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

Distance from Harefield, NSW to Williamstown, SA

Distance

926 km

Time

11 hours 22 mins

Gas Cost

$69 - $181

Helpful Inaccurate

There are 784.80 km (487.65 miles) from Harefield to Williamstown in west direction and 925.37 km (575 miles) by car, following the A20 route.

Harefield and Williamstown are 11 hours 22 mins far apart, if you drive non-stop .

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

Please note the time difference between Harefield, NSW and Williamstown, SA is 30 minutes. The current time in Harefield is 1:26 am and the current time in Williamstown is 12:56 am.

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Lowest Price Rental Cars in Harefield, NSW

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Harefield »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 99.98 liters of fuel to cover the route between Harefield, NSW and Williamstown, SA.

The estimated cost of fuel to go from Harefield to Williamstown is $149.97.

During the route, an average car will release 2,391.51 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 10, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Harefield, NSW and Williamstown, SA

If you want to meet halfway between Harefield, 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 -34.560429 and 143.088238, or 34º 33' 37.5444" S, 143º 5' 17.6568" E. This location is 287.61 miles away from Harefield, NSW and Williamstown, SA and it would take approximately 5 hours 41 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	487.65 mi	784.80 km	423.76 nautical mi
Driving distance	575 mi	925.73 km	499.86 nautical mi

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