About this calculator
Cryptographically secure random numbers, dice (d4–d100) and coin flips with history, powered by Web Crypto.
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.
Random numbers, dice rolls and coin flips with history.
Cryptographically secure random numbers, dice (d4–d100) and coin flips with history, powered by Web Crypto.
Uses crypto.getRandomValues — OS-level entropy, not Math.random.
d4 to d100, up to 10 dice per roll with total.
Heads/tails tally accumulates until you switch tabs.