Related product
IkigaiNiche
Your Business System Target depends on being in a niche with enough demand and pricing power to support it. IkigaiNiche helps you find one that can actually fund the number.
Explore IkigaiNiche →Free Tool · Financial Freedom
Freedom Number Calculator
Two numbers stand between you and freedom. Your Escape Number, the lump sum where investment yields pay your lifestyle forever. And your Business System Target, the monthly revenue that funds your life AND builds that lump sum at the same time. The monthly target only lands if you're in a niche with pricing power and real demand, IkigaiNiche helps you find one.
Free Tool 12
Freedom Number Calculator
Walk through 4 steps. Get your two numbers instantly.
1
Lifestyle
2
Allowance
3
Tax Rate
4
Results
What does your ideal lifestyle cost each month?
Add a line item for each major expense. Be honest, this is your desired lifestyle, not your current one.
Lifestyle Cost
$0
How much monthly allowance do you want?
This is your budget for clothes, gadgets, dining out, entertainment, and everything that doesn't fit a fixed line item.
Lifestyle cost
,
+ Allowance
,
= Gross Living Cost
,
What's your effective tax rate?
Self-employed income gets taxed hard. We gross up your costs to find what you actually need to earn before the government takes its cut.
Gross Living Cost
,
Tax rate
40%
Formula
Gross ÷ (1 − rate)
= Net Living Cost (pre-tax)
,
Your two Freedom Numbers
These are the targets that define financial freedom for your specific lifestyle.
Escape Number
,
The lump sum where a 5% annual yield covers your entire lifestyle cost, indefinitely. Hit this and you never have to work again.
Business System Target
,
Monthly business revenue needed to cover your lifestyle AND fund the money system simultaneously. Pay yourself, pay taxes, and build wealth, all at once.
Taxes (40%)
-/mo
Money System (40%)
-/mo
Lifestyle (20%)
-/mo
Net Living Cost
,
× 12 months
,
÷ 5% yield rate
(conservative safe withdrawal)
= Escape Number
,
Inspired by The Millionaire Fastlane by MJ DeMarco. Built by @chams_builds
Inspired by The Millionaire Fastlane by MJ DeMarco. Built by @chams_builds
How the formula works
The Freedom Number Calculator uses a two-system model: a Money System (passive investments) and a Business System (active income engine). The goal is to reach a point where the money system alone can fund your lifestyle, and the business system accelerates how fast you get there.
- Lifestyle Cost, Sum of all your monthly fixed expenses (housing, transport, travel, etc.)
- Gross Living Cost, Add your monthly allowance for misc spending on top of fixed costs.
- Net Living Cost, Gross up for taxes: Gross ÷ (1 − tax rate). This is what you need to earn before taxes.
- Escape Number, (Net Living Cost × 12) ÷ 5%. At 5% annual yield, this lump sum generates enough to cover your lifestyle indefinitely.
- Business System Target, Gross Living Cost × 5. Of this monthly revenue: 40% covers taxes, 40% feeds the money system, 20% pays for lifestyle. Three levers firing simultaneously.
The 40/40/20 split ensures that every dollar through your business is doing double duty, living your life and building your escape.
Related tool
SaaS Pricing Calculator
Once you know your Business System Target, back into a realistic SaaS price from your revenue goal, costs, and expected customer count.
Use the calculator →Related tool
Side Project Time Budget
Knowing your freedom number is step one. Knowing exactly how many builder hours you have each week to get there is step two.
Use the calculator →Frequently asked questions
What is my freedom number?
Your freedom number is the amount of money (either a lump sum invested or monthly business income) required to cover your lifestyle so working becomes optional. It's personal, it depends on your annual expenses, the safe withdrawal or yield rate you trust, and whether you want to just cover costs or keep building wealth on top.
How much money do I need to retire or quit my job?
The common rule is 25x your annual expenses invested, based on a 4% safe withdrawal rate. Spend $60k a year, you need roughly $1.5M. A more conservative 3% rule gives you 33x expenses. This calculator runs both and also shows the monthly business income number, which most founders will hit faster than the lump sum.
What is the FIRE number and how do I calculate it?
FIRE (Financial Independence, Retire Early) number is your annual expenses multiplied by 25, the lump sum where a 4% withdrawal rate covers you indefinitely. If your expenses are $48k, your FIRE number is $1.2M. Lean FIRE uses lower expenses, Fat FIRE uses higher. The calculator on this page outputs your exact FIRE-equivalent number in seconds.
How much passive income do I need to quit my job?
Divide your annual expenses by 12 to get the monthly passive income target. Someone spending $72k per year needs $6k per month in passive income to match. If that income comes from a business rather than investments, you can hit the target with far less capital, which is why the calculator shows a Business System Target alongside the pure investment number.
What's the difference between FIRE and a business system target?
FIRE depends on accumulating a large lump sum (25-33x annual expenses) and living off investment yield. A business system target is the monthly revenue a business needs to generate to cover your lifestyle AND funnel the surplus into investments. Most founders reach the business target years before the FIRE lump sum, you don't need to wait for $1M in the bank to be free.
Should I aim for investment freedom or business freedom first?
Business freedom comes first for most builders. A $15k/month business pays your bills immediately and throws off cash to invest. Pure investment freedom requires years of compound growth on top of high savings. Hit business freedom first, then let the overflow build the FIRE number in the background. The calculator shows both so you can see which target is closer, pair it with the Side Project Time Budget to see how fast you can get there.