Distance between cities › Australia › Victoria › Simpson, VIC › Distance from Simpson to Williamstown Book Hotels

Distance from Simpson, VIC to Williamstown, SA

Distance

666 km

Time

8 hours 47 mins

Gas Cost

$50 - $130

There are 576.37 km (358.14 miles) from Simpson to Williamstown in northwest direction and 666.27 km (414 miles) by car, following the A66 route.

Simpson and Williamstown are 8 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Simpson, VIC to Williamstown, SA.

Please note the time difference between Simpson, VIC and Williamstown, SA is 30 minutes. The current time in Simpson is 12:08 am (Mar 7) and the current time in Williamstown is 11:38 pm (Mar 6).

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Lowest Price Rental Cars in Simpson, VIC

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Simpson »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 71.97 liters of fuel to cover the route between Simpson, VIC and Williamstown, SA.

The estimated cost of fuel to go from Simpson to Williamstown is $107.95.

During the route, an average car will release 1,721.52 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 6, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Simpson, VIC and Williamstown, SA

If you want to meet halfway between Simpson, VIC 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 -37.075207 and 140.777156, or 37º 4' 30.7452" S, 140º 46' 37.7616" E. This location is 207.04 miles away from Simpson, VIC and Williamstown, SA and it would take approximately 4 hours 23 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Simpson, VIC and Williamstown, SA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	358.14 mi	576.37 km	311.22 nautical mi
Driving distance	414 mi	666.39 km	359.82 nautical mi

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