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

Distance from Northdown, TAS to Williamstown, SA

Distance

1,161 km

Time

18 hours 27 mins

Gas Cost

$87 - $226

There are 983.44 km (611.08 miles) from Northdown to Williamstown in northwest direction and 1,161.95 km (722 miles) by car and ferry, following the 1 route.

Northdown and Williamstown are 18 hours 27 mins far apart, if you drive non-stop for 9 hours 27 mins and take a ferry for 9 hours .

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

Please note the time difference between Northdown, TAS and Williamstown, SA is 30 minutes. The current time in Northdown is 5:10 pm and the current time in Williamstown is 4:40 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Northdown, TAS

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Northdown »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 125.41 liters of fuel to cover the route between Northdown, TAS and Williamstown, SA.

The estimated cost of fuel to go from Northdown to Williamstown is $188.12.

During the route, an average car will release 2,999.91 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 9, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Northdown, TAS and Williamstown, SA

If you want to meet halfway between Northdown, 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 -37.434207 and 143.449629, or 37º 26' 3.1452" S, 143º 26' 58.6644" E. This location is 360.78 miles away from Northdown, TAS and Williamstown, SA and it would take approximately 9 hours 13 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	611.08 mi	983.44 km	531.01 nautical mi
Driving distance	722 mi	1,161.24 km	627.02 nautical mi

Road Trip Tips