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

Distance from Lock, SA to Karratha, WA

Distance

3,245 km

Time

1 day 16 hours

Gas Cost

$243 - $633

There are 2,345.91 km (1,457.68 miles) from Lock to Karratha in northwest direction and 3,244.44 km (2,016 miles) by car, following the A1 route.

Lock and Karratha are 1 day 16 hours far apart, if you drive non-stop .

This is the fastest route from Lock, SA to Karratha, WA.

Please note the time difference between Lock, SA and Karratha, WA is 2 hours and 30 minutes. The current time in Lock is 2:38 pm and the current time in Karratha is 12:08 pm.

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Lowest Price Rental Cars in Lock, SA

Planning on renting a car to go from Lock, SA to Karratha, WA? 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 350.42 liters of fuel to cover the route between Lock, SA and Karratha, WA.

The estimated cost of fuel to go from Lock to Karratha is $525.63.

During the route, an average car will release 8,381.98 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 Karratha, WA

If you want to meet halfway between Lock, SA and Karratha, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -31.705762 and 121.686757, or 31º 42' 20.7432" S, 121º 41' 12.3252" E. This location is 1,008.05 miles away from Lock, SA and Karratha, WA and it would take approximately 20 hours to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Lock, SA and Karratha, WA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	1,457.68 mi	2,345.91 km	1,266.69 nautical mi
Driving distance	2,016 mi	3,244.60 km	1,751.95 nautical mi

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