Why FinCalcs?
No sign-ups, no ads chasing you, no data sent to any server. Each calculator is a single lightweight page that works offline once loaded — ideal for quick decisions on loans, investments, taxes and pay.
Free Financial Calculators
Fast, accurate and 100% private — every calculation runs in your browser. Nothing you type ever leaves your device.
🇺🇸 United States
US · Home
Mortgage Calculator
Monthly payment with taxes, insurance, PMI & HOA, plus full amortization schedule.
US · TaxFederal Income Tax Calculator
2025 IRS brackets by filing status — tax owed, effective and marginal rates.
US · SalaryPaycheck Calculator
Take-home pay after federal tax, FICA, state tax and 401(k) — per paycheck.
🇮🇳 India
India · Invest
SIP Calculator
Mutual fund SIP maturity value with step-up option and year-by-year growth.
India · LoanEMI Calculator
Personal, car or any loan — EMI, total interest and repayment schedule.
India · TaxIncome Tax Calculator (FY 2025-26)
New vs old regime comparison with 87A rebate, standard deduction and cess.
India · HomeHome Loan EMI Calculator
Housing loan EMI with prepayment savings — interest saved and tenure cut.