How far is San Francisco, CA from Alamo, CA?
The driving distance from San Francisco, CA to Alamo, CA is about 27.7 miles (44.5 km), with a travel time of about 00h 39m by car.
- The straight-line flight distance is about 21.7 miles (35 km).
- For a round trip, plan for roughly 01h 19m 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 39m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between San Francisco and Alamo.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Francisco and Alamo.
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1
Start on Market Street
95 m · 8 sec · Market Street
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2
Turn right onto 11th Street
3173 ft · 2 min · 11th Street
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3
Turn left onto Bryant Street
1724 ft · 1 min · Bryant Street
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4
Take the ramp left toward I 80 East: Oakland
1538 ft · 26 sec
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5
Merge slight right onto Route 80
1.5 km · 1 min · Route 80
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6
Continue on Dwight D. Eisenhower Highway
5.8 mi · 9 min · Dwight D. Eisenhower Highway
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7
Take the exit slight right toward I 580 East: Downtown Oakland, Hayward-Stockton
1.6 km · 1 min
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8
Merge slight left onto MacArthur Freeway
3218 ft · 42 sec · MacArthur Freeway
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9
Take the exit slight right toward CA 24 East: Berkeley, Walnut Creek
1.4 km · 2 min
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10
Keep slight left to continue on CA 24 East: Walnut Creek
1259 ft · 31 sec
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11
Merge slight left onto Grove Shafter Freeway
3.3 mi · 4 min · Grove Shafter Freeway
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12
Keep slight left to continue on Grove Shafter Freeway
874 ft · 13 sec · Grove Shafter Freeway
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13
Continue on Caldecott Tunnel
8.8 mi · 10 min · Caldecott Tunnel
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14
Take the exit slight right toward I 680 South: Mount Diablo Boulevard, San Jose
1351 ft · 33 sec
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15
Keep slight right to continue on I 680 South: San Jose, Dublin, South Main Street
1.2 km · 2 min
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16
Merge slight left onto Senator Daniel E Boatwright Highway
1269 ft · 17 sec · Senator Daniel E Boatwright Highway
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17
Continue on Donald D Doyle Highway
1.4 mi · 2 min · Donald D Doyle Highway
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18
Keep slight right to continue on Donald D Doyle Highway
1.7 mi · 2 min · Donald D Doyle Highway
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19
Take the exit slight right toward Stone Valley Road West
1357 ft · 34 sec
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20
Turn right onto Stone Valley Road
960 ft · 32 sec · Stone Valley Road
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21
Turn left onto Danville Boulevard
34 m · 8 sec · Danville Boulevard
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22
Turn left
92 m · 22 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Francisco and Alamo.
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.
Caldecott Tunnel
Continue on Caldecott Tunnel
8.76 mi · 00h 10m
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.
Showers And Thunderstorms Likely leaving San Francisco and Showers And Thunderstorms Likely near Alamo.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Francisco to Alamo?
The road trip is about 27.7 miles (44.5 km) and usually takes 00h 39m 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?
Piedmont is a useful midpoint, sitting about 13.8 miles from San Francisco and 13.9 miles from Alamo.
How much longer is the road route than the straight-line distance?
The direct path is about 21.7 miles (35 km), while the road route adds roughly 6 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 7:10 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.65 one way or $11.31 round trip. Estimated CO2 is about 8.7 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around San Francisco and Showers And Thunderstorms Likely near Alamo.
Stop Ideas Near Piedmont
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
San Francisco City Hall Wedding Photographer
Alameda Public Works Department
SF City Hall Photo
My City Hall Wedding
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Piedmont.
Emeryville station
Oakland – Jack London Square station
Berkeley station
Oakland Coliseum station
Flight Path Map
This map shows the direct air route between San Francisco and Alamo. Straight-line distance: 21.77 mi (35.03 km).
#1 San Francisco
The seventeenth most populous city in the United States and the center of the San Francisco Bay Area.
| Population | 866,606 |
| Coordinates | 37.7749300, -122.4194200 |
| Altitude | 16 |
| Country | United States |
#2 Alamo
Census designated place in California, United States
| Population | 14,570 |
| Coordinates | 37.8502000, -122.0321800 |
| Altitude | 79 |
| Country | United States |
End: Alamo (-122.03218, 37.8502)
Estimated Travel Time
Distance: 45 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 55m |
| 40 mph (64.37 km/h) | 00h 41m |
| 50 mph (80.47 km/h) | 00h 33m |
| 60 mph (96.56 km/h) | 00h 27m |
| 70 mph (112.65 km/h) | 00h 23m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $5.65 | $11.31 |
| Mid-grade | $6.07 | $5.94 | $11.89 |
| Premium | $6.24 | $6.12 | $12.24 |
| Diesel | $7.57 | $7.42 | $14.83 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.