I work in this industry and to be honest, the majority of people don't really understand pensions. How much they need to save, what their expected outgoings will be in retirement, what the state will provide and when that is and what they need to be paying to achieve the goals they have.
It is a very complicated subject matter and legislation changes all the time.
I would say that the key objectives for all should be:
- Have all debt paid off before retirement
- Find out what the State is likely to pay you and when (can be done online)
You can then focus on the other things.
For example if the State Pension will pay you £155 a week at 67 (for some it will be more, for some less)
Then you will be getting £8060 per year or £671 per month.
If you have worked out that you need around £1300 a month then you have a shortfall of £629.
It would be reasonable to assume you will need around £10,000-£12000 of savings for every £50 per month you require so a pension pot of around £125,000-£150,000 would be the objective. This isn't even touching the sides from the detail required but it gives an idea.
This assumes you are happy to retire at 67!
If you want to retire at 60 then you would need to also find the £8060 that you won't get until 67 so will probably need another £60,000 to bridge the gap.
As I have said though it is complicated and there are lots of options at retirement on how to take pensions.