Retirement Calculator
Project your nest egg, or work out the corpus and monthly saving you need to retire on the income you want — adjusted for inflation
Quick answer
Retirement Calculator
B = current balance, C = monthly contribution, i = monthly return, n = months to retirement. The 'needed' side discounts an inflation-adjusted retirement income over Y years at your real (after-inflation) post-retirement return.
Formula
Corpus = B(1+i)^n + C × [((1+i)^n − 1) / i] | Needed = Annual income × [1 − (1+r_real)^−Y] / r_real
👤 Your Details
📊 Projection
📈 Nest Egg Over Time
Year-by-year breakdown
| Age | Total Contributed | Growth | Nest Egg |
|---|---|---|---|
| 31 | $26,000 | $1,625 | $27,625 |
| 32 | $32,000 | $3,784 | $35,784 |
| 33 | $38,000 | $6,514 | $44,514 |
| 34 | $44,000 | $9,855 | $53,855 |
| 35 | $50,000 | $13,850 | $63,850 |
| 36 | $56,000 | $18,545 | $74,545 |
| 37 | $62,000 | $23,988 | $85,988 |
| 38 | $68,000 | $30,233 | $98,233 |
| 39 | $74,000 | $37,334 | $111,334 |
| 40 | $80,000 | $45,352 | $125,352 |
| 41 | $86,000 | $54,352 | $140,352 |
| 42 | $92,000 | $64,402 | $156,402 |
| 43 | $98,000 | $75,575 | $173,575 |
| 44 | $104,000 | $87,951 | $191,951 |
| 45 | $110,000 | $101,613 | $211,613 |
| 46 | $116,000 | $116,651 | $232,651 |
| 47 | $122,000 | $133,161 | $255,161 |
| 48 | $128,000 | $151,248 | $279,248 |
| 49 | $134,000 | $171,020 | $305,020 |
| 50 | $140,000 | $192,597 | $332,597 |
| 51 | $146,000 | $216,104 | $362,104 |
| 52 | $152,000 | $241,676 | $393,676 |
| 53 | $158,000 | $269,459 | $427,459 |
| 54 | $164,000 | $299,606 | $463,606 |
| 55 | $170,000 | $332,283 | $502,283 |
| 56 | $176,000 | $367,668 | $543,668 |
| 57 | $182,000 | $405,950 | $587,950 |
| 58 | $188,000 | $447,332 | $635,332 |
| 59 | $194,000 | $492,030 | $686,030 |
| 60 | $200,000 | $540,278 | $740,278 |
| 61 | $206,000 | $592,322 | $798,322 |
| 62 | $212,000 | $648,430 | $860,430 |
| 63 | $218,000 | $708,885 | $926,885 |
| 64 | $224,000 | $773,992 | $997,992 |
| 65 | $230,000 | $844,077 | $1,074,077 |
Worked example
Suppose you are 30, want to retire at 65, already have $20,000 saved and add $500 a month, expecting a 7% return before retirement. Over 35 years your $20,000 grows on its own to around $213,000, while your monthly contributions — each compounding from the month you invest it — add far more, for a nest egg near $930,000. You only contributed about $230,000 of that; the rest is growth. After 3% inflation that pot is worth roughly $330,000 in today's money, enough to draw close to $1,700 a month for 25 years. Switch to "How much do I need?" and the tool reverses the maths: to retire on $4,000 a month in today's money you would need a much larger corpus, and it tells you the monthly saving required to reach it.
Why inflation and two return rates matter
A retirement number that ignores inflation is almost always too optimistic: $1,000,000 sounds like a lot, but in 35 years it may buy what a third of that does today. This calculator therefore shows the inflation-adjusted value of your pot and works out sustainable income in today's money. It also lets you set a different, usually lower, return for the retirement years, because most people shift toward safer assets once they stop earning. The single biggest levers are how early you start and your contribution rate — money invested in your twenties compounds for decades, which is why even a small monthly amount started early often beats a much larger amount started late. Treat the output as a planning projection, not a guarantee; real returns vary year to year.
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🏖️Formula
Corpus = B(1+i)^n + C × [((1+i)^n − 1) / i] | Needed = Annual income × [1 − (1+r_real)^−Y] / r_real💡How it works
B = current balance, C = monthly contribution, i = monthly return, n = months to retirement. The 'needed' side discounts an inflation-adjusted retirement income over Y years at your real (after-inflation) post-retirement return.
ℹ️ What is Retirement Calculator?
A retirement calculator projects how much your savings will grow by retirement age and whether your accumulated wealth will sustain your desired lifestyle throughout retirement. It is one of the most important financial planning tools for long-term wealth management.
📐 Formula
✏️ Worked Example
- 1Years to retirement: 65 − 30 = 35 years
- 2Growth of current $50,000: $50,000 × (1.07)³⁵ = $532,000
- 3Growth of annual $6,000 contributions: $6,000 × [(1.07)³⁵−1]/0.07 = $851,000
- 4Total at retirement: $532,000 + $851,000 = $1,383,000
- 5Safe annual withdrawal (4% rule): $1,383,000 × 0.04 = $55,320/year
💡 How to Interpret Results
- ▸The 4% Rule: withdraw 4% of your portfolio in year 1, adjust for inflation each year — historically sustainable for 30 years.
- ▸A $1M portfolio sustains ~$40,000/year. To spend $80,000/year, you need ~$2M.
- ▸Social Security adds to income — factor it in to determine the "gap" your savings must cover.
- ▸Inflation erodes purchasing power: $55,000/year today needs ~$100,000/year in 25 years at 2.5% inflation.
- ▸Start early: $200/month from age 25 to 65 at 7% = $525,000. Starting at 35 = only $243,000.
❓ Frequently Asked Questions
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