Calculators
Age Calculator
Pick a birth date (and optional “as of” date) to compute precise age breakdowns. Useful for forms, milestones, and eligibility checks — all calculated locally.
Runs entirely in your browser. Your data never leaves this device.
- Y/M/D breakdown
- As-of date
- Next birthday
- Total days lived
- Privacy-first
Workspace
Client-side · No upload
How it works
- Select date of birth.
- Optionally set an “as of” date.
- Read years, months, and days.
Key features
- Y/M/D breakdown
- As-of date
- Next birthday
- Total days lived
- Privacy-first
FAQ
Time zones?
Uses your local calendar dates from the date inputs.
Leap years?
Calendar math accounts for month lengths and leap days.
Private?
Yes.
Next birthday?
Shown when birth date is in the past.
Keep building
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