Distance between cities › Australia › South Australia › O B Flat, SA › Distance from O B Flat to St Clair Book Hotels

Distance from O B Flat, SA to St Clair, VIC

Distance

560 km

Time

7 hours 24 mins

Gas Cost

$42 - $109

There are 431.60 km (268.18 miles) from O B Flat to St Clair in east direction and 560.05 km (348 miles) by car, following the M8 route.

O B Flat and St Clair are 7 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from O B Flat, SA to St Clair, VIC.

Please note the time difference between O B Flat, SA and St Clair, VIC is 30 minutes. The current time in O B Flat is 4:51 am and the current time in St Clair is 5:21 am.

Any questions or tips to share?

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Lowest Price Rental Cars in O B Flat, SA

Planning on renting a car to go from O B Flat, SA to St Clair, VIC? Here there are some offers to rent a car in O B Flat, SA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in O B Flat »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 60.46 liters of fuel to cover the route between O B Flat, SA and St Clair, VIC.

The estimated cost of fuel to go from O B Flat to St Clair is $90.68.

During the route, an average car will release 1,446.12 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 O B Flat, SA and St Clair, VIC

If you want to meet halfway between O B Flat, SA and St Clair, VIC or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -37.685909 and 143.563228, or 37º 41' 9.2724" S, 143º 33' 47.6208" E. This location is 173.92 miles away from O B Flat, SA and St Clair, VIC and it would take approximately 3 hours 42 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between O B Flat, SA and St Clair, VIC in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	268.18 mi	431.60 km	233.05 nautical mi
Driving distance	348 mi	559.78 km	302.26 nautical mi

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