Finance

Retirement Return on Investment Calculator (40 Years)

Calculate return on investment as a percentage. This retirement version uses a 40-year planning term as its starting point.

The Return figure is the total gain or loss on the amount invested, expressed as a percentage of that amount, over the full 40-year term: a positive figure means the final value is above the amount invested, a negative figure means it is below it, and because it is a total rather than a yearly rate, the same percentage means a slower yearly pace when it is spread over a longer term.

Formula

Return equals final value minus invested amount, divided by invested amount, times 100.

How it works

A positive return means the final value is higher than the amount invested.

Worked example

Amount invested $10,000, final value $15,000, term 40 years. Using the page formula, return equals $15,000 minus $10,000, divided by $10,000, times 100, which is $5,000 divided by $10,000, times 100, which is 50.00 percent. That is the calculator's own result for these defaults.

Spreading that 50.00 percent total evenly over 40 years gives a simple average of 1.25 percent a year. That average is an illustration only, not the output of this page: it is not compounded and it is not an annualised return. It is shown so the same total can be judged fairly over different terms.

Who this term suits for a retirement saver: nobody as an ordinary retirement plan, because a 40-year horizon is a whole working lifetime, and its use is as a warning that a 50 percent total return earned over forty years is only 1.25 percent a year on a simple basis, well below what most retirement plans would need to beat inflation.

FAQs

What is a good ROI?
There is no single good figure. Compare returns over the same period and with the same risk before deciding.

Is this retirement calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Is 50 percent over 40 years actually a retirement return worth chasing?
On its own, no. It averages only 1.25 percent a year on a simple basis, so over a whole working lifetime it would likely fall behind inflation and leave a retirement pot short.

What does 40 years mean for retirement costs and buying power?
Prices, care costs, and housing costs can all rise several times over forty years, so a fixed $15,000 final value from a $10,000 investment will buy far less at the end than it would today.

What should a retirement saver check before trusting a 40-year ROI figure?
Check inflation, fees, taxes, and whether regular contributions are included, because none of those are in this simple calculation, and all of them decide whether a forty-year plan actually works.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.