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

Distance from Gap, NSW to Williamstown, SA

Distance

1,416 km

Time

17 hours 33 mins

Gas Cost

$106 - $276

There are 1,151.95 km (715.79 miles) from Gap to Williamstown in southwest direction and 1,416.22 km (880 miles) by car, following the A20 route.

Gap and Williamstown are 17 hours 33 mins far apart, if you drive non-stop .

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

Please note the time difference between Gap, NSW and Williamstown, SA is 30 minutes. The current time in Gap is 12:04 pm and the current time in Williamstown is 11:34 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Gap, NSW to Williamstown, SA:

Lowest Price Rental Cars in Gap, NSW

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Gap »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 152.95 liters of fuel to cover the route between Gap, NSW and Williamstown, SA.

The estimated cost of fuel to go from Gap to Williamstown is $229.42.

During the route, an average car will release 3,658.52 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 7, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Gap, NSW and Williamstown, SA

If you want to meet halfway between Gap, 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 -34.184689 and 145.195565, or 34º 11' 4.8804" S, 145º 11' 44.034" E. This location is 439.99 miles away from Gap, NSW and Williamstown, SA and it would take approximately 8 hours 46 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	715.79 mi	1,151.95 km	622.01 nautical mi
Driving distance	880 mi	1,416.19 km	764.68 nautical mi

Road Trip Tips