How does the age calculator compute age?
Enter the birth date; it computes exact age as Xy Xm Xd from today, plus total days lived.
Zhou (full) vs Xusui (nominal)?
Zhou counts by Gregorian birthday (used in law and documents); Xusui is traditional. This tool outputs Zhou.
Does it show a birthday countdown?
Yes — days until the next birthday for planning celebrations and reminders.
Is online calculation safe?
Safe — runs locally; birth date never uploads.
What is it best for?
Age confirmation, birthday countdowns, anniversaries, tracking kids' growth and pet ages.
Are there limits on free use?
No. Free, no registration, unlimited.
Does it support lunar birthdays?
Gregorian for now; lunar support planned.
Can it calculate pet age?
Yes — input the pet's birth date for age in days; convert to human years via cat/dog charts.