Life-Hours Calculator: What Does This Really Cost You?

Direct answer: this free tool converts your income into a true hourly wage — after taxes, commute time, and work costs — then shows any purchase's real cost in hours of your life and lost future investment growth.

A worker earning $30/hour on paper with a 45-minute commute and typical taxes often has a true hourly wage closer to $19-21/hour — a 30%+ gap most pay stubs never show.

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Step 1: Find Your True Hourly Wage

Annual salary ($) Estimated effective tax rate (%) Hours worked per week

Total commute hours per week Monthly work-related costs ($) — parking, wardrobe, etc.

Step 2: What Does a Purchase Really Cost?

Price of the item or subscription ($) Assumed average annual investment return (%)

Years until you'd otherwise spend/need the money

Step 3: Your Freedom Number

See the long-term target: the portfolio size that would let your investments cover your expenses indefinitely.

Monthly living expenses ($) Safe withdrawal rate (%)

Current invested savings ($) Monthly savings/investing amount ($) Assumed average annual return (%)

What Is a Life-Hours Calculator?

Most price tags only tell you what something costs in dollars. This tool tells you what it costs in the one truly non-renewable resource you have: hours of your life. It combines three numbers that are normally scattered across different calculators — your true hourly wage, the life-hours cost of any purchase, and the long-term opportunity cost of spending versus investing — into a single two-minute session.

How the Math Works

True hourly wage = (annual take-home pay − monthly work costs × 12) ÷ (weekly hours worked + weekly commute hours) × 48 working weeks. Life-hours cost = purchase price ÷ true hourly wage. Opportunity cost = purchase price × (1 + return rate) ^ years. Freedom number = annual expenses ÷ safe withdrawal rate.

Frequently Asked Questions

What is a true hourly wage?

Your true hourly wage is your take-home pay after taxes and work-related costs, divided across all time committed to work — including unpaid commute time — not just paid hours.

How does the Life-Hours Calculator work?

Enter your income, tax rate, commute time, and work costs to get your true hourly wage. Then enter any price to see how many hours of your life it costs, and what that money would grow to if invested instead.

Is this financial advice?

No. This tool provides general educational information only and is not financial, investment, or tax advice. See our disclaimer for details.

Is the calculator free and private?

Yes. It's free with no login, and all calculations run in your browser — nothing you enter is transmitted or stored.

Want the full breakdown behind this tool? Read What Is a Life-Hours Calculator? or see how to use it step by step.

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