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

Distance from Castleton, VT to Alstead, NH

Distance

66 mi

Time

1 hour 44 mins

Gas Cost

$6 - $12

There are 52 miles from Castleton to Alstead in southeast direction and 66 miles (106.22 kilometers) by car, following the VT 103 route.

Castleton and Alstead are 1 hour 44 mins far apart, if you drive non-stop .

This is the fastest route from Castleton, VT to Alstead, NH. The halfway point is Ludlow, VT.

Castleton, VT and Alstead, NH are in the same time zone (EDT). Current time in both locations is 12:38 am.

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Lowest Price Rental Cars in Castleton, VT

Planning on renting a car to go from Castleton, VT to Alstead, NH? 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 2.66 gallons of gas to cover the route between Castleton, VT and Alstead, NH.

The estimated cost of gas to go from Castleton to Alstead is $8.52.

During the route, an average car will release 52.08 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 Alstead, NH

If you want to meet halfway between Castleton, VT and Alstead, NH or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.428364 and -72.717171, or 43º 25' 42.1104" N, 72º 43' 1.8156" W. This location is 33.09 miles away from Castleton, VT and Alstead, NH and it would take approximately 52 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ludlow, VT, situated 34 miles from Castleton, VT and 32 miles from Alstead, NH. It would take 40 minutes to go from Castleton to Ludlow and 45 minutes to go from Alstead to Ludlow.