John T. Knox Freeway
13.6 mi
17m
I 880
13.6 mi
14m
Eastshore Freeway
3.8 mi
4m
Mowry Avenue
1.6 mi
3m
Interstate Highway 80
0.3 mi
<1m
3rd Street
0.2 mi
<1m
Longest stretch:
Redwood Highway
— 36.9 mi, about 43m
Turn-by-Turn Driving Directions
Step-by-step road directions between Santa Rosa, CA and Fremont, CA.
1
Start on 4th Street
446 ft·19 sec·4th Street
2
Turn left onto B Street
329 ft·18 sec·B Street
3
Turn right onto 3rd Street
0.2 mi·41 sec·3rd Street
4
Take the ramp
0.2 mi·27 sec
Toward CA 12, US 101 South
5
Keep slight left at fork
0.1 mi·18 sec
Toward US 101 South: San Francisco
6
Merge onto US 101
37 mi·43 min·Redwood Highway
Use the straight / slight right lanes.
7
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.
8
Merge onto I 80; I 580
3.8 mi·4 min·Eastshore Freeway
Use the straight / slight right lanes.
9
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.
10
Keep slight right at fork onto I 880
14 mi·18 min·Nimitz Freeway
Toward I 880: West Grand Avenue, Alameda, San JoseUse the slight left / slight right lanes.
11
Keep slight left at fork onto I 880
5.6 mi·6 min·I 880
Use the slight left lane.
12
Keep slight left at fork onto I 880
2.4 mi·2 min·I 880
Use the slight left lane.
13
Keep slight left at fork onto I 880
5.6 mi·6 min·I 880
Use the slight left lane.
14
Take the exit
0.3 mi·35 sec
Exit 17Toward Mowry Avenue, Central FremontUse the straight / slight right lanes.
15
Turn left
116 ft·3 sec
Use the left lane.
16
Turn straight onto Mowry Avenue
0.1 mi·10 sec·Mowry Avenue
17
Continue on Mowry Avenue
1.5 mi·2 min·Mowry Avenue
18
Arrive at destination
Mowry Avenue
Trip Plan
For this 85-mile trip, departing earlier in the day can help you avoid heavier traffic, especially as you approach the Bay Area. Since the drive is only about 1 hour and 44 minutes, you have flexibility with stops; consider a brief break if needed, but it's not a requirement. Keep an eye on your fuel gauge, with an estimated cost of $20 for the journey. A practical tip for this route is to be aware of the transition points between the Redwood Highway and the freeways, as this is where traffic patterns can change significantly. With no designated stops in the data, plan your own brief rest if desired.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 42.5 miles from Santa Rosa, CA, or about 51m into the drive.
The longest continuous stretch on this route runs about 36.9 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 19 miles or 23m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 42.5 miles or 51m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 28m
Traffic, exits, and arrival timing usually matter more near Fremont, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Santa Rosa, CA so your first major turns are already loaded.
Day 1
Settle into the route from Santa Rosa, CA
This is one driving day of about 85 miles and 1h 44m.
Your first comfortable stop window is around 19 miles from Santa Rosa, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Redwood Highway for about 36.9 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 14
5 decision points cluster between mile 0.4 and 83.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
0.4 mi into trip|~1m in
Take the ramp toward CA 12, US 101 South
Multiple destination signs - pick the right one
Toward CA 12, US 101 South
9
37.6 mi into trip|~45m 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
55 mi into trip|~1h 7m 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
55.2 mi into trip|~1h 7m in|I 880 / Nimitz Freeway
Keep slight right at fork onto I 880 / Nimitz Freeway toward I 880: West Grand Avenue, Alameda, San Jose
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 880: West Grand Avenue, Alameda, San J...
8
83.1 mi into trip|~1h 40m in
Take the exit toward Mowry Avenue, Central Fremont
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 17
Toward Mowry Avenue, Central Fremont
Fuel & Cost
Regular Gas
$19.54 one way
$39.07 round trip
$5.84/gal25.4 MPG avg30 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$20.13
$40.26
premium
$6.18
$20.67
$41.34
diesel
$5.61
$18.77
$37.53
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 29.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $9 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
25.5
0
$8.92
$4.08
Efficient EV
21.3
0
$7.44
$3.40
EV Truck/SUV
34
0
$11.90
$5.44
Gas CO2
30 kg
EV CO2
10 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 20, 2026
Origin
Santa Rosa, CA
Late night
in Santa Rosa on Tuesday
Local time
2:24 AM
PDT
Current temp
--
Unavailable
Destination
Fremont, CA
Late night
in Fremont on Tuesday
Local time
2:24 AM
PDT
Current temp
49°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.
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
1h 44m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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.
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...
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,...
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...
7 mi from route
~18 min detour
Free
near mile 55.7
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...
9 mi from route
~22 min detour
Free
near mile 38.1
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
~44 min detour
Free
near mile 20.5
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...
19 mi from route
~47 min detour
Free
near mile 49.8
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
The drive presents a mixed driving profile, blending highway speeds with other road types. With 54% of the journey on highways, expect periods of faster travel, particularly on the Nimitz Freeway and John T. Knox Freeway. The longest uninterrupted stretch you'll encounter is 36.9 miles on the Redwood Highway, offering a sustained segment of consistent road conditions. As you progress, the character of the road will likely shift, transitioning from the more open feel of the Redwood Highway to the busier urban arteries closer to Fremont. This variability means you'll experience different driving dynamics throughout the 85 miles.
54% highway, the rest on surface roads — varied driving throughout.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 36.9 mi on Redwood Highway.
How Hard Is This Drive?
9/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.4 miles in.
Driving Effort9/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 85 miles you will encounter 14 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.4 miles: Multiple destination signs - pick the right one; at 37.6 miles (I 580 / John T. Knox Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 55 miles (I 580 / Interstate Highway 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Santa Rosa, CA and Fremont, CA, road signs point toward Oakland, Hayward, Stockton, Alameda and San Jose.
Santa Rosa is the largest city in Sonoma County, California, and fifth largest in the San Francisco Bay Area. The city is a jumping off point for visiting the wine country of Sonoma County and the Napa Valley, or driving out to the beautiful coastal and parks throughout the Sonoma County.
Fremont is a suburban city in the southern part of the East Bay of the San Francisco Bay Area; it is the 4th largest city in the Bay Area by population. Fremont is in the southern part of Alameda County, California, between Union City to the north, Sunol and the hills to the east, Milpitas and Santa Clara County to the south, and the San Francisco Bay to the west. The city of Newark, near the edge of the Bay, is surrounded by the city of Fremont.
Fremont industry is not particularly large relative to other parts of the Bay Area, but neither is it a bedroom community. Many people in Fremont work locally in the electronics and high-tech industry, while many others commute to Silicon Valley or San Francisco locations for work.
Top landmarks
•Mission San José — 18th-century Spanish mission in Fremont, California
•Ardenwood Historic Farm — human settlement in California, United States of America
•Niles Depot Museum — railway museum in Niles, California
Doable as a same-day drive at 1h 44m. Total distance: 85 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 44m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (54%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 36.9 miles on Redwood Highway. The full list of main roads is in the Roads section above.
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 Fremont, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 0.4 miles: Multiple destination signs - pick the right one; at 37.6 miles (I 580 / John T. Knox Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 55 miles (I 580 / Interstate Highway 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Rosie the Riveter WWII Home Front National Historical Park, Muir Woods National Monument and San Francisco Maritime National Historical Park (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Fremont, CA before heading back.
