San Francisco to Foster City

via I-5

42 min
Drive Time
20
Miles
$2
Gas Cost
$0
Tolls
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Trip Details

Distance20 miles (32 km)
Drive Time42 min
RouteI-5
Best TimeMid-morning (9-11 AM)

Fuel Costs

Gas (30 mpg)~0.7 gallons
Est. Cost$2

Frequently Asked Questions

How long does it take to drive from San Francisco to Foster City?
The drive from San Francisco to Foster City takes approximately 42 min covering 20 miles via I-5. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for San Francisco to Foster City?
At 30 MPG and $3.50/gallon, expect to spend approximately $2 on gas for this 20-mile trip. You'll need about 0.7 gallons of fuel.
What is the best time to drive from San Francisco to Foster City?
Mid-morning (9-11 AM) to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the San Francisco to Foster City route?
This route is primarily toll-free, though some bridges or tunnels may have small fees.