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

Distance from Lock, SA to Grass Flat, VIC

Distance

1,003 km

Time

12 hours 7 mins

Gas Cost

$75 - $196

There are 652.76 km (405.61 miles) from Lock to Grass Flat in southeast direction and 1,002.62 km (623 miles) by car, following the A1 route.

Lock and Grass Flat are 12 hours 7 mins far apart, if you drive non-stop .

This is the fastest route from Lock, SA to Grass Flat, VIC.

Please note the time difference between Lock, SA and Grass Flat, VIC is 30 minutes. The current time in Lock is 9:59 am and the current time in Grass Flat is 10:29 am.

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Lowest Price Rental Cars in Lock, SA

Planning on renting a car to go from Lock, SA to Grass Flat, VIC? 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 108.29 liters of fuel to cover the route between Lock, SA and Grass Flat, VIC.

The estimated cost of fuel to go from Lock to Grass Flat is $162.43.

During the route, an average car will release 2,590.25 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 Grass Flat, VIC

If you want to meet halfway between Lock, SA and Grass Flat, VIC or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -34.318581 and 138.26104, or 34º 19' 6.8916" S, 138º 15' 39.744" E. This location is 311.52 miles away from Lock, SA and Grass Flat, VIC and it would take approximately 6 hours 3 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Lock, SA and Grass Flat, VIC in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	405.61 mi	652.76 km	352.46 nautical mi
Driving distance	623 mi	1,002.67 km	541.40 nautical mi

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