Your Base Earnings & Schedule
Enter your salary or wage and standard work schedule.
Live Real-Time Earning Clock
Start the clock while you work or take a break to see your income accumulate cent-by-cent in real time.
Everyday Activity Opportunity Cost
Based on your current rate ($37.50/hr), here is the economic value of common activities:
2-Hour Movie
120 minutes of time
Social Media (1 hr)
Daily doomscrolling cost
Daily Commute (1.5 hrs)
Round-trip travel time
Pointless Meeting (1 hr)
Could have been an email
The Complete Guide to Valuing Your Time & Opportunity Cost
How to calculate your true hourly rate, why Ben Franklin's maxim still governs modern microeconomics, and how the "Life Energy" framework changes the way you spend money.
⏳ 1. The Economics of Opportunity Cost & "Time is Money"
In 1748, Benjamin Franklin published his celebrated essay Advice to a Young Tradesman, introducing the phrase that defined modern productivity: "Remember that time is money." Franklin wrote:
"He that can earn ten shillings a day by his labour, and goes abroad, or sits idle one half of that day, though he spends but sixpence during his diversion or idleness, ought not to reckon that the only expence; he has really spent, or rather thrown away, five shillings besides."
In contemporary economics, this is formalized as Opportunity Cost: the loss of potential gain from other alternatives when one alternative is chosen. When you spend two hours driving across town to save $5 on a tank of gasoline, you haven't saved money unless your time is worth less than $2.50 per hour.
Understanding your per-hour and per-minute value gives you a rational benchmark to stop making irrational, time-wasting financial trade-offs.
🔋 2. The "Life Energy" Concept: Your Money or Your Life
In their groundbreaking personal finance manifesto Your Money or Your Life, authors Vicki Robin and Joe Dominguez proposed a transformative mental model: Money is not just currency; it is something you pay for with your life energy.
Life energy is the finite, non-renewable allocation of time you possess on this planet (roughly 80 years $\approx$ 700,000 hours). You trade chunks of this irreplaceable life energy to an employer in exchange for compensation.
The Life Energy Formula for Purchases:
Life Energy Cost (Hours) = Item Price ($) / True Net Hourly Rate ($/hr)
When you purchase a $1,200 luxury watch, you aren't just giving up $1,200 in bank balance. If your true net take-home rate is $25/hour, you are actively surrendering 48 hours (more than a full 5-day work week) of your life to own that object. This simple shift in perspective dramatically reduces impulsive consumer spending.
📉 3. Nominal Wage vs. True Take-Home Hourly Wage
Most workers believe their time is worth their stated job wage. If you earn $80,000 per year at 40 hours/week, your nominal hourly rate is:
However, your True Hourly Rate incorporates three critical drains on your time and resources:
- Income and Payroll Taxes: Progressive income taxes, FICA, and state taxes reduce your gross salary by 20% to 35%. An $80k salary often yields only $58k in net pay.
- Unpaid Commute and Preparation Time: The average American commutes 27.6 minutes each way. That represents nearly 5 hours per week of unpaid travel time dedicated solely to maintaining the job. Total work hours rise from 40 to 45 hours per week (2,250 hours/year).
- Work-Imposed Expenses: Vehicle depreciation, gasoline, subway fares, professional wardrobe, dry cleaning, and convenient restaurant lunches cost the average commuter between $3,000 and $6,000 annually.
True Hourly Rate = (Gross Income - Taxes - Work Expenses) / (Paid Hours + Unpaid Commute Hours)
Example: ($80,000 - $20,000 tax - $4,000 exp) / (2,000 paid hrs + 250 commute hrs) = $24.89 / hour. The actual wage is 35% lower than the paper salary!
🚀 4. The "Buy Back Your Time" Delegation Rule
Once you know your true hourly rate, you can make intelligent decisions regarding task outsourcing and delegation. In economics, this relies on David Ricardo's principle of Comparative Advantage.
Ask yourself this simple diagnostic question:
If your time is worth $40/hour and you spend 4 hours every weekend deep-cleaning your home, you are spending $160 in time value. Hiring a professional service for $90 saves you $70 of net value and frees up 4 hours to rest, exercise, work on a high-value side business, or spend time with loved ones.
❓ Frequently Asked Questions
How is my time value per minute and second calculated?
Your hourly rate is computed from your gross annual salary divided by your total annual working hours (typically 2,000 hours for 40 hours/week over 50 weeks). Your per-minute rate is your hourly wage divided by 60, and your per-second rate is your hourly wage divided by 3,600.
What is the difference between Nominal Wage and True Hourly Rate?
Your nominal wage is your gross stated pay (e.g. $40/hour or $80,000/year). Your True Hourly Rate accounts for real-world deductions: income taxes taken from your paycheck, unpaid commute hours added to your working day, and job-related costs like transportation, fuel, clothes, and meals.
What is "Life Energy" in personal finance?
The "Life Energy" concept, popularized in Your Money or Your Life, views money as physical hours of finite human existence. When deciding whether to buy a luxury item, you calculate how many hours or days of your life you must labor to pay for it after taxes.
When does it make sense to "buy back your time"?
It makes economic sense to outsource chores (cleaning, yard maintenance, grocery delivery) whenever the hourly cost to hire someone is noticeably lower than your personal hourly wage, or when the reclaimed time allows you to earn more, avoid burnout, or prioritize family.
Why is commute time considered unpaid work?
Commute time exists solely to serve employment. If you commute 1 hour each way daily (10 hours per week), you are devoting 50 hours per week to your job while only getting compensated for 40. This reduces your effective hourly earnings by 20% before taxes or gas expenses are factored in.
Is my salary or financial data stored on your servers?
No. All calculations run 100% locally in your browser memory. No income numbers, tax rates, or personal inputs are ever stored on our servers or transmitted across any network.