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Trip from Brentwood, CA to Fremont, CA

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

1h 5m

Distance

43.3 mi

70 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$10

one way

EV Charging

Unknown

Best Time to Leave

Save up to 15 min
4 AM
1h 0m ★
6 AM
1h 5m
8 AM
1h 15m
10 AM
1h 9m
12 PM
1h 8m
3 PM
1h 9m
5 PM
1h 15m
8 PM
1h 2m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city in Contra Costa County, California, United States

Brentwood, CA

Wikimedia Commons

Trip Overview

This 43.3-mile drive from Brentwood, CA to Fremont, CA is a straightforward local journey that can easily be completed in about 1 hour and 5 minutes. With no highway driving involved, you'll be navigating primarily on Oak Street, Walnut Boulevard, and Vasco Road. This route is perfectly suited for a single day trip, requiring no overnight stays. The estimated fuel cost for this short excursion is around $10, making it an economical choice for a quick transit. The entire trip stays within the Pacific Coast region, offering a consistent local feel throughout.

Main Roads

Road Distance Duration
Vasco Road 16.4 mi 23m
I 680 5.5 mi 6m
Vallecitos Road 5.2 mi 7m
Isabel Avenue 4.7 mi 6m
Arthur H. Breed Junior Freeway 3.7 mi 4m
Walnut Boulevard 3 mi 5m
Fremont Boulevard 1.9 mi 4m
Washington Boulevard 0.9 mi 2m
Longest stretch: Vasco Road — 16.4 mi, about 23m

Turn-by-Turn Driving Directions

Step-by-step road directions between Brentwood, CA and Fremont, CA.

1

Start on Brentwood Boulevard

66 ft · 8 sec · Brentwood Boulevard
2

Turn left onto Oak Street

376 ft · 20 sec · Oak Street
Use the left lane.
3

Turn left onto Walnut Boulevard

3.0 mi · 5 min · Walnut Boulevard
Use the straight lane.
4

Turn left onto Vasco Road

16 mi · 23 min · Vasco Road
Use the left lane.
5

Take the exit

0.4 mi · 51 sec
Toward I 580 West: Oakland Use the right lane.
6

Merge onto I 580

3.7 mi · 4 min · Arthur H. Breed Junior Freeway
7

Take the exit

0.3 mi · 41 sec
Exit 51 Toward CA 84: Isabel Avenue, Portola Avenue Use the straight / slight right lanes.
8

Turn left onto CA 84

4.7 mi · 6 min · Isabel Avenue
Use the straight / right lanes.
9

Continue on CA 84

5.2 mi · 7 min · Vallecitos Road
Use the left / straight lanes.
10

Keep slight left at fork

0.4 mi · 55 sec
Toward I 680 South: Fremont, San Jose
11

Merge onto I 680

5.5 mi · 6 min · I 680
Use the straight / slight right lanes.
12

Take the exit

0.3 mi · 45 sec
Exit 15 Toward Washington Boulevard Use the straight / slight right lanes.
13

Turn right onto Washington Boulevard

0.9 mi · 2 min · Washington Boulevard
Use the right lane.
14

Continue on Fremont Boulevard

1.9 mi · 4 min · Fremont Boulevard
15

Turn left onto Mowry Avenue

0.1 mi · 29 sec · Mowry Avenue
Use the left lane.
16

Continue on Mowry Avenue

0.1 mi · 22 sec · Mowry Avenue
Use the left lane.
17

Arrive at destination

Mowry Avenue

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

city in Alameda County, California, United States

Mid-route town

Meal stop

Livermore, CA

22 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Byron, CA

Fuel and coffee

A short stop after about 10 miles helps settle the day before fatigue starts building.

Livermore, CA

Meal break

The midpoint is around 21.6 miles from Brentwood, CA, which is a good place for a longer meal and fuel stop.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Heads-up: tricky spots

5 of 13

5 decision points cluster between mile 0 and 39.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

7
0 mi into trip | ~0m in | Oak Street

Turn left onto Oak Street

Lane positioning matters here

Use the left lane.
6
0.1 mi into trip | ~0m in | Walnut Boulevard

Turn left onto Walnut Boulevard

Lane positioning matters here

Use the straight lane.
6
3.1 mi into trip | ~6m in | Vasco Road

Turn left onto Vasco Road

Lane positioning matters here

Use the left lane.
8
23.7 mi into trip | ~34m in

Take the exit toward CA 84: Isabel Avenue, Portola Avenue

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 51 Toward CA 84: Isabel Avenue, Portola Avenue
7
39.9 mi into trip | ~56m in

Take the exit toward Washington Boulevard

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Exit 15 Toward Washington Boulevard

Fuel & Cost

Regular Gas

$9.95 one way

$19.90 round trip

$5.84/gal 25.4 MPG avg 15 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $6.02 $10.26 $20.51
premium $6.18 $10.53 $21.06
diesel $5.61 $9.56 $19.12

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$10

Estimated CO2 emission: 15.1 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $5 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 13 0 $4.55 $2.08
Efficient EV 10.8 0 $3.79 $1.73
EV Truck/SUV 17.3 0 $6.06 $2.77

Gas CO2

15 kg

EV CO2

5 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

Brentwood, CA

Late night in Brentwood on Tuesday

Local time

2:20 AM

PDT

Current temp

--

Unavailable

Destination

Fremont, CA

Late night in Fremont on Tuesday

Local time

2:20 AM

PDT

Current temp

49°F

Unavailable

Live forecast

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 5m 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.

What kind of drive is this?

Expect a turn-heavy local drive on this route, with a 0% highway share. The longest uninterrupted stretch is not specified, but the nature of the roads suggests frequent intersections and changes in direction. You'll be on Oak Street, Walnut Boulevard, and Vasco Road for the majority of the journey. This isn't a route for cruising at high speeds; instead, it's about navigating local traffic and road networks efficiently. The experience behind the wheel will feel more like a series of interconnected city and suburban streets than an open highway.

Only 21% highway — the rest is turn-by-turn surface driving.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 16.4 mi on Vasco Road.

How Hard Is This Drive?

9/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Oak Street.

Driving Effort 9/10

Demanding - stay alert through the decision-heavy sections

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 43.3 miles you will encounter 13 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: near the start (Oak Street): Lane positioning matters here; at 0.1 miles (Walnut Boulevard): Lane positioning matters here; at 3.1 miles (Vasco Road): Lane positioning matters here.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

On the drive from Brentwood, CA to Fremont, CA, road signs begin pointing toward San Jose along the way.

San Jose

33.9 mi in | ~49m

About the Cities

Starting in Brentwood, CA

Full guide →

Founded 1837

Brentwood is an affluent, suburban city in eastern Contra Costa County, California with a popular downtown for visitors coming from the Sacramento Valley to the county. It serves as one of the eastern gateways to the East Bay, along with Livermore. Many in the city are commuters.

Top landmarks

  • Stone House of John Marsh — historic stone house in Contra Costa County, California

Arriving in Fremont, CA

Full guide →

Founded 1956

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

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 5m. Total distance: 43.3 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 5m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

Scenic Drive

Mostly surface roads route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 16.4 miles on Vasco Road. 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: near the start (Oak Street): Lane positioning matters here; at 0.1 miles (Walnut Boulevard): Lane positioning matters here; at 3.1 miles (Vasco Road): Lane positioning matters here.

Yes — Port Chicago Naval Magazine National Memorial and San Francisco Maritime National Historical Park. 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.

How this page is built

Compiled by the US Trip Planner 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.

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