See how many years until you can retire based on your savings rate
Your savings rate — the % of income you save — is the single biggest predictor of when you can retire. Income matters less than this number.
10% savings rate = 51 years to retire. 25% = 32 years. 50% = 17 years. 75% = 7 years. Math by Mr. Money Mustache, confirmed by every FIRE blogger since.
Time to financial independence depends on the gap between what you earn and what you spend, not on either number alone. Someone saving half of a modest income reaches independence far sooner than someone saving five percent of a large one, because a lower spend means both a faster accumulation and a smaller target.
Raising income and cutting spending both move the savings rate, but cutting spending moves it twice — it adds to what you save and subtracts from what you will need. That is why it dominates the arithmetic even when a raise feels like the bigger event.
The usual savings-rate table assumes a constant real return and a constant spending level, and stops the moment your portfolio can cover annual spending at a safe withdrawal rate. Real life includes job changes, market sequence, tax, and a spending level that rarely stays flat — treat the figure as a direction rather than a date.
Next, read How Much Should I Save Each Month? and Financial Gifts.
Anything above the roughly 10% most default advice suggests will shorten the timeline materially. The relationship is not linear: moving from 10% to 20% cuts the time to independence far more than moving from 50% to 60%, because the early increases affect both the saving and the target.
Because it raises what you save and lowers the amount you will eventually need. Earning more only does the first. That asymmetry is why the savings rate, rather than the salary, is the number that predicts the timeline.
It is a model, not a forecast. It assumes constant real returns and flat spending, and ignores job changes, tax and the order in which market returns arrive. Use it to compare scenarios against each other rather than to pick a retirement date.
Tax rules, limits and pay data change. Check the current figures with the primary source before acting on them.