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

Distance from Cornwall, TAS to Williamstown, SA

Distance

1,355 km

Time

20 hours 52 mins

Gas Cost

$102 - $264

There are 1,112.58 km (691.33 miles) from Cornwall to Williamstown in northwest direction and 1,355.07 km (842 miles) by car and ferry, following the 1 route.

Cornwall and Williamstown are 20 hours 52 mins far apart, if you drive non-stop for 11 hours 52 mins and take a ferry for 9 hours .

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

Please note the time difference between Cornwall, TAS and Williamstown, SA is 30 minutes. The current time in Cornwall is 7:11 pm and the current time in Williamstown is 6:41 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Cornwall, TAS to Williamstown, SA:

Lowest Price Rental Cars in Cornwall, TAS

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cornwall »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 146.34 liters of fuel to cover the route between Cornwall, TAS and Williamstown, SA.

The estimated cost of fuel to go from Cornwall to Williamstown is $219.52.

During the route, an average car will release 3,500.54 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 8, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, TAS and Williamstown, SA

If you want to meet halfway between Cornwall, 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 -37.98798 and 144.149559, or 37º 59' 16.728" S, 144º 8' 58.4124" E. This location is 420.99 miles away from Cornwall, TAS and Williamstown, SA and it would take approximately 10 hours 26 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	691.33 mi	1,112.58 km	600.75 nautical mi
Driving distance	842 mi	1,355.03 km	731.66 nautical mi

Road Trip Tips