About this calculator
ROI measures profit relative to invested capital: (revenue − investment) / investment × 100%.
Annuity and differentiated monthly installments, interest breakdown, and amortization schedule.
Calculate PITI (Principal, Interest, Taxes, Insurance), PMI, and accelerated payoff savings.
Visualize compound growth with recurring deposits, annual rate, and investment horizons.
Add or extract Value Added Tax (VAT) with international country presets.
Gross to net salary with income tax, social contributions and deductions, monthly and annual.
Tips with bill splitting and sale discounts with final price.
Analyze profitability and percentage return on business capital and investments.
ROI measures profit relative to invested capital: (revenue − investment) / investment × 100%.
It depends on risk and horizon, but sustained double-digit annual percent is strong for most businesses.
Profit is absolute money earned; ROI is efficiency per invested unit.
Raw ROI ignores time; annualize it when comparing projects of different lengths.