How far is Byron, CA from San Jose, CA?
The driving distance from Byron, CA to San Jose, CA is about 55.4 miles (89.2 km), with a travel time of about 01h 03m by car.
- The straight-line flight distance is about 39.1 miles (62.9 km).
- For a round trip, plan for roughly 02h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 03m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Alameda County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Byron and San Jose.
Turn-by-Turn Driving Directions
Step-by-step road directions between Byron and San Jose.
-
1
Start on the route
5 m · 3 sec
-
2
Turn right onto Byron Highway
48 m · 6 sec · Byron Highway
-
3
Turn left onto Camino Diablo
1.6 mi · 4 min · Camino Diablo
-
4
Turn left onto Vasco Road
14.2 mi · 20 min · Vasco Road
-
5
Take the exit slight right toward I 580 West: Oakland
2042 ft · 52 sec
-
6
Merge slight left onto Arthur H. Breed Junior Freeway
3.7 mi · 4 min · Arthur H. Breed Junior Freeway
-
7
Take the exit slight right toward CA 84: Isabel Avenue, Portola Avenue
1611 ft · 41 sec
-
8
Turn left onto Isabel Avenue
4.7 mi · 7 min · Isabel Avenue
-
9
Continue on Vallecitos Road
5.2 mi · 7 min · Vallecitos Road
-
10
Keep slight left to continue on I 680 South: Fremont, San Jose
2276 ft · 56 sec
-
11
Merge slight left
8.3 mi · 10 min
-
12
Take the exit slight right toward CA 262
866 ft · 21 sec
-
13
Keep slight right to continue on CA 262: Northwestern Polytechnic University, Warm Springs District
1597 ft · 39 sec
-
14
Merge slight left onto Mission Boulevard
1.5 mi · 2 min · Mission Boulevard
-
15
Merge slight left onto Nimitz Freeway
8.3 mi · 10 min · Nimitz Freeway
-
16
Take the exit slight right toward Downtown, North First Street
991 ft · 26 sec
-
17
Turn left onto North 1st Street
1.5 mi · 4 min · North 1st Street
-
18
Turn right onto West Julian Street
151 m · 18 sec · West Julian Street
-
19
Turn left onto North Market Street
60 m · 7 sec · North Market Street
-
20
Arrive at your destination
0 m · 1 sec · North Market Street
Car Route Details
A richer read on the saved driving route between Byron and San Jose.
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.
Vasco Road
Turn left onto Vasco Road
14.2 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Byron and Sunny near San Jose.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Byron to San Jose?
The road trip is about 55.4 miles (89.2 km) and usually takes 01h 03m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Livermore is a useful midpoint, sitting about 25.5 miles from Byron and 29.9 miles from San Jose.
How much longer is the road route than the straight-line distance?
The direct path is about 39.1 miles (62.9 km), while the road route adds roughly 16.3 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 4:22 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.21 one way or $24.42 round trip. Estimated CO2 is about 17.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Byron and Sunny near San Jose.
Stop Ideas Near Livermore
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 Livermore.
Livermore, California
Livermore, CA
Pleasanton, CA
Dublin-Pleasanton, California
Flight Path Map
This map shows the direct air route between Byron and San Jose. Straight-line distance: 39.08 mi (62.9 km).
#1 Byron
Situated in eastern Contra Costa County at an elevation of 33 feet, this unincorporated community sits in the western San Joaquin Valley near the Sacramento-San Joaquin River Delta.
| Population | 0 |
| Coordinates | 37.8671500, -121.6380100 |
| Altitude | 10 |
| Country | United States |
#2 San Jose
The tenth most populous city in the United States and the center of the San Jose metropolitan area.
| Population | 1,013,616 |
| Coordinates | 37.3393900, -121.8949600 |
| Altitude | 26 |
| Country | United States |
End: North Market Street (-121.894962, 37.339389)
Estimated Travel Time
Distance: 89 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 50m |
| 40 mph (64.37 km/h) | 01h 23m |
| 50 mph (80.47 km/h) | 01h 06m |
| 60 mph (96.56 km/h) | 00h 55m |
| 70 mph (112.65 km/h) | 00h 47m |
| 80 mph (129 km/h) | 00h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $12.21 | $24.42 |
| Mid-grade | $6.50 | $12.67 | $25.35 |
| Premium | $6.69 | $13.04 | $26.09 |
| Diesel | $8.41 | $16.41 | $32.81 |
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 · Oct 15, 2026