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

Distance from Lock, SA to Merredin, WA

Distance

1,937 km

Time

22 hours 16 mins

Gas Cost

$145 - $378

There are 1,652.90 km (1,027.07 miles) from Lock to Merredin in west direction and 1,937.65 km (1,204 miles) by car, following the A1 route.

Lock and Merredin are 22 hours 16 mins far apart, if you drive non-stop .

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

Please note the time difference between Lock, SA and Merredin, WA is 2 hours and 30 minutes. The current time in Lock is 5:18 pm and the current time in Merredin is 2:48 pm.

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Lowest Price Rental Cars in Lock, SA

Planning on renting a car to go from Lock, SA to Merredin, 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 209.21 liters of fuel to cover the route between Lock, SA and Merredin, WA.

The estimated cost of fuel to go from Lock to Merredin is $313.82.

During the route, an average car will release 5,004.34 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 Merredin, WA

If you want to meet halfway between Lock, SA and Merredin, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -31.907645 and 126.852559, or 31º 54' 27.522" S, 126º 51' 9.2124" E. This location is 601.84 miles away from Lock, SA and Merredin, WA and it would take approximately 11 hours 8 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	1,027.07 mi	1,652.90 km	892.50 nautical mi
Driving distance	1,204 mi	1,937.15 km	1,045.98 nautical mi

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