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📊Savings Rate Calculator

Calculate your true savings rate — including pretax retirement contributions — and see exactly how many years that rate puts you from financial independence.

Your Numbers

Your Results

Savings Rate
40.3%
Years to FI
20 yrs
Accelerating
A solid, sustainable rate well above the national average, putting financial independence within a couple of decades for most people.
Annual Savings
$32,400
FIRE Number
$1,200,000

Years to FI at Different Savings Rates

What Is Savings Rate?

Your savings rate is the percentage of your income you actually save and invest, rather than spend — and it's the single number that most directly determines how many years stand between you and financial independence. A small raise or a slightly cheaper rent barely moves the needle; a meaningfully higher savings rate compounds into years, sometimes decades, off your timeline.

Most savings rate calculations done casually in your head leave out pretax retirement contributions (401k, 403b, HSA, traditional IRA) because that money never shows up in your take-home pay — which understates your real rate. This calculator adds it back in, so the number you see reflects everything you're actually putting toward your future, not just what lands in your checking account.

How This Calculator Works

Your income base is your take-home pay plus pretax retirement contributions — this represents your full pre-spending income. Your savings rate is what's left after expenses, divided by that income base. The years-to-FI projection then runs that same annual savings amount forward against your FIRE number (25x your expenses at a 4% withdrawal rate, adjustable), compounding at your expected return.

Take-home pay + pretax contributions
Together, these form your real income base — pretax contributions count as savings even though they skip your paycheck entirely.
Expected annual return (real)
Use a real, after-inflation return here (often modeled around 5%), since the years-to-FI projection is expressed in today's dollars — this is typically lower than the nominal return assumptions used in other calculators on this site.
Savings Rate = (Income Base − Expenses) ÷ Income Base

Psychological Considerations

Savings rate is popular in the FIRE community precisely because it's a percentage, not a dollar amount — it puts a six-figure earner with high expenses and a moderate earner with disciplined spending on the same scale, which is motivating for the latter and occasionally humbling for the former. But the psychological trap on the other side is treating the percentage itself as the goal, independent of what it costs to get there. A 75% savings rate achieved through genuine lifestyle alignment is durable; the same rate achieved through joyless deprivation often reverses the moment willpower runs out, which shows up financially as inconsistent contributions and emotionally as burnout on the saving side, not just the working side.

It's worth periodically asking whether your current rate reflects what you actually value, or just what you're capable of white-knuckling. A savings rate you can sustain for the entire timeline this calculator projects is worth more than a higher one you abandon in year three.

Frequently Asked Questions

Why does this calculator add back pretax contributions instead of just using my paycheck?

Because pretax contributions (401k, 403b, HSA, traditional IRA) are real savings — they just never appear in your take-home pay. Leaving them out understates your actual savings rate and overstates how many years you have left, since that money is genuinely compounding toward your FIRE number.

Why use a 'real' return instead of the same nominal return as other calculators?

Because this projection expresses your FIRE number in today's dollars, a real (inflation-adjusted) return models growth correctly without needing to separately inflate your future expenses. Other calculators on this site that don't make this assumption explicit use nominal returns instead — both approaches are valid as long as the assumption stays consistent within the calculation.

Why does going from 50% to 60% savings rate save more years than going from 10% to 20%?

Because the relationship is nonlinear — at low savings rates, your expenses (and therefore your FIRE number) are still large relative to your savings, so each added percentage point buys relatively little. At high rates, your expenses are shrinking fast relative to income and your annual savings are large relative to a smaller target, so the same percentage-point increase buys disproportionately more time. This is the effect behind the often-cited claim that savings rate matters more than income.

Does a higher savings rate always mean a better plan?

Not automatically — it depends on what you're cutting to get there. A savings rate built on sustainable lifestyle choices is a durable plan; one built on temporary deprivation often doesn't survive contact with real life. The percentage is a useful measure of progress, not a complete measure of whether the plan is a good one for you.