The financial category on Calcular.online groups tools for loans, investments, and classic financial calculators. Loan amortization supports Brazilian methods such as PRICE (fixed installment), SAC (declining balance), SACRE, and MEJS, with optional insurance and fees rolled into the schedule. Compound-interest calculations handle deposits, withdrawals, inflation, and period-by-period growth with charts and export-friendly tables.

You might model a R$ 280,000 home loan at 9.8% a.a. over 360 months under SAC to see how the installment falls each month while total interest differs from a PRICE table. For investments, enter an initial R$ 10,000 lump sum plus R$ 400 monthly contributions at 0.9% per month to review balance evolution, stacked area charts, and a paginated ledger capped at 9,999 periods for performance.

The HP 12c simulator reproduces the iconic Hewlett-Packard financial calculator with Reverse Polish Notation, time-value-of-money registers, amortization, NPV, IRR, and statistics entirely in your browser. Windows Calculator mode mirrors the familiar Standard and Scientific layouts. All monetary math on server-side calculators uses decimal precision; simulators use decimal.js locally and persist keystroke state in localStorage.