Distance between cities › Australia › South Australia › Lock, SA › Distance from Lock to Helensburgh Book Hotels

Distance from Lock, SA to Helensburgh, NSW

Distance

1,812 km

Time

21 hours 41 mins

Gas Cost

$136 - $353

There are 1,407.76 km (874.74 miles) from Lock to Helensburgh in east direction and 1,812.12 km (1,126 miles) by car, following the A20 route.

Lock and Helensburgh are 21 hours 41 mins far apart, if you drive non-stop .

This is the fastest route from Lock, SA to Helensburgh, NSW.

Please note the time difference between Lock, SA and Helensburgh, NSW is 30 minutes. The current time in Lock is 9:41 pm and the current time in Helensburgh is 10:11 pm.

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Lowest Price Rental Cars in Lock, SA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Lock »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 195.74 liters of fuel to cover the route between Lock, SA and Helensburgh, NSW.

The estimated cost of fuel to go from Lock to Helensburgh is $293.61.

During the route, an average car will release 4,682.12 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 Lock, SA and Helensburgh, NSW

If you want to meet halfway between Lock, SA and Helensburgh, NSW or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -34.518978 and 142.874978, or 34º 31' 8.3208" S, 142º 52' 29.9208" E. This location is 563.09 miles away from Lock, SA and Helensburgh, NSW and it would take approximately 10 hours 50 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Lock, SA and Helensburgh, NSW in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	874.74 mi	1,407.76 km	760.13 nautical mi
Driving distance	1,126 mi	1,812.41 km	978.63 nautical mi

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