Retirement calculator

Starting at 30 with R100,000 and saving R2,500 a month, rising with inflation each year, you could have about R2,395,326 in today's money at 65. That could pay about R11,559 a month to age 85.

It depends on what you plan to spend and for how long. On the calculator's starting assumptions of retiring at 65, living to 85, a 6% return after retirement and 4.5% inflation, spending R30,000 a month in today's money needs about R6.2 million in today's money at retirement. Tax, fees and changes in your spending are not included.

The FinWise retirement calculator projects your savings to retirement age, then takes off your monthly budget until your life expectancy. If the balance at the end is above zero, the savings last on those assumptions, and if it is below zero they run out first. It is a planning aid, not advice.

It subtracts inflation from the rate of return before compounding, so an 8% return with 4.5% inflation grows at 3.5% a year. That keeps the results close to today's money, with your contribution and retirement budget in effect rising with inflation.

It starts with retirement at 65, life expectancy of 85, an 8% return before retirement, a 6% return after retirement and 4.5% inflation, all of which you can change.

No. It models contributions, returns, withdrawals and inflation, and is not a full SARS tax model for retirement annuities or tax-free savings accounts. Contributions, growth and withdrawals are all shown without tax.