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

Distance from Williams, CA to Mellette, SD

Distance

1,638 mi

Time

1 day 5 hours

Gas Cost

$153 - $297

There are 1,274.91 miles from Williams to Mellette in northeast direction and 1,638 miles (2,636.11 kilometers) by car, following the I-80 route.

Williams and Mellette are 1 day 5 hours far apart, if you drive non-stop .

This is the fastest route from Williams, CA to Mellette, SD.

Please note the time difference between Williams, CA and Mellette, SD is 2 hours. The current time in Williams is 12:20 am and the current time in Mellette is 2:20 am.

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Lowest Price Rental Cars in Williams, CA

Planning on renting a car to go from Williams, CA to Mellette, SD? 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 65.79 gallons of gas to cover the route between Williams, CA and Mellette, SD.

The estimated cost of gas to go from Williams to Mellette is $214.61.

During the route, an average car will release 1,288.97 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 $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Williams, CA and Mellette, SD

If you want to meet halfway between Williams, CA and Mellette, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.54503 and -109.621032, or 41º 32' 42.108" N, 109º 37' 15.7152" W. This location is 819.10 miles away from Williams, CA and Mellette, SD and it would take approximately 14 hours 36 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Green River, WY, situated 839 miles from Williams, CA and 799 miles from Mellette, SD. It would take 14 hours 36 mins to go from Williams to Green River and 14 hours 42 mins to go from Mellette to Green River.