# Today Age Calculator
> Free online tools that calculate exact age and the difference between two dates in years, months, days, hours and seconds. Calculations run in the browser; no dates are stored. Method and test cases are published.

## Calculators
- [Age Calculator](https://www.todayagecalculator.com/): exact age from a date of birth, today or on any date
- [How Old Am I?](https://www.todayagecalculator.com/how-old-am-i): age today from a date of birth
- [How Many Days Old Am I?](https://www.todayagecalculator.com/how-many-days-old-am-i): total days, hours and seconds lived
- [Birthday Countdown](https://www.todayagecalculator.com/birthday-countdown): months and days until the next birthday
- [Age Difference Calculator](https://www.todayagecalculator.com/age-difference-calculator): gap between two people or dates
- [Days Between Dates](https://www.todayagecalculator.com/days-between-dates): exact calendar days between two dates

## Trust and method
- [How we calculate](https://www.todayagecalculator.com/how-we-calculate): method, leap-year rules, verified test cases
- [Editorial policy](https://www.todayagecalculator.com/editorial-policy): testing, review schedule, corrections
- [About](https://www.todayagecalculator.com/about-us)
- Contact: info@todayagecalculator.com