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

Distance from Lock, SA to Coolamon, NSW

Distance

1,350 km

Time

16 hours 12 mins

Gas Cost

$101 - $263

There are 1,061.29 km (659.46 miles) from Lock to Coolamon in east direction and 1,350.24 km (839 miles) by car, following the A20 route.

Lock and Coolamon are 16 hours 12 mins far apart, if you drive non-stop .

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

Please note the time difference between Lock, SA and Coolamon, NSW is 30 minutes. The current time in Lock is 6:35 pm and the current time in Coolamon is 7:05 pm.

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Lowest Price Rental Cars in Lock, SA

Planning on renting a car to go from Lock, SA to Coolamon, 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 145.79 liters of fuel to cover the route between Lock, SA and Coolamon, NSW.

The estimated cost of fuel to go from Lock to Coolamon is $218.69.

During the route, an average car will release 3,487.38 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 6, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Lock, SA and Coolamon, NSW

If you want to meet halfway between Lock, 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 -34.194713 and 140.814307, or 34º 11' 40.9668" S, 140º 48' 51.5052" E. This location is 419.41 miles away from Lock, SA and Coolamon, NSW and it would take approximately 8 hours 6 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	659.46 mi	1,061.29 km	573.05 nautical mi
Driving distance	839 mi	1,349.94 km	728.91 nautical mi

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