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

Distance from Shell Beach, CA to Obrien, CA

Distance

454 mi

Time

8 hours 34 mins

Gas Cost

$69 - $135

There are 400.97 miles from Shell Beach to Obrien in northwest direction and 454 miles (730.64 kilometers) by car, following the I-505 route.

Shell Beach and Obrien are 8 hours 34 mins far apart, if you drive non-stop .

This is the fastest route from Shell Beach, CA to Obrien, CA. The halfway point is San Ramon, CA.

Shell Beach, CA and Obrien, CA are in the same time zone (PDT). Current time in both locations is 4:31 am.

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Lowest Price Rental Cars in Shell Beach, CA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Shell Beach »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 18.24 gallons of gas to cover the route between Shell Beach, CA and Obrien, CA.

The estimated cost of gas to go from Shell Beach to Obrien is $97.35.

During the route, an average car will release 357.44 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 Shell Beach, CA and Obrien, CA

If you want to meet halfway between Shell Beach, 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 37.782890 and -121.969177, or 37º 46' 58.404" N, 121º 58' 9.0372" W. This location is 227.14 miles away from Shell Beach, CA and Obrien, CA and it would take approximately 4 hours 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is San Ramon, CA, situated 229 miles from Shell Beach, CA and 227 miles from Obrien, CA. It would take 3 hours 36 mins to go from Shell Beach to San Ramon and 3 hours 24 mins to go from Obrien to San Ramon.

Major City Closest to Halfway Point

The major city closest to the halfway point between Shell Beach, CA and Obrien, CA is San Francisco, CA, situated 242 miles from Shell Beach, CA and 232 miles from Obrien, CA. It would take 3 hours 49 mins to go from Shell Beach to and 3 hours 31 mins to go from Obrien to San Francisco.