This 157.8-mile drive from Fremont, CA to Barstow, CA is designed as a single-day trip, taking approximately 3 hours and 15 minutes. You'll primarily be on CA 99, the Robert T. Monagan Freeway, and the Arthur H. Breed Junior Freeway, with 91% of the route being highway driving. With an estimated fuel cost of $36, this straightforward journey offers a practical way to cover ground. It’s a direct route focused on efficient travel between the Pacific Coast regions of California. Plan for one main stop along the way to break up the drive.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
78.9 miles from Fremont, CA
A natural place for your longest stop of the day
, about 1h 38m into the drive
.
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
Barstow is a city of 24,000 people (2018) in the southern desert of the state of California. The city's location at the junction of Interstate 15 and Interstate 40 in the middle of a barren desert, as well as its position on the old Route 66, make it a frequent pit stop for travelers passing through on their way to more exotic destinations.
Doable as a same-day drive at 3h 15m. Total distance: 157.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 15m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Drive Character
Expect a highway-focused experience for the majority of this 157.8-mile journey. You'll spend 91% of your time on major freeways, making for a fast-paced drive. The longest uninterrupted stretch you'll encounter is 97.5 miles on CA 99, so settle in for a significant period of consistent highway travel. While the route is predominantly freeway, it offers a direct and efficient path, minimizing time spent on local roads. This character makes it ideal for covering distance quickly.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 24 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
CA 99 is the longest continuous segment at about 97.5 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on CA 99 and Robert T. Monagan Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Fremont Boulevard.
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 157.8 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: near the start (Fremont Boulevard): Lane positioning matters here; at 3.1 miles: Lane positioning matters here; at 9 miles (CA 84): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 17 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
0 mi into trip|~0m in|Fremont Boulevard
Turn right onto Fremont Boulevard
Lane positioning matters here
Use the straight / right lanes.
6
3.1 mi into trip|~7m in
Turn left toward I 680 North: Sacramento
Lane positioning matters here
Use the left lane.
Toward I 680 North: Sacramento
8
9 mi into trip|~14m in|CA 84
Take the exit onto CA 84 toward CA 84 East: Livermore, Vallecitos Road
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 21B
Toward CA 84 East: Livermore, Vallecitos Road
8
54 mi into trip|~1h 9m in
Take the exit toward CA 99 South: Modesto, Fresno
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 6
Toward CA 99 South: Modesto, Fresno
7
152.2 mi into trip|~3h 2m in
Take the exit toward Herndon Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 143
Toward Herndon Avenue
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Fremont, CA and Barstow, CA, road signs point toward Stockton, Sonora and Fresno.
Stockton
32.2 mi in|~44m|via I 205
Sonora
47.8 mi in|~1h 2m
Fresno
54 mi in|~1h 9m
Main Roads
Road
Distance
Duration
CA 99
97.5 mi
1h 51m
Robert T. Monagan Freeway
14.6 mi
16m
Arthur H. Breed Junior Freeway
12.9 mi
14m
CA 120
6.2 mi
7m
I 680
5.6 mi
6m
CA 84
5.5 mi
7m
Isabel Avenue
4.3 mi
6m
West Herndon Avenue
2.9 mi
6m
Longest stretch:
CA 99
— 97.5 mi, about 1h 51m
Turn-by-Turn Driving Directions
Step-by-step road directions between Fremont, CA and Barstow, CA.
1
Start on Mowry Avenue
109 ft·6 sec·Mowry Avenue
2
Turn right onto Fremont Boulevard
1.9 mi·4 min·Fremont Boulevard
Use the straight / right lanes.
3
Continue on Washington Boulevard
1.2 mi·2 min·Washington Boulevard
Use the left lane.
4
Turn left
0.2 mi·31 sec
Toward I 680 North: SacramentoUse the left lane.
5
Merge onto I 680
5.6 mi·6 min·I 680
Use the straight / slight right lanes.
6
Take the exit onto CA 84
5.5 mi·7 min·CA 84
Exit 21BToward CA 84 East: Livermore, Vallecitos RoadUse the straight / slight right lanes.
7
Merge onto CA 84
4.3 mi·6 min·Isabel Avenue
Use the straight lane.
8
Take the exit
0.5 mi·1 min
Toward I 580 East: StocktonUse the right lane.
9
Merge onto I 580
13 mi·14 min·Arthur H. Breed Junior Freeway
10
Keep slight left at fork onto I 205
3.9 mi·4 min·Robert T. Monagan Freeway
Toward I 205 East: Tracy, Stockton
11
Keep slight left at fork onto I 205
11 mi·11 min·Robert T. Monagan Freeway
12
Merge onto I 5
1.0 mi·1 min·Westside Freeway
13
Take the exit
469 ft·6 sec
Toward CA 120 East: Manteca, Sonora
14
Continue on CA 120
6.2 mi·7 min·CA 120
Use the straight / slight right lanes.
15
Take the exit
0.7 mi·1 min
Exit 6Toward CA 99 South: Modesto, FresnoUse the slight right lane.
16
Merge onto CA 99
97 mi·1 hr 51 min·CA 99
Use the straight / slight right lanes.
17
Take the exit
0.5 mi·34 sec
Exit 143Toward Herndon AvenueUse the straight / slight right lanes.
18
Continue on North Golden State Boulevard
0.4 mi·36 sec·North Golden State Boulevard
19
Turn right onto West Herndon Avenue
0.2 mi·27 sec·West Herndon Avenue
20
At end of road, turn right onto North Parkway Drive
0.5 mi·1 min·North Parkway Drive
21
Continue on West Herndon Avenue
2.7 mi·6 min·West Herndon Avenue
22
Continue on North Dickenson Avenue
1.2 mi·3 min·North Dickenson Avenue
23
Turn left onto West Barstow Avenue
152 ft·6 sec·West Barstow Avenue
24
Arrive at destination
West Barstow Avenue
Trip Plan
Given the 3-hour and 15-minute duration, this route is easily manageable as a single-day trip. Leaving Fremont earlier in the morning, perhaps before 9 AM, will help you avoid potential traffic near the Bay Area. The longest stretch without a significant change in road is 97.5 miles on CA 99, so consider your fuel level before entering this section. With a total estimated fuel cost of $36, it’s an economical drive. Take advantage of the single recommended stop to stretch your legs and refuel if needed.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 78.9 miles from Fremont, CA, or about 1h 38m into the drive.
The longest continuous stretch on this route runs about 97.5 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 35 miles or 48m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 78.9 miles or 1h 38m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 36m
Traffic, exits, and arrival timing usually matter more near Barstow, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Fremont, 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 Fremont, CA
This is one driving day of about 157.8 miles and 3h 15m.
Your first comfortable stop window is around 35 miles from Fremont, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on CA 99 for about 97.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 78.9 mi from Fremont, CA
· 1h 38m into the drive
The midpoint is around 78.9 miles from Fremont, CA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before CA 99 if your tank is already low. That segment runs about 97.5 miles.
Arriving in Barstow, CA
The final approach into Barstow, 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 Barstow, CA.
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.
Port Chicago Naval Magazine National Memorial
National Memorial
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...
29 mi from route
~72 min detour
Free
near mile 21.8
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...
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$21.43 one way
$42.87 round trip
$3.45/gal25.4 MPG avg55 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.85
$23.92
$47.84
premium
$4.15
$25.78
$51.56
diesel
$3.75
$23.30
$46.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$21
Meals
$25–$50
Total
$46–$71
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 55.2 kg one way.
Driving Electric?
About $17 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
47.3
0
$16.57
$7.57
Efficient EV
39.5
0
$13.81
$6.31
EV Truck/SUV
63.1
0
$22.09
$10.10
Gas CO2
55 kg
EV CO2
18 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 15, 2026
Origin
Fremont, CA
Late night
in Fremont on Saturday
Local time
3:27 AM
PDT
Current temp
67°F
Unavailable
Live forecast
Destination
Barstow, CA
Late night
in Barstow on Saturday
Local time
3:27 AM
PDT
Current temp
73°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.
Temperature spread
6 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
3h 15m 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.
Frequently Asked Questions
The drive from Fremont, CA to Barstow, CA covers 157.8 miles and takes about 3h 15m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are CA 99, Robert T. Monagan Freeway, Arthur H. Breed Junior Freeway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 78.9 miles from Fremont, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $21.43 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a demanding drive. With 17 significant decision points across 157.8 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: near the start (Fremont Boulevard): Lane positioning matters here; at 3.1 miles: Lane positioning matters here; at 9 miles (CA 84): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Fremont, CA and Barstow, CA, road signs point toward Stockton, Sonora and Fresno.
Yes. Nearby national parks include Port Chicago Naval Magazine National Memorial and San Francisco Maritime National Historical Park.
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, and NPS for national parks. See our methodology for refresh cadence and limitations.
