- Attention Leakage Calculator
- Estimated daily leakage = notifications × minutes to refocus + unplanned checks × minutes per check. Weekly and yearly figures multiply that estimate by seven and 52. The model intentionally does not claim every interruption is harmful or that all recovered time becomes productive.
- Screen-Time Opportunity Cost
- Weekly hours = recreational minutes per day × days per week ÷ 60. The annual figure uses 52 weeks. Necessary work, accessibility, navigation, and communication use are excluded when a visitor chooses to exclude them.
- Mindful Spending Calculator
- Potential redirect = recurring monthly spending × the selected redirect percentage. Work-time figures divide recurring spending by the visitor’s stated effective hourly pay. Currency values are illustrative and use USD formatting only.
- Time–Money–Freedom Calculator
- Work hours = recurring monthly cost ÷ effective hourly pay. Potential yearly redirect = monthly redirect × 12. “Runway” = yearly redirect ÷ stated monthly essential costs. It excludes investment returns, taxes, debt interest, inflation, benefits, and emergency changes; it is not retirement or financial-planning guidance.
- Layoff Risk Compensation Calculator
- Expected annual earnings = salary × (1 − annual layoff probability × unemployment months ÷ 12). Its break-even probability solves that equation for the higher-pay role. It assumes unpaid unemployment and excludes severance, unemployment benefits, taxes, bonuses, benefits, job-search cost, and longer-term career effects.
- Retirement Opportunity Cost Calculator
- Future value = purchase price × (1 + annual return)years. Contribution delay uses the monthly rate and the entered monthly contribution to estimate the time required to rebuild the initial outlay and its missed growth. Returns, taxes, fees, inflation, and sequence risk are not modeled.
- Compounding & Time Calculator
- Annual contributions grow by the future-value-of-an-annuity formula: contribution × ((1 + return)years − 1) ÷ return. The late-starter scenario solves the annual contribution required to reach the early starter’s ending value. The coast scenario compares contributing for the first entered years with beginning after that point. Both use annual compounding and end-of-year contributions.