InstaCalcs

Retirement Savings Calculator

Figure out if you're on track for retirement. Enter your current age, retirement goal age, existing savings, and monthly contributions to see your projected retirement fund and whether you'll meet your target.

How to Use

Enter your current age, the age at which you plan to retire, your current retirement savings, and how much you contribute monthly. The calculator assumes a default 7% annual return (a common long-term estimate after inflation for a stock-heavy portfolio). It shows your projected retirement fund, total contributions, and investment gains.

Formula

FV = PV(1+r)^n + PMT × [((1+r)^n - 1) / r]

This is the standard future value formula combining a present lump sum with regular contributions. PV is your current savings, PMT is your monthly contribution, r is the monthly return rate, and n is the number of months until retirement. The key insight is that even small monthly increases have an outsized impact over decades due to compounding.