Distance between cities › USA › California › Sunol, CA › Distance from Sunol to Obrien Book Hotels

Distance from Sunol, CA to Obrien, CA

Distance

241 mi

Time

4 hours 28 mins

Gas Cost

$37 - $72

There are 223.45 miles from Sunol to Obrien in north direction and 241 miles (387.85 kilometers) by car, following the I-505 route.

Sunol and Obrien are 4 hours 28 mins far apart, if you drive non-stop .

This is the fastest route from Sunol, CA to Obrien, CA. The halfway point is Williams, CA.

Sunol, CA and Obrien, CA are in the same time zone (PDT). Current time in both locations is 8:52 pm.

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Lowest Price Rental Cars in Sunol, CA

Planning on renting a car to go from Sunol, CA to Obrien, CA? Here there are some offers to rent a car in Sunol, CA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sunol »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 9.69 gallons of gas to cover the route between Sunol, CA and Obrien, CA.

The estimated cost of gas to go from Sunol to Obrien is $51.71.

During the route, an average car will release 189.85 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $5.34 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Sunol, CA and Obrien, CA

If you want to meet halfway between Sunol, CA and Obrien, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.120216 and -122.120018, or 39º 7' 12.7776" N, 122º 7' 12.0648" W. This location is 120.64 miles away from Sunol, CA and Obrien, CA and it would take approximately 2 hours 14 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Williams, CA, situated 123 miles from Sunol, CA and 119 miles from Obrien, CA. It would take 1 hour 54 mins to go from Sunol to Williams and 1 hour 46 mins to go from Obrien to Williams.