Bee Hive
Age Calculator
Calculate your exact age in years, months, days, and more.
About Age Calculator
Frequently Asked Questions
How accurate is the age calculation?
Extremely accurate. We use proper date mathematics that accounts for varying month lengths (28-31 days) and leap years, matching how age is legally calculated.
Does it account for leap years?
Yes! If you were born on February 29th, the calculator handles this correctly. Your birthday is typically celebrated on February 28th in non-leap years.
Can I calculate age at a future date?
Absolutely. Change the 'Calculate To Date' to any future date to see how old you'll be at that time, including days until next birthday.
Why use 'Calculate To Date' instead of just today?
This flexibility lets you calculate age at any point in time – past, present, or future. Useful for historical research, future planning, or milestone tracking.
Is my birth date stored anywhere?
No. All calculations run locally in your browser. Your birth date is never sent to any server or stored in any database.
How are the 'total' statistics calculated?
Total days is the exact number of days between dates. Weeks is days÷7. Months uses calendar months. Hours multiplies days by 24.
Why might my age in months differ from years×12?
Because months have different lengths. If you just passed a monthly anniversary but not yet your annual one, the calculation reflects this precisely.
Can I use this for calculating pet ages?
Yes! While we don't convert to 'dog years' or 'cat years', you can calculate your pet's exact age in human time units.
What's the earliest date I can enter?
The calculator works with any valid date that JavaScript can handle, which goes back hundreds of years. Perfect for historical calculations.
How do I find someone's age on a specific date?
Enter their birth date, then change 'Calculate To Date' to the specific date you're interested in. The result shows their age on that date.