Adrian Bayley, one of Australia's most notorious predators, has had his minimum jail term extended by 10 years after being sentenced today for three more rape convictions.

Bayley, 43, is already serving a life sentence in prison with a non-parole period of 35 years for the rape and murder of Jill Meagher, 29, an ABC employee, in September 2013.

Today he was sentenced to 18 years in jail for the rapes of three other women, including a Dutch tourist in 2012 and two prostitutes.

He will now be eligible for parole in 2058, when he is 86 years of age.

Judge Sue Pullen described Bayley's behaviour as serious and disturbing.

She said each of his victims was vulnerable in their own way.

"Each in their own way was easy prey... and you were an experienced hunter," she said.

"Once each of these victims were in your sights their fate was sealed."

Judge Pullen said Bayley had shown no remorse and there was little to suggest he could ever be rehabilitated.

"You are sentenced as both a serious sexual offender and a serious violent offender," she said.

Bayley likely to die in prison

She said the sentence must reflect the magnitude of Bayley's offending.

Judge Pullen sentenced him to a total effective sentence of 18 years in jail and set a new non-parole period of 43 years.

Previously, he was eligible for parole in June 2048, so with the new 43-year non-parole period effective from today, Bayley will not be eligible for parole until May 2058.

The judge said the victims had suffered considerably as a result of Bayley's offending and he was likely to die in jail.

"I was also conscious that the sentence I have imposed, will most likely, ensure you have likely forfeited your rights to hope [for], or expectation of, eventual release from prison," " Judge Pullen said.

"You have repeatedly over many years violated the basic rights of women in the community and with similar sexual offending to that before me.

"Your repeated violent offending and gravity of that offending provides little to offer the faintest glimmer of hope.

"Even if there were any considerations of rehabilitation, they must in your case be subordinated to the gravity of your offending."

Bayley sat at the back of the court, dressed all in black.

He did not react to the sentence.

Bayley is currently held in "protection" in the Metropolitan Assessment Prison and will remain there for the time being because of the perceived threat to him from other prisoners.

He routinely gets between one and three hours a day outside his cell and his visitors are restricted because of his status as a sex offender.

Bayley's long history of violence

In victim impact statements read at a pre-sentence hearing yesterday, the women said they continued to suffer from the assaults.

One said she suffered depression, anxiety and still had difficulty trusting people.

Another said she drank and self-harmed and said she would vomit any time she heard his name.

The third said she still had not told her parents about her ordeal.

Bayley had a long history of violent attacks against women spanning more than 20 years.

He raped or attempted to rape three teenagers in separate attacks when he was 19 years old.

Bayley served his first stint behind bars in 1991 when he was sentenced to five years for sexual assault.

Bayley was already serving a life term for the murder and rape of Jill Meagher. ( Facebook: Help Us Find Jill Meagher )

He served only 22 months of that sentence and later admitted to faking his way through a sexual offenders' program to gain early release.

In September 2000, he began what a judge described as a horrendous crime wave, raping six St Kilda prostitutes in a six-month period.

He was jailed for a minimum of eight years.

When he murdered Ms Meagher he was on parole, having served his sentence for the St Kilda rapes.

Bayley snatched Ms Meagher off Brunswick's Sydney Road as she walked home from a night out with friends on September 21, 2013.

Haunting CCTV images released by courts showed her attempt to make the short walk home from the Etiquette bar in Brunswick.

Ms Meagher was accosted by Bayley just eight minutes after leaving the bar, outside a dress shop.

At the trial, Bayley admitted to her murder.

"They should have the death penalty for people like me," he told the court.

"How many chances does a person need? They should never have let me out."