Free online calculators and tools
Fast, accurate calculators for money, everyday life, math and health. No sign-up, no downloads: everything runs in your browser.
Finance calculators
Mortgage CalculatorMonthly house payment with taxes and insuranceLoan / EMI CalculatorMonthly payment for personal, auto or any loanCompound Interest CalculatorGrow savings with interest and monthly depositsRetirement / 401(k) CalculatorProject your 401(k) with employer matchCredit Card Payoff CalculatorMonths to debt-free and interest paidSalary to Hourly CalculatorConvert annual, monthly, weekly and hourly payPaycheck CalculatorTake-home pay after 2026 taxes and 401(k)Sales Tax CalculatorAdd tax to a price or find the pre-tax amountDiscount CalculatorSale price after % off, including stacked deals2026 Tax Refund EstimatorFederal tax owed and refund for 2026
Everyday calculators
Tip CalculatorWork out the tip and split the billAge CalculatorExact age in years, months and daysDate Difference CalculatorDays, weeks and months between two dates
Math calculators
Percentage CalculatorPercent of, what percent, and % changeUnit ConverterLength, weight, volume, temperature and more