Retirement Planner | RetirePeace
Calculator Guide
Calculators
Home FIRE Calculator Investment Growth Retirement Planner Advanced SWPFeatured 2-Bucket Strategy
Read
Learning Centre Frequently asked questions Calculator Guide
Accumulation · Projection

Retirement Calculator

Enter your details to project your retirement corpus, the income it can provide, and how long it lasts. Every figure below is a direct calculation from your inputs.

See how this calculation works

Your plan
i
{{ f.suffix }}
{{ f.error }}
Savings & income
i
{{ f.desc }}
{{ f.prefix }} {{ f.suffix }} {{ f.abbr }}
{{ f.error }}
Assumptions
i
{{ f.suffix }}
{{ f.error }}
i
{{ f.suffix }}
{{ f.error }}
Your results
1Build your corpusBefore retirement
Projected Retirement Corpus
{{ res.corpusFull }}
{{ res.corpus }} · at retirement age {{ res.retAge }}
{{ ft.label }}
{{ ft.value }}
{{ ft.sub }}
2Retirement incomeDuring retirement
Supported Monthly Income (today's value)
{{ res.supportedIncome }}
Desired Monthly Income (today's value)
{{ res.desiredIncome }}
{{ res.gapLabel }}
{{ res.gapValue }}
{{ res.gapNote }}
{{ ft.label }}
{{ ft.value }}
{{ ft.sub }}
i
Need a more detailed retirement plan?

These results provide a high-level retirement estimate based on your current assumptions. For year-by-year retirement income planning, changing spending needs, one-time withdrawals and advanced retirement scenarios, try our Systematic Withdrawal Plan (SWP) or 2-Bucket Strategy calculators.

These calculations are estimates based on your assumptions and are provided for educational purposes only. Actual investment returns, inflation and future market conditions may differ. Consider consulting a qualified financial adviser before making important financial decisions.
Projected corpus over time
Corpus balance Retirement age
{{ plannerChart }}

Year-by-year projection

See how your projected retirement corpus changes over time. Contributions run until retirement; withdrawals begin at it.

{{ planTableCount }}
Year Age Opening corpus Contribution Withdrawal Return Closing corpus {{ r.year }}
Retires
 {{ r.age }} {{ r.opening }} {{ r.contribution }} {{ r.withdrawal }} {{ r.growth }} {{ r.closing }}

How these numbers are calculated

During the accumulation phase, your current savings and monthly investments compound at your expected annual return. At retirement, the calculation withdraws your desired monthly income (grown by inflation to keep its purchasing power) each year, while the remaining balance continues to earn the post-retirement return. The projection runs year by year until the corpus reaches zero or life expectancy is reached. All values are direct calculations from the inputs above.

Understanding the Retirement Calculator

This calculator covers both halves of a retirement plan in one projection: it builds a corpus from your current savings and monthly investing, then draws a target income from it and reports how long that income lasts.

It is the right starting point if you want a single view of whether your current saving rate is on course to fund the retirement income you have in mind.

What each input means

Current age, retirement age and life expectancy
These set the two phases: the years you contribute, and the years you draw down. The projection runs from your current age to the life expectancy you enter.
Current savings and monthly investment
Your starting balance and the amount added each month during the accumulation phase.
Expected return before retirement
The growth rate applied while you are still investing.
Expected return after retirement
A separate rate for the drawdown years, so you can model a more conservative portfolio once you stop working.
Desired monthly income
What you want to receive each month in retirement, in today’s money. It is grown by inflation to the year you retire, and then rises with inflation each year so the income keeps its purchasing power.
Expected inflation
Used both to grow your target income to retirement and to raise it each year afterwards.

How to read your result

Projected retirement corpus
The balance at your retirement age, built from your current savings, your contributions and growth.
Corpus exhaustion age
The age at which the projected balance reaches zero. If it is beyond your life expectancy, the plan funds the income for the whole period you entered.
Remaining at life expectancy
What would be left at the end of the projection, useful as a margin of safety, not a target in itself.
Total contributions and investment growth
How much of the corpus you paid in versus how much came from compounding.

The maths behind it

During the accumulation years the balance grows at your pre-retirement return and contributions are added each year, with new contributions earning a partial year of growth rather than a full one. At retirement the target income is your desired monthly income grown by inflation over the years to retirement. Each drawdown year the balance first grows at the post-retirement return, and the withdrawal is then taken from the grown balance, so it is effectively treated as occurring at the end of the year. The withdrawal rises by inflation annually until the balance is exhausted or the projection ends. Note that the SWP and 2-Bucket calculators use the opposite convention: they take the withdrawal first and apply the return only to what remains, which is the more conservative reading and produces lower balances on the same inputs. Both are standard conventions; the difference is explained in full in How RetirePeace calculates.

Assumptions and limitations

  • Every projection applies a single fixed return to each year. Real markets rise and fall, so a portfolio that averages the same return can still finish somewhere quite different, especially once withdrawals begin and a poor run arrives early.
  • Tax, platform fees, fund charges and transaction costs are not modelled. A real-world net outcome will be lower than a gross projection.
  • Returns and inflation are assumptions you choose, not forecasts. The output is only ever as reliable as the numbers you put in.
  • Figures are shown in the currency you select. No exchange-rate movement is modelled.
  • This is general educational information to help you understand your own numbers, not personalised financial advice.

Related calculators

Learn the concepts behind this calculator

The full Retirement Learning Centre covers withdrawals, inflation, FIRE and drawdown strategy, and how RetirePeace calculates documents every modelling convention used on this page.

More questions about assumptions, withdrawals and how these projections work are answered in the retirement planning FAQ.

The calculations provided by RetirePeace are intended for educational and planning purposes only. Investment returns, inflation, and future market conditions are uncertain. Actual outcomes may differ. This is not financial, investment, tax, or legal advice.