Distance between cities › Australia › New South Wales › Koolkhan, NSW › Distance from Koolkhan to Williamstown Book Hotels

Distance from Koolkhan, NSW to Williamstown, SA

Distance

1,781 km

Time

22 hours 53 mins

Gas Cost

$134 - $347

Helpful Inaccurate

There are 1,435.08 km (891.72 miles) from Koolkhan to Williamstown in southwest direction and 1,781.54 km (1,107 miles) by car, following the Armidale Road route.

Koolkhan and Williamstown are 22 hours 53 mins far apart, if you drive non-stop .

This is the fastest route from Koolkhan, NSW to Williamstown, SA.

Please note the time difference between Koolkhan, NSW and Williamstown, SA is 30 minutes. The current time in Koolkhan is 4:10 pm and the current time in Williamstown is 3:40 pm.

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Lowest Price Rental Cars in Koolkhan, NSW

Planning on renting a car to go from Koolkhan, NSW to Williamstown, SA? Here there are some offers to rent a car in Koolkhan, NSW

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Koolkhan »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 192.40 liters of fuel to cover the route between Koolkhan, NSW and Williamstown, SA.

The estimated cost of fuel to go from Koolkhan to Williamstown is $288.60.

During the route, an average car will release 4,602.21 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.58 kilograms of CO₂ per kilometer.

Average Australia gas price used for calculation is $1.50 per liter of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Koolkhan, NSW and Williamstown, SA

If you want to meet halfway between Koolkhan, NSW and Williamstown, SA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -33.847135 and 146.848374, or 33º 50' 49.686" S, 146º 50' 54.1464" E. This location is 553.48 miles away from Koolkhan, NSW and Williamstown, SA and it would take approximately 11 hours 26 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Koolkhan, NSW and Williamstown, SA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	891.72 mi	1,435.08 km	774.88 nautical mi
Driving distance	1,107 mi	1,781.48 km	961.93 nautical mi

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