Distance between cities › Australia › Tasmania › Prospect, TAS › Distance from Prospect to Williamstown Book Hotels

Distance from Prospect, TAS to Williamstown, SA

Distance

1,247 km

Time

19 hours 32 mins

Gas Cost

$93 - $243

There are 1,045.68 km (649.76 miles) from Prospect to Williamstown in northwest direction and 1,247.24 km (775 miles) by car and ferry, following the 1 route.

Prospect and Williamstown are 19 hours 32 mins far apart, if you drive non-stop for 10 hours 32 mins and take a ferry for 9 hours .

This is the fastest route from Prospect, TAS to Williamstown, SA.

Please note the time difference between Prospect, TAS and Williamstown, SA is 30 minutes. The current time in Prospect is 9:34 pm and the current time in Williamstown is 9:04 pm.

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Lowest Price Rental Cars in Prospect, TAS

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Prospect »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 134.62 liters of fuel to cover the route between Prospect, TAS and Williamstown, SA.

The estimated cost of fuel to go from Prospect to Williamstown is $201.94.

During the route, an average car will release 3,220.20 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 Prospect, TAS and Williamstown, SA

If you want to meet halfway between Prospect, TAS 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 -37.560568 and 143.847483, or 37º 33' 38.0448" S, 143º 50' 50.9388" E. This location is 387.28 miles away from Prospect, TAS and Williamstown, SA and it would take approximately 9 hours 46 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Prospect, TAS and Williamstown, SA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	649.76 mi	1,045.68 km	564.63 nautical mi
Driving distance	775 mi	1,246.52 km	673.07 nautical mi

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