Fremont, CA to Greenfield, CA is 260.3 miles and takes about 4h 59m via Westside Freeway and Pacheco Pass Highway, with a fuel budget near $62 and enough daylight to finish in a day. This Pacific Coast drive takes you from the San Francisco Bay Area down through the Central Coast region of California. With most of the trip on highways, it's a straightforward drive for a single day, allowing you to reach your destination without needing an overnight stop. Consider this route if you're looking for an efficient way to travel between these two points.
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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
130.1 miles from Fremont, CA
A natural place for your longest stop of the day
, about 2h 33m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
158 mi
2h 49m
Pacheco Pass Highway
40.6 mi
50m
Bayshore Freeway
32.3 mi
37m
Nimitz Freeway
13.3 mi
15m
Taft Highway
12.7 mi
19m
Mowry Avenue
1.6 mi
3m
CA 152
0.3 mi
<1m
South Union Avenue
0.1 mi
<1m
Longest stretch:
Westside Freeway
— 158 mi, about 2h 49m
Traffic on I-5
Hour-of-day weekday pattern from 52 FHWA count stations on your route.
Peak
2 PM
~1,383 veh/hr typical
· worst 2,075
Quietest
2 AM
~303 veh/hr
Peak-to-quiet ratio
4.6×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 42 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 Fremont, CA and Greenfield, CA.
1
Start on Mowry Avenue
109 ft·4 sec·Mowry Avenue
2
Continue on Mowry Avenue
1.4 mi·3 min·Mowry Avenue
Use the left lane.
3
Continue on Mowry Avenue
0.2 mi·23 sec·Mowry Avenue
4
Take the ramp
0.3 mi·40 sec
Toward I 880 South: San JoseUse the right lane.
5
Merge onto I 880
13 mi·15 min·Nimitz Freeway
Use the straight / slight right lanes.
6
Take the exit
0.1 mi·34 sec
Toward US 101 South: Los AngelesUse the straight / right lanes.
7
Merge onto US 101
32 mi·37 min·Bayshore Freeway
Use the straight / right lanes.
8
Take the exit onto CA 152
0.3 mi·39 sec·CA 152
Toward CA 152 East: 10th Street, Pacheco Pass Road
9
Turn left onto CA 152
353 ft·12 sec·East 10th Street
10
Continue on CA 152
41 mi·50 min·Pacheco Pass Highway
11
Take the exit
0.6 mi·1 min
Toward I 5: Los Angeles
12
Merge onto I 5
158 mi·2 hr 49 min·Westside Freeway
Use the straight / slight right lanes.
13
Take the exit
0.3 mi·40 sec
Exit 244Toward CA 119: Taft HighwayUse the straight / slight right lanes.
14
Turn left onto CA 119
13 mi·19 min·Taft Highway
Use the straight lane.
15
Turn left onto CA 99 BUS
0.1 mi·22 sec·South Union Avenue
16
Turn right
37 ft·2 sec
17
Arrive at destination
Trip Plan
This 260.3-mile drive can easily be completed in one day, so you have flexibility with your departure time. Leaving Fremont in the morning should allow you to arrive in Greenfield with plenty of daylight remaining. You'll encounter one recommended stop, so plan for a brief break during your 4h 59m drive. Keep an eye on your fuel levels, especially before heading into the longer highway stretches, as the estimated fuel cost is around $62. The transition from highway to surface roads closer to Greenfield is something to be aware of as you near your destination.
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 130.1 miles from Fremont, CA, or about 2h 33m into the drive.
The longest continuous stretch on this route runs about 158 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 57 miles or 1h 9m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 130.1 miles or 2h 33m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 2m
Traffic, exits, and arrival timing usually matter more near Greenfield, 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 260.3 miles and 4h 59m.
Your first comfortable stop window is around 57 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 Westside Freeway for about 158 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 11
5 decision points cluster between mile 1.6 and 247.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
1.6 mi into trip|~3m in
Take the ramp toward I 880 South: San Jose
Lane positioning matters here
Use the right lane.
Toward I 880 South: San Jose
5
1.9 mi into trip|~4m in|I 880 / Nimitz Freeway
Merge onto I 880 / Nimitz Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
15.2 mi into trip|~19m in
Take the exit toward US 101 South: Los Angeles
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / right lanes.
Toward US 101 South: Los Angeles
5
15.3 mi into trip|~20m in|US 101 / Bayshore Freeway
Merge onto US 101 / Bayshore Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / right lanes.
7
247.2 mi into trip|~4h 38m in
Take the exit toward CA 119: Taft Highway
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 244
Toward CA 119: Taft Highway
Fuel & Cost
Regular Gas
$54.46 one way
$108.92 round trip
$5.31/gal25.4 MPG avg91 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$56.56
$113.12
premium
$5.67
$58.06
$116.11
diesel
$4.80
$49.15
$98.30
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$54
Meals
$25–$50
Total
$79–$104
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 91.1 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $27 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
78.1
0
$27.33
$12.49
Efficient EV
65.1
0
$22.78
$10.41
EV Truck/SUV
104.1
1
$36.44
$16.66
Gas CO2
91 kg
EV CO2
30 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 18, 2026
Origin
Fremont, CA
Morning
in Fremont on Tuesday
Local time
11:13 AM
PDT
Current temp
56°F
Mostly Cloudy
NW 5 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 12:53PM PDT until July 21 at 11:00PM PDT by NWS Los Angeles/Oxnard CA
Destination
Greenfield, CA
Morning
in Greenfield on Tuesday
Local time
11:13 AM
PDT
Current temp
67°F
Mostly Clear
NW 5 mph1% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 12:53PM PDT until July 21 at 11:00PM PDT by NWS Los Angeles/Oxnard 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
11 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
4h 59m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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.
César E. Chávez National Monument
National Monument
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...
25 mi from route
~63 min detour
Free
near mile 260.3
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.
More Details
What kind of drive is this?
You'll spend a significant portion of your time on highways, with 78% of this 260.3-mile route being on them. The longest continuous stretch on a highway is 158 miles, primarily on the Westside Freeway. After this, you'll transition to surface roads as you approach Greenfield. Expect a mix of urban merging and potentially some rural cruising as you navigate between the Bayshore Freeway and Pacheco Pass Highway.
78% highway — fuel and pacing are the main things to plan.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 158 mi on Westside Freeway.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on Westside Freeway and Pacheco Pass Highway. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.6 miles in.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 260.3 miles you will encounter 11 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 1.6 miles: Lane positioning matters here; at 1.9 miles (I 880 / Nimitz Freeway): Merge point - match speed before joining. Lane positioning matters here; at 15.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
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 4h 59m. Total distance: 260.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 59m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (78%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 158 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — we found about 15 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 Greenfield, 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 1 meaningful breaks. There are 15 rest areas along the route for bathroom stops.
The main spots that need attention: at 1.6 miles: Lane positioning matters here; at 1.9 miles (I 880 / Nimitz Freeway): Merge point - match speed before joining. Lane positioning matters here; at 15.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — César E. Chávez National Monument and San Francisco Maritime National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 5.0 hours each way, an in-and-out day trip would put you behind the wheel for 10.0 hours — manageable with a long break at Greenfield, CA, but most travelers stay overnight.
