State pension (me) and wife on ESA legacy benefit - entitlement question

I am 66 on the 13th December and at the moment I get carers allowance and I have already applied and got my state pension entitlement letter plus another letter to says my carers allowance will end at the same time though It says i still have the carers entitlement as my wife is on high rate care and mobility DLA.

At the moment my wife gets £183.40 per week ESA support group and also we have a reduction in council tax due to her disability.

We rent from the local council and get full housing benefit.

My state pension will work out at £221.10 per week.

So what i am trying to find out is how much ESA will my wife lose as non of the benefit calculators don't seem useful.

Yes I have just used a calculation on Entitledto putting down I am 66 now and its calculated my wife's ESA will be £157.35.

It has in that carer premium but no Disabilty Income Guarentee which she gets at the moment.

I have checked on entitledto inputting my age as 66 and the calculation it gives including carers premium and ESA pensioner premium but no disability income guarantee which she gets at the moment.

The calculation ESA(income-related)

Applicable amount £378.55
Less total assessed income £221.20
ESA(income-related) £157.35 which is what is says she will get along with rent paid and council tax reductions.

It does say also if she was on UC it would be £88.27 less.