The Pensions and Lifestime Savings Association (PLSA) has suggested that we all need easily understandable and simple pension targets such as 'minimum' (£10,000 pa pension to cover basic living costs), 'modest' (say £15,000 - £25,000 pa) and 'comfortable' (over £25,000 pa) i.e. target your retirement standard of living to be minimum, modest and comfortable.
We have laboured the point many times and offered both articles and calculators to do the same:
Read and Watch: How Much to Save into a Pension : Articles : Financial Advice How much to save into a pension
Calculate: Various pension and pension shortfall calculators