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

Distance from Long Flat, NSW to Williamstown, SA

Distance

1,687 km

Time

21 hours 13 mins

Gas Cost

$127 - $329

Helpful Inaccurate

There are 1,315.99 km (817.72 miles) from Long Flat to Williamstown in southwest direction and 1,686.59 km (1,048 miles) by car, following the B56 route.

Long Flat and Williamstown are 21 hours 13 mins far apart, if you drive non-stop .

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

Please note the time difference between Long Flat, NSW and Williamstown, SA is 30 minutes. The current time in Long Flat is 4:04 am and the current time in Williamstown is 3:34 am.

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Lowest Price Rental Cars in Long Flat, NSW

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Long Flat »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 182.20 liters of fuel to cover the route between Long Flat, NSW and Williamstown, SA.

The estimated cost of fuel to go from Long Flat to Williamstown is $273.31.

During the route, an average car will release 4,358.33 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 6, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Long Flat, NSW and Williamstown, SA

If you want to meet halfway between Long Flat, 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 -33.864499 and 146.418769, or 33º 51' 52.1964" S, 146º 25' 7.5684" E. This location is 524.15 miles away from Long Flat, NSW and Williamstown, SA and it would take approximately 10 hours 36 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	817.72 mi	1,315.99 km	710.58 nautical mi
Driving distance	1,048 mi	1,687.08 km	910.95 nautical mi

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