Online calculators: percentages, VAT, conversions and more.
Calculate percentages: X% of Y, increase, decrease and percentage difference.
Calculate VAT: add or remove VAT with configurable rates (4%, 10%, 22%).
Calculate your exact age in years, months, days, weeks and hours.
Calculate the difference between two dates in days, weeks, months and years.
Calculate monthly mortgage payment with complete amortization schedule.
Calculate Return on Investment (ROI) and annualized ROI.
Convert units of measurement: length, weight, area, volume, speed, data, time.
Convert temperatures between Celsius, Fahrenheit and Kelvin instantly.