Calculator library
All free online tools
Choose a calculator below and get instant results with clear assumptions and printable summaries.
Mortgage & Real Estate
Mortgage CalculatorEstimate your monthly mortgage payment, taxes, insurance, PMI, payoff date, and amortization schedule.Mortgage Affordability CalculatorEstimate how much home you may afford from income, debts, down payment, interest rate, taxes, and insurance.Refinance Break-Even CalculatorCompare your current loan with a new refinance offer and estimate break-even month and lifetime savings.Rent vs Buy CalculatorCompare long-term renting and buying costs using mortgage, appreciation, rent growth, maintenance, and selling costs.Home Appreciation CalculatorProject future home value, total gain, and annualized appreciation over a custom holding period.Global Property Tax CalculatorEstimate annual and monthly property taxes using assessed value, exemptions, and a local property tax rate.
Personal Finance
Salary to Hourly CalculatorConvert annual salary into hourly, daily, weekly, biweekly, and monthly pay.Take-Home Pay CalculatorEstimate take-home pay after income tax, social contributions, local tax, deductions, and pay frequency.Compound Interest CalculatorForecast savings growth with recurring contributions, compounding frequency, and investment horizon.Retirement Savings CalculatorEstimate retirement account growth and monthly income from current savings and contributions.Debt Payoff CalculatorCalculate payoff time and interest for a balance with APR and extra monthly payments.Budget Planner ToolBuild a monthly budget using income, housing, transportation, debt, savings, and lifestyle categories.Net Worth CalculatorCalculate net worth from cash, investments, property, loans, credit cards, and other liabilities.Emergency Fund CalculatorEstimate how much emergency savings you need based on essential monthly expenses and target months.
Loan & Credit
Personal Loan EMI CalculatorEstimate monthly EMI, total interest, and full repayment cost for a personal loan.Auto Loan CalculatorCalculate monthly auto loan payments including down payment, trade-in, tax, and APR.Student Loan CalculatorEstimate student loan monthly payment, total interest, and payoff date.Credit Card Payoff CalculatorFind payoff time and total interest for credit card debt with APR and payment amount.Debt-to-Income Ratio CalculatorCalculate front-end and back-end DTI for mortgage and loan qualification planning.
Investment
Investment Return Calculator ROIMeasure return on investment, annualized return, gain, and ending value.Stock Profit/Loss CalculatorCalculate stock trade profit, loss, return percentage, and fees.Dollar Cost Averaging CalculatorProject recurring investment growth from fixed contributions and expected annual return.Dividend Reinvestment CalculatorEstimate portfolio growth from price appreciation, dividend yield, and reinvested dividends.401k CalculatorForecast 401k growth using salary, employee contribution, employer match, and investment return.Inflation Adjusted Return CalculatorCalculate real return after inflation and compare nominal versus purchasing-power growth.
Tax Tools
Income Tax EstimatorEstimate income tax using a transparent bracket-style model for planning. Confirm local rules with your tax authority.Self-Employment Tax CalculatorEstimate self-employment tax, deductible half, and combined federal tax planning amount.Capital Gains Tax CalculatorEstimate long-term or short-term capital gains tax using your own local tax-rate assumptions.Global Sales Tax / VAT CalculatorCalculate sales tax, VAT, GST, pre-tax price, and total price for global shopping and business planning.W-4 Withholding EstimatorEstimate annual federal withholding from pay frequency, filing status, income, credits, and deductions.
Productivity & Text
Word Counter & Reading Time EstimatorCount words, characters, sentences, paragraphs, and estimate reading time for articles, resumes, and drafts.Character Counter for Social MediaCheck characters against common Twitter/X, LinkedIn, Meta, and title tag limits.AI Readability Score CheckerCalculate Flesch Reading Ease and Flesch-Kincaid grade level from your text.Pomodoro TimerRun a focused Pomodoro timer with work sessions, short breaks, long breaks, and session tracking.Time Zone ConverterConvert a date and time between major world cities and business time zones.
Unit Converters
Length Converter Imperial to MetricConvert feet, inches, yards, miles, meters, kilometers, and centimeters.Weight ConverterConvert pounds, ounces, kilograms, grams, and stones.Temperature ConverterConvert Fahrenheit, Celsius, and Kelvin instantly.Speed ConverterConvert miles per hour, kilometers per hour, meters per second, and knots.Area Converter Square Feet to Square MetersConvert square feet, square meters, acres, hectares, and square miles.