How far is Fremont, CA from Alum Rock, CA?
The driving distance from Fremont, CA to Alum Rock, CA is about 17.6 miles (28.3 km), with a travel time of about 00h 25m by car.
- The straight-line flight distance is about 15.4 miles (24.8 km).
- For a round trip, plan for roughly 00h 50m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 25m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Santa Clara County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Driving Route Map
The map below follows the saved road route between Fremont and Alum Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fremont and Alum Rock.
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1
Start on Mowry Avenue
33 m · 7 sec · Mowry Avenue
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2
Turn right onto Fremont Boulevard
1.9 mi · 5 min · Fremont Boulevard
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3
Continue on Washington Boulevard
1.5 km · 2 min · Washington Boulevard
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4
Turn left onto I 680 South: San Jose
1737 ft · 44 sec
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5
Merge slight left
2.7 mi · 3 min
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6
Keep slight right
10.4 mi · 12 min
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7
Take the exit slight right toward Alum Rock Avenue
1547 ft · 40 sec
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8
Turn left onto Alum Rock Avenue
1.6 km · 2 min · Alum Rock Avenue
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9
Arrive at your destination
0 m · 1 sec · Alum Rock Avenue
Car Route Details
A richer read on the saved driving route between Fremont and Alum Rock.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 680 South
Keep slight right
10.4 mi · 00h 12m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Cloudy leaving Fremont and Mostly Clear near Alum Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fremont to Alum Rock?
The road trip is about 17.6 miles (28.3 km) and usually takes 00h 25m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Milpitas is a useful midpoint, sitting about 8.8 miles from Fremont and 8.8 miles from Alum Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 15.4 miles (24.8 km), while the road route adds roughly 2.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:40 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.58 one way or $7.15 round trip. Estimated CO2 is about 5.5 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Fremont and Mostly Clear near Alum Rock.
Stop Ideas Near Milpitas
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Milpitas.
Santa Clara – Great America station
Santa Clara station
San Jose Diridon station
Fremont (San Joaquin Buses), California
Flight Path Map
This map shows the direct air route between Fremont and Alum Rock. Straight-line distance: 15.39 mi (24.77 km).
#1 Fremont
The fifth most populous city in California.
| Population | 234,569 |
| Coordinates | 37.5482700, -121.9885700 |
| Altitude | 17 |
| Country | United States |
#2 Alum Rock
Census-designated place in Santa Clara County, California
| Population | 15,536 |
| Coordinates | 37.3660500, -121.8271800 |
| Altitude | 46 |
| Country | United States |
End: Alum Rock (-121.82718, 37.36605)
Estimated Travel Time
Distance: 28 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 35m |
| 40 mph (64.37 km/h) | 00h 26m |
| 50 mph (80.47 km/h) | 00h 21m |
| 60 mph (96.56 km/h) | 00h 17m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $3.58 | $7.15 |
| Mid-grade | $6.07 | $3.76 | $7.52 |
| Premium | $6.24 | $3.87 | $7.74 |
| Diesel | $7.57 | $4.69 | $9.38 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in California · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.