How far is San Martin, CA from Palo Alto, CA?

The driving distance from San Martin, CA to Palo Alto, CA is about 42.3 miles (68.1 km), with a travel time of about 00h 42m by car.

  • The straight-line flight distance is about 38.3 miles (61.6 km).
  • For a round trip, plan for roughly 01h 25m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
42.35 mi
00h 42m
Flight
38.3 mi
61.63 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from San Martin.

Flight Distance

Direct air line
38.3 mi
Kilometers
61.63 km
Flight Time
00h 04m

Driving Distance

Road route
42.35 mi
Kilometers
68.15 km
Drive Time
00h 42m

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 42m.

Arrival Snapshot
Arrive in Palo Alto
Thu, Oct 15, 6:12 PM PDT
Return by in San Martin
Thu, Oct 15, 6:55 PM PDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave San Martin
2026-10-15T17:29
Arrive Palo Alto
Thu, Oct 15, 6:12 PM PDT
Route Timing
00h 42m
One way by road
Best Departure Window
7:00 AM to 7:00 PM PDT
Leave when it suits your day
Arrive between
7:43 AM to 7:43 PM PDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:04 PM PDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in San Martin
10:00 PM PDT
Flexible departure

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Seven Trees
CA

Census-designated place in South San Jose

From San Martin
21.1 mi
00h 21m
To Palo Alto
21.2 mi
00h 21m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
76°F
This Afternoon

Sunny

Starts
Thu, Oct 15 12:00 PM PDT
Wind
7 mph NE
Destination
88°F
Today

Sunny

Starts
Thu, Oct 15 7:00 AM PDT
Wind
2 to 8 mph ENE

Driving Route Map

The map below follows the saved road route between San Martin and Palo Alto.

Turn-by-Turn Driving Directions

Step-by-step road directions between San Martin and Palo Alto.

  1. 1

    Start on East San Martin Avenue

    1.2 km · 2 min · East San Martin Avenue

  2. 2

    Take the ramp left

    1327 ft · 34 sec

  3. 3

    Merge slight left onto South Valley Freeway

    13.7 mi · 16 min · South Valley Freeway

  4. 4

    Keep slight left

    21.9 mi · 25 min

  5. 5

    Keep slight left

    3.7 mi · 4 min

  6. 6

    Take the exit slight right toward Embarcadero Road, Oregon Expressway, Stanford University

    1343 ft · 38 sec

  7. 7

    Keep slight left to continue on Stanford University, Embarcadero Road

    994 ft · 24 sec

  8. 8

    Keep slight left to continue on US 101 North: Stanford University, Embarcadero Road West, San Francisco

    877 ft · 21 sec

  9. 9

    Keep slight right to continue on Stanford University, Embarcadero Road West

    832 ft · 21 sec

  10. 10

    Continue on Embarcadero Road

    1.2 mi · 4 min · Embarcadero Road

  11. 11

    Turn sharp left onto Middlefield Road

    30 m · 3 sec · Middlefield Road

  12. 12

    Arrive at your destination

    0 m · 1 sec · Middlefield Road

Car Route Details

A richer read on the saved driving route between San Martin and Palo Alto.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
12 steps
1 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
28.4 / 100 mi
Decision points by distance
Main Roads
South Valley Freeway
39.3 mi · 93%
Embarcadero Road
1.5 mi · 4%
East San Martin Avenue
1.02 mi · 2%
Stanford University
0.35 mi · 1%
US 101 North
0.17 mi
Middlefield Road
0.02 mi
Longest Stretch

South Valley Freeway

Keep slight left

21.9 mi · 00h 25m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 42m
Quick drive
Same-Day Return
01h 26m
Round-trip wheel time
Road vs Air
+4 mi
38.3 mi direct line
Halfway Stop
Seven Trees
00h 21m from San Martin
Leave By
7:04 PM PDT
Flexible departure
Weather Watch

Sunny leaving San Martin and Sunny near Palo Alto.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from San Martin to Palo Alto?

The road trip is about 42.3 miles (68.1 km) and usually takes 00h 42m 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?

Seven Trees is a useful midpoint, sitting about 21.1 miles from San Martin and 21.2 miles from Palo Alto.

How much longer is the road route than the straight-line distance?

The direct path is about 38.3 miles (61.6 km), while the road route adds roughly 4 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 7:04 PM PDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $9.39 one way or $18.78 round trip. Estimated CO2 is about 13.3 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around San Martin and Sunny near Palo Alto.

Flight Path Map

This map shows the direct air route between San Martin and Palo Alto. Straight-line distance: 38.3 mi (61.63 km).

Photo coming soon

#1 San Martin

Situated in the southern Santa Clara Valley between Morgan Hill and Gilroy, this unincorporated community lies at an elevation of 289 feet.

Population0
Coordinates37.0849500, -121.6102200
Altitude88
CountryUnited States
Palo Alto

#2 Palo Alto

The most populous city in Santa Clara County, California.

Population67,008
Coordinates37.4418800, -122.1430200
Altitude9
CountryUnited States
Start: East San Martin Avenue (-121.610243, 37.084992)
End: Middlefield Road (-122.14292, 37.441976)

Estimated Travel Time

Distance: 68 km by road

SpeedTime
30 mph (48.3 km/h)01h 24m
40 mph (64.37 km/h)01h 03m
50 mph (80.47 km/h)00h 50m
60 mph (96.56 km/h)00h 42m
70 mph (112.65 km/h)00h 36m
80 mph (129 km/h)00h 31m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.5 gal
5.66 L · about $9.39
Round trip
$18.78
3 gal · 11.32 L
Estimated CO2
13.3 kg one way
Round trip: 26.7 kg / 59 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $6.26 $9.39 $18.78
Mid-grade $6.50 $9.75 $19.50
Premium $6.69 $10.03 $20.07
Diesel $8.41 $12.62 $25.24

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

There is no time difference between San Martin and Palo Alto. The current time is 17:29:33.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.