Retirement Capital Calculator
Projected capital from current savings plus monthly contributions, and what it could pay out.
Results
Capital at the end
218,503.24
Total contributed
95,000.00
Interest earned
123,503.24
Annual withdrawal
8740.13
What this tool does
The last result applies the widely quoted four percent guideline for a first look at sustainable withdrawals; it is a rule of thumb from historical market data, not a promise. Everything here is in today's nominal terms, so compare it against inflation before reading the total as purchasing power.
Formula
FV = PV (1+r)^n + PMT × ((1+r)^n − 1) ÷ r
Variables
| Symbol | Meaning | Unit |
|---|---|---|
cu | Current savings | — |
mc | Monthly contribution | — |
ar | Annual interest rate | % |
n | Years | — |
FV | Capital at the end | — |
CO | Total contributed | — |
GR | Interest earned | — |
W4 | Annual withdrawal | — |
Worked example
- Current savings20,000
- Monthly contribution250
- Annual interest rate5 %
- Years25
- Capital at the end218,503.24
- Total contributed95,000.00
- Interest earned123,503.24
- Annual withdrawal8740.13
Limitations
- This is an informational calculator, not personalised financial advice. Rates, fees, taxes and contract conditions vary between institutions and countries.
- The result is an estimate based only on the values you type. Real situations often include factors this calculator does not know about.
- The tool works with whatever currency you use for the inputs; it does not convert between currencies.