Age Visualizations
Enter your birthday to explore your age in different ways.
Age in Different Units
Live time since your birth date expressed as years, days, hours, minutes, and seconds. We assume local 12:00 on the selected date for consistency.
Estimated Heartbeats & Breaths
Approximate totals since birth using population averages: ~72 heartbeats per minute and ~16 breaths per minute. Individual rates vary.
Planet Age Calculator
Your age converted to planetary years using each planet’s orbital period relative to Earth. Values show how many local years you’ve lived on that world.
Dog Years Converter
A common heuristic for canine aging: 15 dog-years for the first human year, +9 for the second, then +5 per year thereafter.
Generation & Chinese Zodiac
Generation labels are approximate (US-centric cohorts). The Chinese Zodiac cycles every 12 years starting with Rat; the cycle/position reflects time since birth.
Leap Year & Working Days
Counts leap days experienced and weekdays lived (Mon–Fri), inclusive of the birth date if it falls on a weekday and of leap days between dates.
Sleep Time Calculator
Estimated time asleep assuming an average of 8 hours per night across your lifetime. Shows absolute time and share of life spent sleeping.