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Percentage Calculator
Solve everyday percentage questions quickly and clearly.
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Age Calculator
Enter a date of birth to get an exact age in years, months, and days, plus a live countdown to the next birthday.
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Frequently asked questions
How is the age calculated?
The tool compares your date of birth with today's date, subtracting full years first, then full months, then remaining days — the same way ages are counted in everyday life.
Does it account for leap years?
Yes. Calendar dates are used directly, so February 29 and differing month lengths are handled correctly.
Is my date of birth stored anywhere?
No. Everything is calculated in your browser and nothing is sent to a server or saved.
Can I calculate an age for a future planning date?
This version compares against today. A custom comparison date is a natural next addition.