Calculators

Everyday calculators for dates and ages, shopping discounts and tips, loans and savings, BMI and freelance rates, with clear explanations of every result.

Dates & age

CalculatorsAge CalculatorFind your exact age in years, months and days, plus days until your next birthday. CalculatorsDate Difference & Add/Subtract CalculatorCount days, weeks, months and business days between dates, or add days to a date.

Shopping & money

CalculatorsDiscount, Sales Tax & Tip CalculatorWork out sale prices, percentage off, sales tax, tips and bill splits. ConvertersSalary Converter & PlannerConvert pay between hourly, daily, weekly, monthly and yearly amounts. CalculatorsFreelance Hourly Rate CalculatorFind the hourly rate you need to charge to cover expenses, taxes and time off.

Loans & investing

CalculatorsMortgage & Loan CalculatorGet your monthly payment and a full amortization schedule for any loan. CalculatorsCompound Interest CalculatorProject how savings grow with compound interest and regular deposits. CalculatorsROI & Investment Return CalculatorCalculate return on investment, total gain and annualized return (CAGR). CalculatorsCrypto Profit & Loss CalculatorCalculate crypto profit or loss after fees using live market prices.

Health

CalculatorsBMI CalculatorWork out your body mass index in metric or imperial units with WHO categories.