Anthony Albanese will speak on the possibility of providing Australian peacekeepers to Ukraine.
Ukrainian President Volodymyr Zelenskyy, leaders of France, Germany, Italy, New Zealand and Canada will also join.
The phone hook-up follows a summit of European leaders on Ukraine peace efforts earlier in March.
Mr Albanese said peace could be achieved in Ukraine immediately if Russian President Vladimir Putin called off his country's invasion.
"In order to have a peacekeeping mission, you need to have peace. So we look forward to there being peace in Ukraine, but we don't have to think very hard about which side we're on in this conflict," he told reporters in Perth on Friday.
"This can end tomorrow. If Vladimir Putin ends this illegal and immoral invasion and goes back to his own borders, that's what we firmly believe should happen."
While Russia backed a US proposal for a ceasefire, Mr Putin said more clarity was needed for the terms of the agreement.
Mr Albanese said Australia was still in full support of Ukraine.
"I won't preempt what comes out of that meeting, but Australia has, of course, stood with Ukraine since the beginning of this process."
With AAP