Distance between cities › USA › South Dakota › Sioux Falls, SD › Distance from Sioux Falls to Helm Book Hotels

Distance from Sioux Falls, SD to Helm, CA

Distance

1,797 mi

Time

1 day 7 hours

Gas Cost

$168 - $326

There are 1,322.09 miles from Sioux Falls to Helm in southwest direction and 1,797 miles (2,891.99 kilometers) by car, following the I-90 route.

Sioux Falls and Helm are 1 day 7 hours far apart, if you drive non-stop .

This is the fastest route from Sioux Falls, SD to Helm, CA. The halfway point is Green River, WY.

Please note the time difference between Sioux Falls, SD and Helm, CA is 2 hours. The current time in Sioux Falls is 10:47 pm and the current time in Helm is 8:47 pm.

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Lowest Price Rental Cars in Sioux Falls, SD

Planning on renting a car to go from Sioux Falls, SD to Helm, CA? Here there are some offers to rent a car in Sioux Falls, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sioux Falls »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 72.19 gallons of gas to cover the route between Sioux Falls, SD and Helm, CA.

The estimated cost of gas to go from Sioux Falls to Helm is $235.47.

During the route, an average car will release 1,414.29 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 Sioux Falls, SD and Helm, CA

If you want to meet halfway between Sioux Falls, SD and Helm, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.574860 and -109.595863, or 41º 34' 29.496" N, 109º 35' 45.1068" W. This location is 898.73 miles away from Sioux Falls, SD and Helm, CA and it would take approximately 15 hours 50 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 920 miles from Sioux Falls, SD and 990 miles from Helm, CA. It would take 12 hours 31 mins to go from Sioux Falls to Green River and 14 hours 13 mins to go from Helm to Green River.