Distance between cities › Australia › South Australia › Koolunga, SA › Distance from Koolunga to Underwood Book Hotels

Distance from Koolunga, SA to Underwood, TAS

Distance

1,446 km

Time

21 hours 56 mins

Gas Cost

$108 - $282

There are 1,163.69 km (723.09 miles) from Koolunga to Underwood in southeast direction and 1,445.19 km (898 miles) by car and ferry, following the 1 route.

Koolunga and Underwood are 21 hours 56 mins far apart, if you drive non-stop for 12 hours 56 mins and take a ferry for 9 hours .

This is the fastest route from Koolunga, SA to Underwood, TAS.

Please note the time difference between Koolunga, SA and Underwood, TAS is 30 minutes. The current time in Koolunga is 9:55 am and the current time in Underwood is 10:25 am.

Any questions or tips to share?

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Lowest Price Rental Cars in Koolunga, SA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Koolunga »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 156.12 liters of fuel to cover the route between Koolunga, SA and Underwood, TAS.

The estimated cost of fuel to go from Koolunga to Underwood is $234.18.

During the route, an average car will release 3,734.46 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 Koolunga, SA and Underwood, TAS

If you want to meet halfway between Koolunga, SA and Underwood, TAS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -37.330989 and 143.086515, or 37º 19' 51.5604" S, 143º 5' 11.454" E. This location is 449.12 miles away from Koolunga, SA and Underwood, TAS and it would take approximately 10 hours 58 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Koolunga, SA and Underwood, TAS in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	723.09 mi	1,163.69 km	628.34 nautical mi
Driving distance	898 mi	1,445.58 km	780.55 nautical mi

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