Your freedom rate is the percentage of your income that goes into investments (your "freedom fund"). Take your annual investments and divide by your annual [...]

The 25× rule comes from the 4% "safe withdrawal rate" (SWR). If you feel you need £40k/year, £1M invested (25 × £40k) lets you withdraw [...]

Only low-fee stock market investments (ISAs, SIPPs, 401ks, KiwiSaver). Exclude cash, property, or DB pensions as those will go in the retirement income section.  Tip: DB pensions? [...]

The calculator assumes you never improve your situation—but you can! Boost your freedom rate, reduce spending, or add side hustle income. Retirement isn’t binary and [...]

Subtract your projected state pension (e.g., £10k/year) from your annual spending before multiplying by 25. Example: Need £30k/year but get £10k from the state? Target = [...]

Just as the 4% rule will give you a 25x multiplier, a 5% withdrawal rate will give you a smaller target (20x spending vs. 25x), [...]

The calculator uses today’s spending, but adjust if you’ll downsize, travel, or have paid-off debts. Example: Mortgage-free? Subtract those costs first. Tip: Revisit this annually — [...]

The calculator uses real growth (after inflation). This means all numbers stay in today's pounds/dollars. Default settings: 10% growth - 2.4% inflation - 0.15% fees = [...]

Money to cover the gap between when you retire and when pensions kick in. Example: Retire at 55 with state pension at 68? You'll need [...]

Savings get spent (on cars/holidays, etc.). Freedom money gets invested to buy your time back. Your freedom rate directly determines how soon you can retire [...]