Distance between cities › Australia › South Australia › Williamstown, SA › Distance from Williamstown to Coolamon Book Hotels

Distance from Williamstown, SA to Coolamon, NSW

Distance

871 km

Time

10 hours 45 mins

Gas Cost

$65 - $170

Helpful Inaccurate

There are 759.51 km (471.94 miles) from Williamstown to Coolamon in east direction and 870.66 km (541 miles) by car, following the A20 route.

Williamstown and Coolamon are 10 hours 45 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, SA to Coolamon, NSW.

Please note the time difference between Williamstown, SA and Coolamon, NSW is 30 minutes. The current time in Williamstown is 2:33 pm and the current time in Coolamon is 3:03 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Williamstown, SA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 94.03 liters of fuel to cover the route between Williamstown, SA and Coolamon, NSW.

The estimated cost of fuel to go from Williamstown to Coolamon is $141.04.

During the route, an average car will release 2,249.08 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 Williamstown, SA and Coolamon, NSW

If you want to meet halfway between Williamstown, SA and Coolamon, NSW or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -34.518618 and 142.870459, or 34º 31' 7.0248" S, 142º 52' 13.6524" E. This location is 270.48 miles away from Williamstown, SA and Coolamon, NSW and it would take approximately 5 hours 22 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Williamstown, SA and Coolamon, NSW in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	471.94 mi	759.51 km	410.10 nautical mi
Driving distance	541 mi	870.60 km	470.09 nautical mi

Road Trip Tips