Calculators

Practical tools with editable examples. Estimate income, costs and returns with transparent assumptions and formulas.

Examples are illustrative, not verified market prices. Enable JavaScript to edit inputs and calculate.

Vehicle depreciation — See the real cost per rental day, trip and mile.

Mileage tracker — Record trips, separate personal use and export your log.

Smart-home ROI — Compare installation costs with time and energy savings.

Storage pricing — Estimate a monthly asking price and net rental income.

Garage rental income — Model parking or storage income after vacancy and expenses.

Co-host revenue split — Compare flat fees and percentage fees in weak and strong months.

Asset yield comparison — Compare annual net yields across different asset types.