Filling out a form, planning a milestone party, or just curious how many days you have been alive: the ChrysoKit Age Calculator gives you the answer in every unit you might want, instantly.
Why use it
Most age tools stop at 'years and months'. This one keeps going to weeks, days, hours and minutes, and lets you compute age between any two dates, not just from today.
How to use the Age Calculator
- Enter the birth date.
- Optionally change the reference date (defaults to today).
- Read the age in years, months and days.
- Expand to weeks, days, hours and minutes if needed.
Features worth knowing
Multiple unit precision
Years, months, weeks, days, hours, minutes.
Custom reference date
Compute age at any past or future date, not just today.
Next birthday countdown
See how many days until the next birthday at a glance.
Pro tips
- Use the future reference date to plan birthday parties at exactly a milestone age.
- Hours and minutes drift slightly with leap seconds and timezone changes. For legal purposes, days are the safe granularity.
- Comparing two children's ages? Set both birth dates and skip the mental math.
Privacy first. The Age Calculator runs entirely in your browser. Nothing you enter is sent to a server.
The Age Calculator answers a question that comes up more often than you would think. Bookmark it and stop counting on your fingers.
Open the tool: Age Calculator →