Savings Rate Calculator
Savings rate is the single biggest driver of time to financial independence — see how yours stacks up.
Your Numbers
Expected Real Return: 7.0%
Inflation-adjusted; 7% is a common baseline for U.S. equities.Safe Withdrawal Rate: 4.0%
Your Results
20.0%
current savings rate
30.7 years
to financial independence at this savings rate
Years to FIRE at different savings rates
| Savings Rate | Years to FIRE | vs. your rate |
|---|---|---|
| 10% | 41.7 years | +10.9 |
| 20% | 30.7 years | — |
| 30% | 24.0 years | -6.7 |
| 40% | 19.0 years | -11.7 |
| 50% | 15.0 years | -15.8 |
| 60% | 11.4 years | -19.3 |
| 70% | 8.3 years | -22.5 |
| 80% | 5.4 years | -25.4 |
Why Savings Rate Matters More Than Income
Savings rate is the single most important variable in the FIRE equation — more important than your income, your investment returns, or the market. Here's why: your savings rate does two things at once. A higher rate means you're adding more to your portfolio AND simultaneously reducing the amount you'll need in retirement (because you live on less).
That's why someone saving 50% of their take-home pay can retire in roughly 17 years regardless of whether they earn $50,000 or $500,000. The math doesn't care about dollar amounts — only ratios.
The Classic Savings Rate Table
Popularized by Mr. Money Mustache's "Shockingly Simple Math" article, this table assumes a 5% real return and 4% safe withdrawal rate. Starting from zero:
| Savings Rate | Years to FIRE |
|---|---|
| 10% | ~51 years |
| 20% | ~37 years |
| 30% | ~28 years |
| 40% | ~22 years |
| 50% | ~17 years |
| 60% | ~12.5 years |
| 70% | ~8.5 years |
| 80% | ~5.5 years |
Three Ways to Raise Your Savings Rate
1. Cut the big three. Housing, transportation, and food typically make up 60–70% of most budgets. A smaller house, one fewer car, and cooking more often moves the needle far more than cancelling streaming subscriptions.
2. Raise income without raising spending. When you get a raise or bonus, bank the entire amount. Every 10% raise you fully save can add multiple percentage points to your rate.
3. Automate and front-load. Max tax-advantaged accounts (401(k), Roth IRA, HSA) first thing each year. Out of sight, out of mind — you can't spend what never lands in your checking account.