Savings Rate Calculator

Your savings rate is the single biggest driver of your FIRE timeline. Enter your income and spending to see where you stand.

Why Savings Rate Matters More Than Income

Two people earning very different salaries can retire at the same age if they save the same percentage of their income. That's because your savings rate determines two things at once: how fast your portfolio grows, and how large a portfolio you actually need. A higher earner who spends most of their raise on a bigger house or car doesn't shorten their timeline, they just shift their lifestyle. What moves the FIRE date is the gap between what you earn and what you spend.

This calculator uses gross income as the denominator, which is the common FIRE-community convention, so your savings rate here may read lower than a take-home-pay calculation. It's a simplification: it doesn't account for taxes, pre-tax 401(k) contributions, or employer match separately. For a tax-adjusted view of your full FIRE timeline, use the main FIRE Calculator.

Fastest ways to raise it

• Fix housing and transportation first, they're typically 50%+ of spending and the hardest to change later.
• Automate contributions on payday so saving happens before you see the money.
• Direct every raise or bonus toward savings instead of lifestyle upgrades.
• Capture any employer 401(k) match in full, it's an immediate, guaranteed return.