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

Distance from Ada, VIC to Williamstown, SA

Distance

818 km

Time

11 hours 14 mins

Gas Cost

$61 - $159

There are 716.82 km (445.41 miles) from Ada to Williamstown in northwest direction and 817.55 km (508 miles) by car, following the A8 route.

Ada and Williamstown are 11 hours 14 mins far apart, if you drive non-stop .

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

Please note the time difference between Ada, VIC and Williamstown, SA is 30 minutes. The current time in Ada is 9:30 am and the current time in Williamstown is 9:00 am.

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Lowest Price Rental Cars in Ada, VIC

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ada »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 88.31 liters of fuel to cover the route between Ada, VIC and Williamstown, SA.

The estimated cost of fuel to go from Ada to Williamstown is $132.47.

During the route, an average car will release 2,112.48 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 10, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Ada, VIC and Williamstown, SA

If you want to meet halfway between Ada, 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 -36.671364 and 142.155792, or 36º 40' 16.9104" S, 142º 9' 20.8512" E. This location is 254.06 miles away from Ada, VIC and Williamstown, SA and it would take approximately 5 hours 37 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	445.41 mi	716.82 km	387.05 nautical mi
Driving distance	508 mi	817.73 km	441.54 nautical mi

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