How much do you need to retire?
A retirement calculator helps you work out whether your savings can replace your paycheck. A popular starting point is the 25x rule: save 25 times the amount you expect to spend each year. Someone who plans to spend $60,000 a year from their portfolio would aim for $1.5 million. This comes from the 4% rule, which draws from a 1998 study known as the Trinity Study.
This page's calculator is a general ROI tool. Enter what you invest and what you expect to get back, or use the Return menu to apply a yearly rate, then see the return over any time period. To model contributions, employer matches and contribution limits, use our dedicated 401(k) and Roth IRA calculators, which work year by year up to your retirement age.
Time does more than anything else. Investing $500 a month at 7% from age 25 grows to about $1,312,407 by age 65. Waiting until 35 gives about $609,985, and waiting until 45 gives about $260,463. Those are assumed steady returns, before inflation. Real markets rise and fall, but the lesson holds: an early start is hard to replace.
Your plan also has to survive taxes, inflation, health costs and a long life. Many people retire in their 60s and live for decades afterward. Social Security may cover part of your spending, and your age at claiming changes how much you get. Treat any target as a range, rerun it every year or two, and use more cautious returns than you hope for.