Distance between cities › USA › South Dakota › Webster, SD › Distance from Webster to Roberts Book Hotels

Distance from Webster, SD to Roberts, IL

Distance

738 mi

Time

14 hours 4 mins

Gas Cost

$69 - $134

There are 573.09 miles from Webster to Roberts in southeast direction and 738 miles (1,187.70 kilometers) by car, following the I-94 route.

Webster and Roberts are 14 hours 4 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Roberts, IL.

Webster, SD and Roberts, IL are in the same time zone (CDT). Current time in both locations is 1:05 pm.

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Lowest Price Rental Cars in Webster, SD

Planning on renting a car to go from Webster, SD to Roberts, IL? Here there are some offers to rent a car in Webster, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webster »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 29.64 gallons of gas to cover the route between Webster, SD and Roberts, IL.

The estimated cost of gas to go from Webster to Roberts is $96.69.

During the route, an average car will release 580.74 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 Webster, SD and Roberts, IL

If you want to meet halfway between Webster, SD and Roberts, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.765465 and -91.437442, or 44º 45' 55.674" N, 91º 26' 14.7912" W. This location is 369.04 miles away from Webster, SD and Roberts, IL and it would take approximately 7 hours 2 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Altoona, WI, situated 339 miles from Webster, SD and 404 miles from Roberts, IL. It would take 6 hours 34 mins to go from Webster to Altoona and 7 hours 44 mins to go from Roberts to Altoona.