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

Distance from Speed, VIC to Williamstown, SA

Distance

403 km

Time

5 hours 4 mins

Gas Cost

$30 - $79

There are 332.77 km (206.78 miles) from Speed to Williamstown in northwest direction and 403.95 km (251 miles) by car, following the B12 route.

Speed and Williamstown are 5 hours 4 mins far apart, if you drive non-stop .

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

Please note the time difference between Speed, VIC and Williamstown, SA is 30 minutes. The current time in Speed is 12:44 am and the current time in Williamstown is 12:14 am.

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Lowest Price Rental Cars in Speed, VIC

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Speed »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 43.56 liters of fuel to cover the route between Speed, VIC and Williamstown, SA.

The estimated cost of fuel to go from Speed to Williamstown is $65.34.

During the route, an average car will release 1,041.92 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 Speed, VIC and Williamstown, SA

If you want to meet halfway between Speed, 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 -35.316482 and 140.575027, or 35º 18' 59.3352" S, 140º 34' 30.0972" E. This location is 125.31 miles away from Speed, VIC and Williamstown, SA and it would take approximately 2 hours 32 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	206.78 mi	332.77 km	179.68 nautical mi
Driving distance	251 mi	403.32 km	217.78 nautical mi

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