Everyday Calculators

Dates, ages, tips and other daily calculations.

Everyday calculators for dates, ages, tips and units. Work out someone's exact age, count the days between two dates, split a restaurant bill with a tip, or convert between metric and US units.

For quick answers to specific conversions, such as kilometers to miles, see the list of quick conversions.

Which calculator do I need?

• Finding an exact age: Age Calculator
• Counting days between two dates: Date Difference Calculator
• Splitting a bill with a tip: Tip Calculator
• Converting units: Unit Converter

All everyday calculators

• Age CalculatorCalculate exact age in years, months and days, and days to the next birthday.
• Date Difference CalculatorCount the days, weeks, months and years between two dates.
• Tip CalculatorWork out the tip, the total bill and each share when splitting.
• Unit ConverterConvert length, weight, volume and temperature units.