Distance between cities › USA › Vermont › Castleton, VT › Distance from Castleton to Williamson Book Hotels

Distance from Castleton, VT to Williamson, IA

Distance

1,203 mi

Time

23 hours 24 mins

Gas Cost

$110 - $214

There are 1,037.18 miles from Castleton to Williamson in west direction and 1,203 miles (1,936.04 kilometers) by car, following the I-90 route.

Castleton and Williamson are 23 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from Castleton, VT to Williamson, IA.

Please note the time difference between Castleton, VT and Williamson, IA is 1 hour. The current time in Castleton is 12:59 am (Mar 12) and the current time in Williamson is 11:59 pm (Mar 11).

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Castleton, VT to Williamson, IA:

Lowest Price Rental Cars in Castleton, VT

Planning on renting a car to go from Castleton, VT to Williamson, IA? Here there are some offers to rent a car in Castleton, VT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Castleton »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 48.31 gallons of gas to cover the route between Castleton, VT and Williamson, IA.

The estimated cost of gas to go from Castleton to Williamson is $154.79.

During the route, an average car will release 946.54 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 Castleton, VT and Williamson, IA

If you want to meet halfway between Castleton, VT and Williamson, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.385675 and -83.038441, or 41º 23' 8.43" N, 83º 2' 18.3876" W. This location is 601.49 miles away from Castleton, VT and Williamson, IA and it would take approximately 11 hours 42 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Fremont, OH, situated 612 miles from Castleton, VT and 599 miles from Williamson, IA. It would take 12 hours 16 mins to go from Castleton to Fremont and 11 hours 20 mins to go from Williamson to Fremont.