Distance between cities › USA › California › Williams, CA › Distance from Williams to Annapolis Book Hotels

Distance from Williams, CA to Annapolis, CA

Distance

155 mi

Time

3 hours 57 mins

Gas Cost

$23 - $45

There are 72.07 miles from Williams to Annapolis in southwest direction and 155 miles (249.45 kilometers) by car, following the CA 20 route.

Williams and Annapolis are 3 hours 57 mins far apart, if you drive non-stop .

This is the fastest route from Williams, CA to Annapolis, CA. The halfway point is American Canyon, CA.

Williams, CA and Annapolis, CA are in the same time zone (PDT). Current time in both locations is 6:24 pm.

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Lowest Price Rental Cars in Williams, CA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williams »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 6.21 gallons of gas to cover the route between Williams, CA and Annapolis, CA.

The estimated cost of gas to go from Williams to Annapolis is $32.83.

During the route, an average car will release 121.57 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 $5.29 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Williams, CA and Annapolis, CA

If you want to meet halfway between Williams, CA and Annapolis, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.150406 and -122.388184, or 38º 9' 1.4616" N, 122º 23' 17.4624" W. This location is 77.26 miles away from Williams, CA and Annapolis, CA and it would take approximately 1 hour 58 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is American Canyon, CA, situated 84 miles from Williams, CA and 103 miles from Annapolis, CA. It would take 1 hour 18 mins to go from Williams to American Canyon and 2 hours 25 mins to go from Annapolis to American Canyon.

Major City Closest to Halfway Point

The major city closest to the halfway point between Williams, CA and Annapolis, CA is Vallejo, CA, situated 84 miles from Williams, CA and 101 miles from Annapolis, CA. It would take 1 hour 18 mins to go from Williams to and 2 hours 23 mins to go from Annapolis to Vallejo.