Turn small deposits into a clear lifetime forecast. Adjust rates, goals, and retirement spending quickly. Download results, track progress, and stay ahead financially today.
| Scenario | Age Now | Retire | Start Balance | Monthly Save | Return (Pre/Post) | Inflation | Balance at Retirement |
|---|---|---|---|---|---|---|---|
| Baseline | 30 | 65 | $15,000 | $400 | 6.5% / 4.5% | 2.5% | $650,000 – $900,000 |
| Higher saving | 35 | 65 | $25,000 | $700 | 6.0% / 4.0% | 2.5% | $900,000 – $1,250,000 |
| Lower return | 30 | 65 | $15,000 | $400 | 5.0% / 3.5% | 3.0% | $520,000 – $740,000 |
This calculator projects savings using monthly compounding and deposits. Saving 400 monthly for 35 years equals 168,000 in contributions before growth. If contributions rise 2 percent each year, total deposits can exceed 230,000 because later deposits are larger. The projection table reports annual net flow and end balance so you can see when growth outpaces deposits.
Returns are entered for accumulation and retirement, then reduced by annual fees. A 0.50 percent fee turns 6.50 percent gross return into 6.00 percent net. Over decades, a one point return shift can move outcomes by hundreds of thousands. Use separate pre and post rates to reflect a more conservative retirement portfolio. When unsure, test ranges and favor caution.
Nominal balances can be misleading, so results also show today money values. The model divides nominal amounts by (1 + inflation) to the power of years. At 2.5 percent inflation, prices roughly double in about 28 years. An 800,000 nominal balance may feel closer to 400,000 today. This view helps align goals with real spending power.
Retirement withdrawals are spending minus other income, both inflated to the retirement start. If you plan 3,000 monthly spending and expect 1,200 income, the initial gap is 1,800. That gap rises with inflation each month, and the longevity check flags potential shortfalls. The summary also shows an estimated sustainable monthly income using a 4 percent rule snapshot. Treat it as guidance, not a promise.
After calculating, download CSV or PDF to archive assumptions and compare scenarios. Try lowering returns by 1 percent, raising inflation by 0.5 percent, or increasing spending by 10 percent. The chart plots nominal and today money balances by age, highlighting when compounding accelerates and when withdrawals dominate. Use the yearly table to identify the age where your balance peaks, then monitor drawdown speed. Revisit inputs annually as income, fees, and goals change, with life events too.
Today money adjusts balances for inflation, showing purchasing power in current terms. It helps compare future balances against today’s costs, so your target reflects what you can actually buy, not just nominal currency.
Many investors take less risk after retiring. Using different pre and post retirement returns lets you model a growth-focused phase followed by a more conservative phase, producing a more realistic drawdown forecast.
It does not model tax brackets or account-specific rules. To approximate taxes, reduce the expected return rate or increase the fee field to reflect a conservative after-tax, after-expense net return.
Fees reduce the annual return you enter. The calculator subtracts the fee percentage from both pre and post retirement returns, then compounds monthly using the net rate, which better reflects long-term drag.
Run multiple scenarios. Set monthly contributions lower, or use a negative annual contribution change to simulate reductions. Download each scenario and compare balances at retirement to see the impact clearly.
It is a quick planning benchmark: 4% of the retirement balance, spread over 12 months. Markets vary, so use it alongside the longevity check and stress tests, then refine with professional advice.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.