About this calculator
Compare two pack sizes by price per unit with winner flag and savings percent.
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.
Analyze profitability and percentage return on business capital and investments.
Gross to net salary with income tax, social contributions and deductions, monthly and annual.
Compare two deals by price per unit.
Input Parameters
Calculation Summary
Compare two pack sizes by price per unit with winner flag and savings percent.
Price divided by quantity — lower wins regardless of pack size.
Convert first (e.g. kg to g); comparison needs the same unit.
Often but not always — this check catches shrinkflation traps.