NOW WITH LIFE HOUR INDEX™ INTEGRATION
The only personal finance framework that treats purchases as unit economics decisions — calculating true incremental cost in both dollars and Life Hours, the working hours your income requires to pay for it.
Analyze any purchase and see its true incremental cost — monthly, daily, and per use. Enter your income above to also see cost expressed in Life Hours™, the working hours required to pay for it. Compare two options side by side, or build your Lifestyle Ledger.
Compare two competing options by true dollar cost and Life Hours. See which truly delivers better value over the full ownership period.
Your Lifestyle Ledger catalogs everything you own with its true monthly cost and annual Life Hours consumed. This is the most powerful number in the True Cost Engine — the hidden cost of your material life in both dollars and working hours.
Every block represents one hour of your working year — all 2,080 of them. Add items to your Lifestyle Ledger above and watch them claim their hours. What's left in white is truly yours.
The True Cost Engine™ and Life Hour Index™ are grounded in decades of peer-reviewed research across behavioral economics, cognitive psychology, and decision theory. This is not intuition — it is applied science.
After calculating the True Cost and Life Hour™ count, every purchase falls into one of four outcomes. The matrix makes the rational decision visible — overriding the cognitive biases that default spending toward impulsivity.
[1] Thoreau, H.D. (1854). Walden; or, Life in the Woods. Ticknor and Fields. The "cost measured in life" framework is the philosophical ancestor of the Life Hour Index™. Thoreau quantified his own cabin construction and maintenance costs in hours of manual labor rather than currency — a methodology 170 years ahead of modern behavioral economics.
[3] Robin, V. & Dominguez, J. (1992). Your Money or Your Life. Viking Penguin. The "life energy" calculation — hourly wage adjusted for work-related expenses, commuting, and decompression time — is the foundational concept behind the Life Hour™ unit. The Life Hour Index™ extends this into an integrated per-purchase and portfolio analysis system.
[2] Thaler, R.H. (1999). "Mental Accounting Matters." Journal of Behavioral Decision Making, 12(3), 183–206. Established that people categorize and treat money differently based on its perceived source and intended use — rather than as fungible units. The True Cost Engine™ creates a single, unified cost frame that bypasses mental accounting distortions.
[5] Prelec, D. & Simester, D. (2001). "Always Leave Home Without It: A Further Investigation of the Credit-Card Effect on Willingness to Pay." Marketing Letters, 12(1), 5–12. Demonstrated that credit card transactions increase willingness to pay by 83% relative to cash for identical items — because they reduce payment salience. The Life Hour Index™ reintroduces maximum salience by anchoring price to earned hours rather than abstract currency.
[6] Kahneman, D. & Tversky, A. (1979). "Prospect Theory: An Analysis of Decision Under Risk." Econometrica, 47(2), 263–291. Nobel Prize in Economics, 2002. The seminal work establishing that humans are loss-averse and present-biased — systematically overweighting immediate costs/gains versus future ones. The True Cost Engine™ counteracts present bias by spreading cost forward across the full ownership period.
[7] Frederick, S., Novemsky, N., Wang, J., Dhar, R., & Nowlis, S. (2009). "Opportunity Cost Neglect." Journal of Consumer Research, 36(4), 553–561. Showed that simply prompting consumers to consider opportunity cost reduced willingness to pay by 20%. The 2,080-Hour Life Chart™ makes opportunity cost structurally unavoidable — not optional.
[8] Statman, M. & Caldwell, D. (1987). "Applying Behavioral Finance to Capital Budgeting: Project Terminations." Financial Management, 16(4), 7–15. Documents the tendency to underestimate ongoing and replacement costs of existing assets — directly addressed by the Lifestyle Ledger's true monthly depreciation model.
[4] Whillans, A.V., Dunn, E.W., Smeets, P., Bekkers, R., & Norton, M.I. (2017). "Buying time promotes happiness." Proceedings of the National Academy of Sciences, 114(32), 8523–8527. Across six studies and 4,690 participants, people who spent money to gain free time reported higher life satisfaction than those who did not — regardless of income level. Life Hours saved are more valuable than dollars saved.
[9] Ruskin, J. (1860s). The Common Law of Business Balance. The principle that quality-adjusted value almost always favors higher-quality goods has been confirmed across product categories by modern consumer research.
[10] Chu, W., Choi, B., & Song, M.R. (2005). "The Role of On-Line Retailer Brand and Infomediary Reputation in Increasing Consumer Purchase Intention." International Journal of Electronic Commerce, 9(3), 115–127; supplemented by Consumer Reports longitudinal durability data (2015–2023) showing quality-tier products consistently outperform budget alternatives on cost-per-year-of-ownership by 15–40% across appliances, electronics, and clothing categories.
[B1] National Association of Home Builders (2021). Study of Life Expectancy of Home Components. Primary source for appliance and home component useful life benchmarks used in the Category Reference Guide.
[B2] U.S. Bureau of Labor Statistics (2023). Consumer Expenditure Survey. Used for national average spending benchmarks by category.
[B3] IRS Publication 946 (2023). How to Depreciate Property. MACRS asset class useful life schedules used as cross-reference for consumer goods expected life benchmarks in the calculator defaults.
DISCLAIMER: The True Cost Engine™ and Life Hour Index™ are educational and illustrative tools. They do not constitute financial, investment, legal, or tax advice. Life Hour™ calculations use gross annual income ÷ 2,080 standard work hours (BLS definition of full-time employment). Individual tax rates, actual take-home pay, and true hourly compensation vary. Compound projections assume consistent contribution rates and average historical returns — past performance does not guarantee future results. ScaledMoney|OS™ and Lean Dollar® are proprietary frameworks of Ray Harned / [Entity Name]. Life Hour™, Life Hour Index™, True Cost Engine™, Life Hour Chart™, and related marks are proprietary. All rights reserved.