Financial Calculators — Free Online Tools
Mortgage, loan, EMI, compound interest, savings, investment, ROI, and more. Our free financial calculators take the guesswork out of money decisions. Estimate mortgage payments, plan loan EMIs, project compound-interest growth, and compare investment returns — all in seconds, right in your browser.
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Mortgage Calculator
Free mortgage calculator to estimate monthly home loan payments, principal, interest, and total cost. Adjust down payment, term, and rate instantly.
OpenLoan Calculator
Free loan calculator for personal, auto, and student loans. Enter amount, rate, and term to see monthly payment, total interest, and total repayment cost.
OpenEMI Calculator
Free EMI calculator to compute equated monthly installments for home, car, and personal loans. See principal vs interest split and total repayment in seconds.
OpenCompound Interest Calculator
Free compound interest calculator to see how investments grow over time. Enter principal, rate, time, and compounding frequency to find your final amount.
OpenSimple Interest Calculator
Free simple interest calculator. Quickly find interest and total amount using SI = (P x R x T)/100 for loans, deposits, and short-term finance in seconds.
OpenTip Calculator
Free tip calculator to split bills and tips fairly. Enter bill total, tip percentage, and number of people for per-person totals. Quick preset buttons included.
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Discount Calculator
Free discount calculator to find sale prices and savings instantly. Enter original price and discount percent or amount. Reverse mode finds the percentage off.
OpenGST Calculator
Free GST calculator to add or remove Goods and Services Tax. Toggle inclusive or exclusive mode and choose 5%, 12%, 18%, 28%, or a custom rate instantly.
OpenSalary Calculator
Free salary calculator to convert pay across hourly, daily, weekly, bi-weekly, monthly, and annual amounts. See all equivalent pay rates from any one input.
OpenSavings Calculator
Free savings calculator. Enter initial deposit, monthly contribution, interest rate, and years to project your future balance, total deposits, and interest earned.
OpenInvestment Calculator
Free investment calculator. Enter initial amount, annual return, period, and optional monthly additions to see future value, total invested, returns, and CAGR.
OpenROI Calculator
Free ROI calculator. Enter net profit and cost of investment to compute your return on investment percentage, return ratio, and profit per dollar invested.
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Inflation Calculator
Free inflation calculator. Enter an amount, annual inflation rate, and years to see the future value needed, purchasing power lost, and the loss in percent.
OpenRetirement Calculator
Free retirement calculator. Enter your current age, savings, monthly contribution, and expected return to project savings at retirement and monthly retirement income.
OpenProfit Margin Calculator
Free profit margin calculator with gross, net, and markup modes. Enter revenue and cost figures to find your margin percentage and profit amount instantly.
OpenBreak-Even Calculator
Free break-even calculator. Enter fixed costs, variable cost per unit, and selling price to find break-even units, break-even revenue, and contribution margin.
OpenCredit Card Payoff Calculator
Free credit card payoff calculator. Enter balance, APR, and monthly payment to see months to pay off, total interest, and payments needed to clear it faster.
OpenCurrency Converter
Free currency converter. Convert amounts between USD, EUR, GBP, JPY, INR, AED, CAD, AUD, CHF, CNY, SGD, SAR, MYR, PKR and BDT using static reference rates.
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Auto Loan Calculator
Free auto loan calculator. Enter car price, down payment, trade-in, term, and rate to see your monthly payment, amount financed, total interest, and total cost.
OpenBusiness Loan Calculator
Free business loan calculator. Enter loan amount, interest rate, and term to find your monthly payment, total interest, and total repayment for your business.
OpenAbout Financial Calculators
Financial decisions shape your life, and the right calculator makes them clearer. Whether you're buying a home, financing a car, growing savings, or planning retirement, our 20 free financial calculators turn complex formulas into instant answers. A mortgage calculator reveals exactly what that monthly payment means over 30 years; an EMI calculator shows how rate and tenure interact; a compound-interest calculator proves why starting early matters.
Each tool runs entirely in your browser, so your numbers never leave your device. There's no sign-up, no fees, and no waiting. Enter your inputs, hit calculate, and read the breakdown — including total interest, amortization, and side-by-side comparisons where it helps. Numbers are formatted cleanly with currency and percentage labels, so the results are easy to share or screenshot.
Use these calculators to compare loan offers, set realistic savings goals, understand the true cost of a purchase over time, or build a retirement plan you can actually trust. Bookmark the tools you reach for most, and revisit whenever your situation changes — rates update in your inputs, and the math stays current.