Distance between cities › Australia › South Australia › Williamstown, SA › Distance from Williamstown to St Clair Book Hotels

Distance from Williamstown, SA to St Clair, VIC

Distance

863 km

Time

11 hours 7 mins

Gas Cost

$65 - $168

Helpful Inaccurate

There are 743.57 km (462.03 miles) from Williamstown to St Clair in southeast direction and 862.61 km (536 miles) by car, following the A8 route.

Williamstown and St Clair are 11 hours 7 mins far apart, if you drive non-stop .

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

Please note the time difference between Williamstown, SA and St Clair, VIC is 30 minutes. The current time in Williamstown is 1:57 pm and the current time in St Clair is 2:27 pm.

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Lowest Price Rental Cars in Williamstown, SA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 93.19 liters of fuel to cover the route between Williamstown, SA and St Clair, VIC.

The estimated cost of fuel to go from Williamstown to St Clair is $139.78.

During the route, an average car will release 2,229.01 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 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Williamstown, SA and St Clair, VIC

If you want to meet halfway between Williamstown, SA and St Clair, VIC or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -36.777843 and 142.287354, or 36º 46' 40.2348" S, 142º 17' 14.4744" E. This location is 268.07 miles away from Williamstown, SA and St Clair, VIC and it would take approximately 5 hours 33 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	462.03 mi	743.57 km	401.50 nautical mi
Driving distance	536 mi	862.83 km	465.89 nautical mi

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