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

Distance from Castleton, VT to Sullivan, NH

Distance

88 mi

Time

2 hours 9 mins

Gas Cost

$8 - $16

There are 63.47 miles from Castleton to Sullivan in southeast direction and 88 miles (141.62 kilometers) by car, following the VT 103 route.

Castleton and Sullivan are 2 hours 9 mins far apart, if you drive non-stop .

This is the fastest route from Castleton, VT to Sullivan, NH.

Castleton, VT and Sullivan, NH are in the same time zone (EDT). Current time in both locations is 1:59 am.

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Lowest Price Rental Cars in Castleton, VT

Planning on renting a car to go from Castleton, VT to Sullivan, 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 3.54 gallons of gas to cover the route between Castleton, VT and Sullivan, NH.

The estimated cost of gas to go from Castleton to Sullivan is $11.34.

During the route, an average car will release 69.34 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 Sullivan, NH

If you want to meet halfway between Castleton, VT and Sullivan, NH or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.318965 and -72.608565, or 43º 19' 8.274" N, 72º 36' 30.834" W. This location is 44.06 miles away from Castleton, VT and Sullivan, NH and it would take approximately 1 hour 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Baltimore, VT, situated 46 miles from Castleton, VT and 49 miles from Sullivan, NH. It would take 1 hour 17 mins to go from Castleton to Baltimore and 1 hour 15 mins to go from Sullivan to Baltimore.