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

Distance from Seaton, VIC to Williamstown, SA

Distance

918 km

Time

11 hours 55 mins

Gas Cost

$69 - $179

There are 787.03 km (489.04 miles) from Seaton to Williamstown in northwest direction and 917.33 km (570 miles) by car, following the A8 route.

Seaton and Williamstown are 11 hours 55 mins far apart, if you drive non-stop .

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

Please note the time difference between Seaton, VIC and Williamstown, SA is 30 minutes. The current time in Seaton is 8:35 am and the current time in Williamstown is 8:05 am.

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Lowest Price Rental Cars in Seaton, VIC

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Seaton »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 99.09 liters of fuel to cover the route between Seaton, VIC and Williamstown, SA.

The estimated cost of fuel to go from Seaton to Williamstown is $148.64.

During the route, an average car will release 2,370.26 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 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Seaton, VIC and Williamstown, SA

If you want to meet halfway between Seaton, 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 -36.956059 and 142.583334, or 36º 57' 21.8124" S, 142º 35' 0.0024" E. This location is 285.06 miles away from Seaton, VIC and Williamstown, SA and it would take approximately 5 hours 57 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	489.04 mi	787.03 km	424.96 nautical mi
Driving distance	570 mi	917.51 km	495.42 nautical mi

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