Finance Tools

Practical money calculators. Free, no sign-up, and all math runs locally in your browser. Estimates only, not financial or tax advice.

Tax

GST Calculator IndiaAdd or reverse GST with CGST/SGST/IGST breakup at GST 2.0 ratesOpen tool → VAT Calculator (UK)Add or remove UK VAT at 20% standard, 5% reduced or 0% zero rateOpen tool → HST Calculator (Canada)GST, HST, PST and QST for every province and territoryOpen tool → GST Calculator NZAdd or remove 15% New Zealand GSTOpen tool → GST Calculator AustraliaAdd or remove 10% Australian GSTOpen tool →

Loans, investing and pay

HELOC CalculatorBorrowing power and draw vs repayment payments for a home equity lineOpen tool → Reverse Mortgage CalculatorHECM-style proceeds estimate for homeowners 62+Open tool → Bonus Tax CalculatorFederal, FICA and state withholding on a bonusOpen tool → WACC CalculatorWeighted average cost of capital with a CAPM builderOpen tool → APY CalculatorConvert APR to APY across compounding frequenciesOpen tool → 401(k) Match CalculatorSee your employer match and any free money you are missingOpen tool → Cash Out Refinance CalculatorNew payment, breakeven and total interest with cash backOpen tool → VA Loan Calculator2026 funding fee, monthly payment and total costOpen tool → Student Loan CalculatorPayment, payoff date and interest saved with extra paymentsOpen tool → APR CalculatorEffective APR from rate, fees and term, or back out the note rateOpen tool → Options Profit CalculatorP/L, breakeven and payoff curve for calls and putsOpen tool → Coast FIRE CalculatorFind your coast number and the age you reach itOpen tool → Gold Loan CalculatorEligible amount, EMI and interest at RBI's 75% LTV capOpen tool →