Savings Rate Calculator
How fast are you getting free?
Your savings rate, the share of your pay you keep, decides your retirement date more than your income ever will. Enter what you take home and what you spend, and see the years it buys you.
How this is worked out
Your savings rate is what you keep divided by what you take home. Your FIRE number is your yearly spending divided by the withdrawal rate. We then grow what you already hold, plus what you save each year, at your real return (after inflation) until the pot reaches that number, and count the years.
It assumes a flat income and spending, and it ignores taxes and pensions, which vary by country and can move the real date by years. It's a fast first pass, not advice.
Why savings rate, not income, decides the date
The most common mistake in early-retirement planning is to obsess over income. But a raise you spend changes nothing. Your savings rate, the share of your take-home pay you keep, is the number that actually sets your retirement date, and it does so twice over. A higher rate means you invest more each year and that you live on less, which shrinks the pot you're aiming at. It pushes on the contributions and the target at the same time.
That's why two people on wildly different salaries who save the same percentage reach financial independence in roughly the same number of years. Once you've seen your rate, the natural next step is the FIRE calculator, which turns it into an age, and the 4% rule, which explains the multiple behind your FIRE number.
The savings-rate-to-years intuition
Starting from zero at a 5 percent real return, the relationship between the rate you save and the years to independence is steep and, once you've seen it, hard to unsee:
Save around 50 percent of your take-home pay and you're roughly 17 years from independence. Push to about 65 percent and it drops to around 10 and a half years. Climb toward 75 percent and you're inside seven. Every extra point you save both feeds the pot faster and lowers the finish line, so the curve bends much harder than a linear guess would suggest. This calculator starts you from what you've already invested rather than zero, so your own number will land a little sooner than the from-zero rule of thumb.
The quiet drag of lifestyle inflation
The reason savings rates rarely rise on their own is lifestyle inflation: spending that creeps up to swallow each pay rise, so the rate holds flat no matter how much you earn. It's the single biggest thing standing between a decent income and an early exit. The fix isn't austerity, it's letting raises land in the invested column instead of the spending one. Because the savings rate governs both sides of the equation, defending it against lifestyle creep is the highest-leverage habit in the whole of FIRE.
Turn your rate into a real freedom age
Runway takes your savings rate and applies your country's actual tax, pension and account rules, runs 400 market futures over it, and shows the levers that pull your date sooner. Built for Norway, it launches on the App Store on 25 August 2026, and the beta is open now.
Runway takes your savings rate and applies your country's actual tax, pension and account rules, runs 400 market futures over it, and shows the levers that pull your date sooner. Your freedom age is free, forever.
Try the beta on TestFlight Download free on the App StoreFrequently asked
What is a good savings rate?
There's no single right number, but higher is better, because the rate is what sets your date. Saving 10 to 15 percent is a common baseline pointing to a full-length career. Push toward 30, 50 or 65 percent and the years fall sharply: about 17 years from zero at 50 percent saved (5 percent real return), and roughly 10 and a half at 65 percent.
Why does my savings rate decide my date?
It sets two things at once. A higher rate means you invest more each year, and that you live on less, which shrinks the pot you need. Because it pushes on both the contributions and the target, it moves your date far more than a pay rise does. Two people on different incomes who save the same percentage finish in roughly the same number of years.
Does it include my employer or state pension?
No, this is a deliberately simple first pass. It doesn't model an employer pension, a state pension, taxes, or account rules, which vary by country and can shift your real date by years. The Runway app layers those country rules onto your own figures; this page is the quick, universal starting point.
What return should I use?
Use a real return, meaning your return after inflation, so the answer stays in today's money. A broad global stock portfolio has historically sat near 5 percent real over long stretches, though nothing future is guaranteed and more bonds means less. Try 4 to 6 percent and watch how far the years swing, that spread is the honest uncertainty.
Built by Dylan, maker of Runway
Italian, in Norway about eight years, building the cross-border FIRE planner that didn't exist for someone like me. This calculator is an educational tool, not financial or tax advice.
Related: FIRE calculator, the 4% rule explained, and the Coast FIRE calculator.