Trains, trams and buses will be free in Victoria from March 31 until the end of April, a temporary measure announced to help ease cost of living pain in the state.

"It will take pressure off the pump and help you save," Premier Jacinta Allan said.

"This won't solve every problem but it's an immediate step to help Victorians right now while we keep working on new solutions to make Victoria more affordable."

Myki gates will be open on all metropolitan and V/Line public transport from Tuesday.

Passengers won't need to touch on or off to ride public transport during this time.

Anyone who accidentally taps on will not be charged.

The state government had been facing growing calls to offer subsidised or free trips to redirect to the flow of fuel to farmers and regional communities.

Victorian Farmers Federation (VFF) president Brett Hosking previously urged the state government to make public transport free to encourage workers in Melbourne to stay off the roads and save the much-needed fuel for farmers.

"We don't have a public transport network, we're required to drive long distances, and we need liquid fuel to make that happen," Hosking said.

ACT Senator David Pocock joined the chorus and demanded free nationwide public transport to ease the fuel shortage.

The price of unleaded in Australia is nudging $2.60 per litre in some areas, while the average price of diesel is now well over $3 per litre.

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