Retirement planning can feel impossibly far off, but the math is the same compounding you already understand — just run over decades. A rough projection now tells you whether your current pace is on track, and that is worth knowing early enough to adjust.
TL;DR — Enter your age, savings, monthly contribution and expected return in the retirement calculator to project your nest egg and a rough monthly income.
How the nest egg builds
Your future balance comes from three things: what you have saved so far, what you add each month, and the return it earns along the way. Over 30 or 40 years, the return does an outsized share of the work — most of a long-term balance is growth, not contributions. That is compounding rewarding the time you give it.
Turning savings into income
A balance is only useful if it produces income. The 4% rule is a common guideline: withdraw about 4% of your savings in the first year, then adjust for inflation. On a $1,000,000 nest egg, that is roughly $40,000 a year, or about $3,300 a month. It is a planning starting point, not a promise — markets and lifespans vary — but it turns an abstract balance into a number you can picture living on.
Don’t forget the match and inflation
Two things people often miss: an employer match is free money, so include it in your monthly contribution; and inflation means a future balance buys less than the same amount today. Treat the projection as today’s-growth terms and aim a little higher than the headline figure suggests.
Check your pace
Plug in your real numbers in the retirement calculator. If the projection falls short, you have the most valuable thing in retirement saving: time to fix it. Small increases to your monthly contribution now compound into large differences later.