Distance between cities › USA › South Dakota › Madison, SD › Distance from Madison to Riddle Book Hotels

Distance from Madison, SD to Riddle, ID

Distance

1,317 mi

Time

23 hours 10 mins

Gas Cost

$121 - $234

There are 964.41 miles from Madison to Riddle in west direction and 1,317 miles (2,119.51 kilometers) by car, following the I-90 route.

Madison and Riddle are 23 hours 10 mins far apart, if you drive non-stop .

This is the fastest route from Madison, SD to Riddle, ID.

Please note the time difference between Madison, SD and Riddle, ID is 1 hour. The current time in Madison is 12:59 am (Mar 12) and the current time in Riddle is 11:59 pm (Mar 11).

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Lowest Price Rental Cars in Madison, SD

Planning on renting a car to go from Madison, SD to Riddle, ID? Here there are some offers to rent a car in Madison, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Madison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 52.90 gallons of gas to cover the route between Madison, SD and Riddle, ID.

The estimated cost of gas to go from Madison to Riddle is $169.49.

During the route, an average car will release 1,036.43 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Madison, SD and Riddle, ID

If you want to meet halfway between Madison, SD and Riddle, ID or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.548948 and -107.08535, or 42º 32' 56.2128" N, 107º 5' 7.26" W. This location is 658.61 miles away from Madison, SD and Riddle, ID and it would take approximately 11 hours 35 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alcova, WY, situated 627 miles from Madison, SD and 692 miles from Riddle, ID. It would take 11 hours 3 mins to go from Madison to Alcova and 12 hours 11 mins to go from Riddle to Alcova.