Distance between cities › Canada › New Brunswick › Clair, NB › Distance from Clair to Williamstown Book Hotels

Distance from Clair, NB to Williamstown, ON

Distance

623 km

Time

8 hours 18 mins

Gas Cost

$47 - $113

There are 515.84 km (320.53 miles) from Clair to Williamstown in southwest direction and 622.82 km (387 miles) by car, following the 20 route.

Clair and Williamstown are 8 hours 18 mins far apart, if you drive non-stop .

This is the fastest route from Clair, NB to Williamstown, ON.

Please note the time difference between Clair, NB and Williamstown, ON is 1 hour. The current time in Clair is 11:02 pm and the current time in Williamstown is 10:02 pm.

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Lowest Price Rental Cars in Clair, NB

Planning on renting a car to go from Clair, NB to Williamstown, ON? Here there are some offers to rent a car in Clair, NB

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Clair »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 55.41 liters of gas to cover the route between Clair, NB and Williamstown, ON.

The estimated cost of gas to go from Clair to Williamstown is $83.67.

During the route, an average car will release 1,325.44 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.13 kilograms of CO₂ per kilometer.

Average Canada gas price used for calculation is $1.51 per liter of regular gas. Price last updated on March 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Clair, NB and Williamstown, ON

If you want to meet halfway between Clair, NB and Williamstown, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.609934 and -71.521508, or 46º 36' 35.7624" N, 71º 31' 17.4288" W. This location is 193.43 miles away from Clair, NB and Williamstown, ON and it would take approximately 4 hours 9 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint-Apollinaire, QC, situated 193 miles from Clair, NB and 195 miles from Williamstown, ON. It would take 4 hours 15 mins to go from Clair to Saint-Apollinaire and 4 hours 5 mins to go from Williamstown to Saint-Apollinaire.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Clair, NB and Williamstown, ON in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	320.53 mi	515.84 km	278.53 nautical mi
Driving distance	387 mi	622.60 km	336.18 nautical mi

Road Trip Tips