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

Distance from Sunol, CA to Round Mountain, CA

Distance

254 mi

Time

4 hours 46 mins

Gas Cost

$39 - $75

There are 221.09 miles from Sunol to Round Mountain in north direction and 254 miles (408.77 kilometers) by car, following the I-505 route.

Sunol and Round Mountain are 4 hours 46 mins far apart, if you drive non-stop .

This is the fastest route from Sunol, CA to Round Mountain, CA. The halfway point is Maxwell, CA.

Sunol, CA and Round Mountain, CA are in the same time zone (PDT). Current time in both locations is 5:24 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Sunol, CA to Round Mountain, CA:

Lowest Price Rental Cars in Sunol, CA

Planning on renting a car to go from Sunol, CA to Round Mountain, 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 10.21 gallons of gas to cover the route between Sunol, CA and Round Mountain, CA.

The estimated cost of gas to go from Sunol to Round Mountain is $54.48.

During the route, an average car will release 200.04 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 Round Mountain, CA

If you want to meet halfway between Sunol, CA and Round Mountain, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.230164 and -122.181122, or 39º 13' 48.5904" N, 122º 10' 52.0392" W. This location is 127.12 miles away from Sunol, CA and Round Mountain, CA and it would take approximately 2 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Maxwell, CA, situated 132 miles from Sunol, CA and 123 miles from Round Mountain, CA. It would take 2 hours 2 mins to go from Sunol to Maxwell and 2 hours 5 mins to go from Round Mountain to Maxwell.