This 100.3-mile drive from Cobb, CA to San Francisco, CA takes approximately 2 hours and 11 minutes, making it a feasible day trip. You'll primarily navigate Saint Helena Highway South and the Eastshore Freeway, with about 30% of the journey on highways. The estimated fuel cost for this trip is around $23. This route offers a mixed driving experience as you transition from the Pacific Coast region to the bustling urban environment of San Francisco. It's a straightforward journey that doesn't require an overnight stop, allowing for flexibility in your schedule.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
50.1 miles from Cobb, CA
A natural place for your longest stop of the day
, about 1h 7m into the drive
.
Main Roads
Road
Distance
Duration
Saint Helena Highway South
21.7 mi
25m
Calistoga Street
16.5 mi
24m
Eastshore Freeway
15.2 mi
17m
Dwight D. Eisenhower Highway
11.2 mi
15m
CA 175
8.3 mi
12m
Saint Helena Highway
6.8 mi
7m
Broadway Street
4 mi
4m
Linus F. Claeys Freeway
3.4 mi
3m
Longest stretch:
Saint Helena Highway South
— 21.7 mi, about 25m
Turn-by-Turn Driving Directions
Step-by-step road directions between Cobb, CA and San Francisco, CA.
1
Start on High Road
0.2 mi·39 sec·High Road
2
Turn right onto CA 175
8.3 mi·12 min·CA 175
3
Turn right onto CA 29
16 mi·24 min·Calistoga Street
4
Continue on CA 29
1.0 mi·1 min·Lincoln Avenue
5
Turn left onto CA 29; CA 128
6.8 mi·7 min·Saint Helena Highway
6
Continue on CA 29; CA 128
2.4 mi·2 min·Main Street
7
Continue on CA 29; CA 128
22 mi·25 min·Saint Helena Highway South
Use the straight / slight right lanes.
8
Continue on CA 12; CA 29
1.3 mi·1 min·Napa–Vallejo Highway
9
Continue on CA 29
4.0 mi·4 min·Broadway Street
10
Continue on CA 29
1.8 mi·2 min·Sonoma Boulevard
Use the straight lane.
11
Take the exit
0.3 mi·38 sec
Toward CA 37, I 80: Sacramento, San Francisco
12
Merge onto CA 37
1.7 mi·1 min·CA 37
Use the straight / slight right lanes.
13
Take the exit
0.6 mi·1 min
Exit 21AToward I 80: San FranciscoUse the slight right lane.
14
Merge onto I 80
5.0 mi·5 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
15
Continue on I 80
1.0 mi·1 min·Carquinez Bridge
Use the straight / slight right lanes.
16
Continue on I 80
0.3 mi·24 sec·Eastshore Freeway
17
Continue on I 80
3.4 mi·3 min·Linus F. Claeys Freeway
Use the straight / slight right lanes.
18
Continue on I 80
14 mi·16 min·Eastshore Freeway
Use the straight / slight right lanes.
19
Take the exit onto Eastshore Freeway
0.8 mi·1 min·Eastshore Freeway
Toward San FranciscoUse the slight left lane.
20
Merge onto I 80
0.4 mi·33 sec·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
21
Turn slight left onto I 80
0.4 mi·33 sec·Dwight D. Eisenhower Highway
22
Keep slight left at fork onto I 80
5.5 mi·8 min·Dwight D. Eisenhower Highway
Use the slight left lane.
23
Continue on I 80
0.3 mi·24 sec·Route 80
Use the straight / left / right lanes.
24
Continue on I 80
0.8 mi·1 min·Route 80
Exit 2AUse the straight / slight left lanes.
25
Continue on I 80
0.4 mi·32 sec·Route 80
Exit 1AUse the straight / slight right lanes.
26
Keep slight right at fork
0.4 mi·38 sec
Exit 1BToward US 101 North: Golden Gate BridgeUse the straight / slight right lanes.
27
Merge onto US 101
0.3 mi·25 sec·Central Freeway
28
Continue on Octavia Boulevard
0.5 mi·42 sec·Octavia Boulevard
Exit 434BToward Octavia Boulevard, Fell StreetUse the straight / slight right lanes.
29
Turn right onto Market Street
0.1 mi·31 sec·Market Street
Use the right lane.
30
Keep slight right at fork onto Market Street
0.2 mi·35 sec·Market Street
31
Arrive at destination
Market Street
Trip Plan
Given the relatively short duration of just over two hours, you have the advantage of flexibility with this trip. Aim to depart Cobb in the morning to avoid potential afternoon traffic as you approach San Francisco. While only 100.3 miles, consider a brief stop midway for a stretch, especially since the longest continuous stretch is 21.7 miles. The $23 fuel estimate is manageable, but it’s always wise to start with a full tank. Keep an eye on traffic conditions as you get closer to the city, as this can significantly impact your arrival time.
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 50.1 miles from Cobb, CA, or about 1h 7m into the drive.
The longest continuous stretch on this route runs about 21.7 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 22 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 50.1 miles or 1h 7m 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 46m
Traffic, exits, and arrival timing usually matter more near San Francisco, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Cobb, 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.
Day 1
Settle into the route from Cobb, CA
This is one driving day of about 100.3 miles and 2h 11m.
Your first comfortable stop window is around 22 miles from Cobb, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Saint Helena Highway South for about 21.7 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 17
5 decision points cluster between mile 64 and 98.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
64 mi into trip|~1h 24m in
Take the exit toward CA 37, I 80: Sacramento, San Francisco
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward CA 37, I 80: Sacramento, San Francisco
7
66 mi into trip|~1h 26m in
Take the exit toward I 80: San Francisco
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 21A
Toward I 80: San Francisco
6
90.5 mi into trip|~1h 55m in|Eastshore Freeway
Take the exit onto Eastshore Freeway toward San Francisco
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Toward San Francisco
6
92 mi into trip|~1h 58m in|I 80 / Dwight D. Eisenhower Highway
Keep slight left at fork onto I 80 / Dwight D. Eisenhower Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
8
98.9 mi into trip|~2h 8m in
Keep slight right at fork toward US 101 North: Golden Gate Bridge
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 1B
Toward US 101 North: Golden Gate Bridge
Fuel & Cost
Regular Gas
$23.05 one way
$46.11 round trip
$5.84/gal25.4 MPG avg35 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$23.76
$47.51
premium
$6.18
$24.39
$48.78
diesel
$5.61
$22.14
$44.29
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$23
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 35.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $11 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
30.1
0
$10.53
$4.81
Efficient EV
25.1
0
$8.78
$4.01
EV Truck/SUV
40.1
0
$14.04
$6.42
Gas CO2
35 kg
EV CO2
12 kg (66% 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 16, 2026
Origin
Cobb, CA
Late night
in Cobb on Tuesday
Local time
5:12 AM
PDT
Current temp
45°F
Unavailable
Live forecast
Destination
San Francisco, CA
Late night
in San Francisco on Tuesday
Local time
5:12 AM
PDT
Current temp
70°F
Sunny
N 5 to 10 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 16 at 10:43AM PDT until April 17 at 11:00AM PDT by NWS Medford OR
Wind Advisory
Wind Advisory issued April 16 at 10:32AM PDT until April 17 at 11:00AM PDT by NWS Hanford CA
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
25 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
2h 11m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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.
San Francisco Maritime National Historical Park
National Historical Park
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...
2 mi from route
~6 min detour
Free
near mile 100.3
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...
11 mi from route
~27 min detour
Free
near mile 72.6
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...
12 mi from route
~29 min detour
Free
near mile 100.3
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,...
12 mi from route
~30 min detour
$15
near mile 100.3
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
The personality of this drive is a blend of country roads and highway cruising. You'll spend a significant portion on Saint Helena Highway South, experiencing a longest uninterrupted stretch of 21.7 miles on this road before transitioning to more freeway-style driving on the Eastshore Freeway. With a 30% highway share, expect some faster-paced sections interspersed with more winding or local road segments. This mixed profile means you'll need to adjust your driving style as the route progresses.
30% highway, the rest on surface roads — varied driving throughout.
31 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 21.7 mi on Saint Helena Highway South.
How Hard Is This Drive?
10/10
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 64 miles in.
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 17 significant decision points across 100.3 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 64 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 66 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 90.5 miles (Eastshore Freeway): Exit ramp - move to the correct lane early. Lane positioning matters here.
The centerpiece of the Bay Area, San Francisco is one of the most visited cities in the world, and with good reason. The cultural center of northern California, San Francisco is renowned for its mixture of scenic beauty and unique culture that makes it one of the most vibrant and desirable cities in the nation, if not the world.
Sandwiched between the San Francisco Bay and the Pacific Ocean on a small square of land seven miles (11 km) on each side, San Francisco offers a wealth of treasures for the visitor, from the windswept and often foggy bay to the steep hills lined with Victorian homes that overlook the spectacular scenery of the city.
Top landmarks
•Golden Gate Bridge — suspension bridge on the San Francisco Bay
•Alcatraz Island — island in San Francisco, California, United States of America
•San Francisco–Oakland Bay Bridge — suspension bridge connecting San Francisco and Oakland, California, USA
Doable as a same-day drive at 2h 11m. Total distance: 100.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 11m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (30%). 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 21.7 miles on Saint Helena Highway South. 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 San Francisco, 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 64 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 66 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 90.5 miles (Eastshore Freeway): Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — San Francisco Maritime National Historical Park, Rosie the Riveter WWII Home Front National Historical Park and Port Chicago Naval Magazine National Memorial (5 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 San Francisco, CA before heading back.
