The Retirement Savings Calculator projects your retirement balance based on your current savings, contributions, and expected return — and tells you whether you're on track to maintain your lifestyle in retirement. It's the most important financial calculation most people never run.
Use it free in your browser — no account or download required.
Key Features
Inflation-adjusted balance in today's dollars
Annual contribution growth rate modelling
Social Security and pension income offset
On-track status vs 4% rule retirement target
Required monthly saving if currently off-track
Savings growth chart by age up to retirement
How to Use Retirement Savings Calculator
Step 1: Enter your current age and target retirement age The number of years between now and retirement is the most powerful variable in the calculation. Even 5 extra years of saving and compounding makes an enormous difference.
Step 2: Enter your current retirement savings Include all tax-advantaged accounts: 401(k), IRA, Roth IRA, pension, ISA, SIPP. Enter the current total balance across all accounts.
Step 3: Set your monthly contribution Enter how much you're currently contributing each month across all retirement accounts. Include any employer match — it's free money that significantly boosts your projected balance.
The 4% rule: you can sustainably withdraw 4% of your retirement balance per year. A $1,000,000 balance supports $40,000/year in withdrawals.
Increasing contributions by even 1% of your salary now, while you're young, beats increasing by 5% when you're older.
Include expected Social Security or pension income to get a more accurate picture of your actual retirement shortfall.
Frequently Asked Questions
What return rate should I use for my retirement projections?
6–7% is a reasonable real (after-inflation) return for a diversified long-term portfolio. Use 5% if you're conservative. Use 8–9% for an aggressive all-equities allocation if you're more than 20 years from retirement.
How much do I need to retire?
A common benchmark is 25× your expected annual spending (based on the 4% rule). If you need $60,000/year, you need $1.5M. But use this calculator with your own numbers for a personalised target.
Available Plans
Free — Core features available instantly, no account needed
Pro — Unlock AI features, unlimited saves, and PDF/DOCX export
Pro+ — Everything in Pro, plus no ads and advanced AI features