Distance between cities › Australia › Western Australia › Onslow, WA › Distance from Onslow to Mt Barker Book Hotels

Distance from Onslow, WA to Mt Barker, SA

Distance

3,957 km

Time

1 day 22 hours

Gas Cost

$297 - $772

There are 2,751.41 km (1,709.65 miles) from Onslow to Mt Barker in southeast direction and 3,957.38 km (2,459 miles) by car, following the 1 route.

Onslow and Mt Barker are 1 day 22 hours far apart, if you drive non-stop .

This is the fastest route from Onslow, WA to Mt Barker, SA.

Please note the time difference between Onslow, WA and Mt Barker, SA is 2 hours and 30 minutes. The current time in Onslow is 10:09 am and the current time in Mt Barker is 12:39 pm.

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Lowest Price Rental Cars in Onslow, WA

Planning on renting a car to go from Onslow, WA to Mt Barker, SA? Here there are some offers to rent a car in Onslow, WA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Onslow »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 427.37 liters of fuel to cover the route between Onslow, WA and Mt Barker, SA.

The estimated cost of fuel to go from Onslow to Mt Barker is $641.05.

During the route, an average car will release 10,222.66 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 Onslow, WA and Mt Barker, SA

If you want to meet halfway between Onslow, WA and Mt Barker, SA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -32.032970 and 122.635368, or 32º 1' 58.692" S, 122º 38' 7.3248" E. This location is 1,229.42 miles away from Onslow, WA and Mt Barker, SA and it would take approximately 23 hours 5 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Onslow, WA and Mt Barker, SA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	1,709.65 mi	2,751.41 km	1,485.65 nautical mi
Driving distance	2,459 mi	3,957.12 km	2,136.68 nautical mi

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